Re: [syzbot] memory leak in __get

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* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
@ 2022-10-04  8:52 ` Dmitry Vyukov
  2022-10-06  1:15 ` Fabio M. De Francesco
                   ` (5 subsequent siblings)
  6 siblings, 0 replies; 16+ messages in thread
From: Dmitry Vyukov @ 2022-10-04  8:52 UTC (permalink / raw)
  To: syzbot, shaggy, jfs-discussion
  Cc: akpm, linux-kernel, linux-mm, syzkaller-bugs

On Tue, 4 Oct 2022 at 10:49, syzbot
<syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/vmlinux-4fe89d07.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]

+jfs maintainers

>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this issue, for details see:
> https://goo.gl/tpsmEJ#testing-patches
>
> --
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> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/0000000000008a5a2e05ea318aa9%40google.com.


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
  2022-10-04  8:52 ` [syzbot] memory leak in __get_metapage Dmitry Vyukov
@ 2022-10-06  1:15 ` Fabio M. De Francesco
  2022-10-06  1:16   ` syzbot
  2022-10-11 11:00   ` syzbot
  2022-10-06  1:20 ` Fabio M. De Francesco
                   ` (4 subsequent siblings)
  6 siblings, 2 replies; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06  1:15 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot

[-- Attachment #1: Type: text/plain, Size: 7172 bytes --]

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 


[-- Attachment #2: jfs.diff --]
[-- Type: text/x-patch, Size: 320 bytes --]

diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 2e8461ce74de..b3ba1cefc230 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -678,6 +678,7 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
 
 unlock:
 	unlock_page(page);
+	put_page(page);
 	return NULL;
 }
 

^ permalink raw reply related	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:15 ` Fabio M. De Francesco
@ 2022-10-06  1:16   ` syzbot
  2022-10-11 11:00   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06  1:16 UTC (permalink / raw)
  To: Fabio M. De Francesco
  Cc: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

> On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    4fe89d07dcc2 Linux 6.0
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
>> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
> for Debian) 2.35.2
>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>> 
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
> disk-4fe89d07.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
> vmlinux-4fe89d07.xz
>> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e00 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339d80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff8881142f0300 (size 128):
>>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 

want 2 args (repo, branch), got 1

>


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:15 ` Fabio M. De Francesco
  2022-10-06  1:16   ` syzbot
@ 2022-10-11 11:00   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-11 11:00 UTC (permalink / raw)
  To: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in __get_metapage

BUG: memory leak
unreferenced object 0xffff888115b53800 (size 128):
  comm "syz-executor.0", pid 4198, jiffies 4294944352 (age 13.760s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f373>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c4f24e>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c4f24e>] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c37cc2>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c396b4>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c396b4>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c3b4df>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c4c1da>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c2e937>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f0df3>] vfs_mkdir+0x223/0x340 fs/namei.c:4035
    [<ffffffff815f9d65>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060
    [<ffffffff815f9ed9>] __do_sys_mkdir fs/namei.c:4080 [inline]
    [<ffffffff815f9ed9>] __se_sys_mkdir fs/namei.c:4078 [inline]
    [<ffffffff815f9ed9>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078
    [<ffffffff845fee85>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845fee85>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888115b53880 (size 128):
  comm "syz-executor.0", pid 4198, jiffies 4294944352 (age 13.760s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f373>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c4f24e>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c4f24e>] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c37cc2>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c396b4>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c396b4>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c3b4df>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c4c1da>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c2e937>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f0df3>] vfs_mkdir+0x223/0x340 fs/namei.c:4035
    [<ffffffff815f9d65>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060
    [<ffffffff815f9ed9>] __do_sys_mkdir fs/namei.c:4080 [inline]
    [<ffffffff815f9ed9>] __se_sys_mkdir fs/namei.c:4078 [inline]
    [<ffffffff815f9ed9>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078
    [<ffffffff845fee85>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845fee85>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888115b53900 (size 128):
  comm "syz-executor.0", pid 4198, jiffies 4294944352 (age 13.760s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f373>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c4f24e>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c4f24e>] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c37cc2>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c396b4>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c396b4>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c3b4df>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c4c1da>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c2e937>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f0df3>] vfs_mkdir+0x223/0x340 fs/namei.c:4035
    [<ffffffff815f9d65>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060
    [<ffffffff815f9ed9>] __do_sys_mkdir fs/namei.c:4080 [inline]
    [<ffffffff815f9ed9>] __se_sys_mkdir fs/namei.c:4078 [inline]
    [<ffffffff815f9ed9>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078
    [<ffffffff845fee85>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845fee85>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888116622700 (size 128):
  comm "syz-executor.0", pid 4739, jiffies 4294944954 (age 7.740s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f373>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c4f24e>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c4f24e>] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c37cc2>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c396b4>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c396b4>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c3b4df>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c4c1da>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c2e937>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f0df3>] vfs_mkdir+0x223/0x340 fs/namei.c:4035
    [<ffffffff815f9d65>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060
    [<ffffffff815f9ed9>] __do_sys_mkdir fs/namei.c:4080 [inline]
    [<ffffffff815f9ed9>] __se_sys_mkdir fs/namei.c:4078 [inline]
    [<ffffffff815f9ed9>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078
    [<ffffffff845fee85>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff845fee85>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd



Tested on:

commit:         60bb8154 Merge tag 'xfs-6.1-for-linus' of git://git.ke..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git --
console output: https://syzkaller.appspot.com/x/log.txt?x=171a96dc880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=589d84e4754dd2fa
dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1095fc78880000



^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
  2022-10-04  8:52 ` [syzbot] memory leak in __get_metapage Dmitry Vyukov
  2022-10-06  1:15 ` Fabio M. De Francesco
@ 2022-10-06  1:20 ` Fabio M. De Francesco
  2022-10-06  1:20   ` syzbot
  2022-10-11 10:32   ` syzbot
  2022-10-06  1:23 ` Fabio M. De Francesco
                   ` (3 subsequent siblings)
  6 siblings, 2 replies; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06  1:20 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
4fe89d07dcc2 Linux 6.0

> 
> 
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
> 
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> syzbot can test patches for this issue, for details see:
> https://goo.gl/tpsmEJ#testing-patches
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
"syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/
syzkaller-bugs/0000000000008a5a2e05ea318aa9%40google.com.
> 






^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:20 ` Fabio M. De Francesco
@ 2022-10-06  1:20   ` syzbot
  2022-10-11 10:32   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06  1:20 UTC (permalink / raw)
  To: Fabio M. De Francesco
  Cc: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

> On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    4fe89d07dcc2 Linux 6.0
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
>> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
> for Debian) 2.35.2
>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>> 
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
> disk-4fe89d07.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
> vmlinux-4fe89d07.xz
>> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e00 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339d80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff8881142f0300 (size 128):
>>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 

want 2 args (repo, branch), got 4

> 4fe89d07dcc2 Linux 6.0
>
>> 
>> 
>> ---
>> This report is generated by a bot. It may contain errors.
>> See https://goo.gl/tpsmEJ for more information about syzbot.
>> syzbot engineers can be reached at syzkaller@googlegroups.com.
>> 
>> syzbot will keep track of this issue. See:
>> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>> syzbot can test patches for this issue, for details see:
>> https://goo.gl/tpsmEJ#testing-patches
>> 
>> -- 
>> You received this message because you are subscribed to the Google Groups 
> "syzkaller-bugs" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
> email to syzkaller-bugs+unsubscribe@googlegroups.com.
>> To view this discussion on the web visit https://groups.google.com/d/msgid/
> syzkaller-bugs/0000000000008a5a2e05ea318aa9%40google.com.
>> 
>
>
>
>


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:20 ` Fabio M. De Francesco
  2022-10-06  1:20   ` syzbot
@ 2022-10-11 10:32   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-11 10:32 UTC (permalink / raw)
  To: Fabio M. De Francesco
  Cc: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

> On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    4fe89d07dcc2 Linux 6.0
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
>> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
> for Debian) 2.35.2
>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>> 
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
> disk-4fe89d07.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
> vmlinux-4fe89d07.xz
>> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e00 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339d80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff8881142f0300 (size 128):
>>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 

want 2 args (repo, branch), got 4

> 4fe89d07dcc2 Linux 6.0
>
>> 
>> 
>> ---
>> This report is generated by a bot. It may contain errors.
>> See https://goo.gl/tpsmEJ for more information about syzbot.
>> syzbot engineers can be reached at syzkaller@googlegroups.com.
>> 
>> syzbot will keep track of this issue. See:
>> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>> syzbot can test patches for this issue, for details see:
>> https://goo.gl/tpsmEJ#testing-patches
>> 
>> -- 
>> You received this message because you are subscribed to the Google Groups 
> "syzkaller-bugs" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
> email to syzkaller-bugs+unsubscribe@googlegroups.com.
>> To view this discussion on the web visit https://groups.google.com/d/msgid/
> syzkaller-bugs/0000000000008a5a2e05ea318aa9%40google.com.
>> 
>
>
>
>
> -- 
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/2136501.irdbgypaU6%40mypc.


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
                   ` (2 preceding siblings ...)
  2022-10-06  1:20 ` Fabio M. De Francesco
@ 2022-10-06  1:23 ` Fabio M. De Francesco
  2022-10-06  1:23   ` syzbot
  2022-10-11 10:32   ` syzbot
  2022-10-06  1:28 ` Fabio M. De Francesco
                   ` (2 subsequent siblings)
  6 siblings, 2 replies; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06  1:23 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
Linux 6.0






^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:23 ` Fabio M. De Francesco
@ 2022-10-06  1:23   ` syzbot
  2022-10-11 10:32   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06  1:23 UTC (permalink / raw)
  To: Fabio M. De Francesco
  Cc: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

> On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    4fe89d07dcc2 Linux 6.0
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
>> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
> for Debian) 2.35.2
>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>> 
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
> disk-4fe89d07.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
> vmlinux-4fe89d07.xz
>> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e00 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339d80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff8881142f0300 (size 128):
>>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 

want 2 args (repo, branch), got 3

> Linux 6.0
>
>
>
>


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:23 ` Fabio M. De Francesco
  2022-10-06  1:23   ` syzbot
@ 2022-10-11 10:32   ` syzbot
  1 sibling, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-11 10:32 UTC (permalink / raw)
  To: Fabio M. De Francesco
  Cc: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

> On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
>> Hello,
>> 
>> syzbot found the following issue on:
>> 
>> HEAD commit:    4fe89d07dcc2 Linux 6.0
>> git tree:       upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
>> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
>> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
>> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
> for Debian) 2.35.2
>> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
>> 
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
> disk-4fe89d07.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
> vmlinux-4fe89d07.xz
>> 
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339e00 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff888114339d80 (size 128):
>>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>> BUG: memory leak
>> unreferenced object 0xffff8881142f0300 (size 128):
>>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>>   hex dump (first 32 bytes):
>>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>>   backtrace:
>>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
>> 
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 

want 2 args (repo, branch), got 3

> Linux 6.0
>
>
>
>
> -- 
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/2867034.e9J7NaK4W3%40mypc.


^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
                   ` (3 preceding siblings ...)
  2022-10-06  1:23 ` Fabio M. De Francesco
@ 2022-10-06  1:28 ` Fabio M. De Francesco
  2022-10-06  9:43   ` syzbot
  2022-10-06 19:43 ` Fabio M. De Francesco
  2022-10-06 23:26 ` Fabio M. De Francesco
  6 siblings, 1 reply; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06  1:28 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot

[-- Attachment #1: Type: text/plain, Size: 7173 bytes --]

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6.0

[-- Attachment #2: jfs.diff --]
[-- Type: text/x-patch, Size: 320 bytes --]

diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 2e8461ce74de..b3ba1cefc230 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -678,6 +678,7 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
 
 unlock:
 	unlock_page(page);
+	put_page(page);
 	return NULL;
 }
 

^ permalink raw reply related	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06  1:28 ` Fabio M. De Francesco
@ 2022-10-06  9:43   ` syzbot
  0 siblings, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06  9:43 UTC (permalink / raw)
  To: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

failed to checkout kernel repo git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/6.0: failed to run ["git" "fetch" "--force" "f569e972c8e9057ee9c286220c83a480ebf30cc5" "6.0"]: exit status 128
fatal: couldn't find remote ref 6.0



Tested on:

commit:         [unknown 
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6.0
dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
compiler:       
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1634a658880000



^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
                   ` (4 preceding siblings ...)
  2022-10-06  1:28 ` Fabio M. De Francesco
@ 2022-10-06 19:43 ` Fabio M. De Francesco
  2022-10-06 22:03   ` syzbot
  2022-10-06 23:26 ` Fabio M. De Francesco
  6 siblings, 1 reply; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06 19:43 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot, Ira

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 

I'm still providing the "syz test" command with wrong syntax.
Let's try what I found in older tests of mine...

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master





^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06 19:43 ` Fabio M. De Francesco
@ 2022-10-06 22:03   ` syzbot
  0 siblings, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06 22:03 UTC (permalink / raw)
  To: akpm, fmdefrancesco, ira.weiny, linux-kernel, linux-mm,
	syzkaller-bugs

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
SYZFATAL: executor failed NUM times: executor NUM: exit status NUM

2022/10/06 22:02:25 SYZFATAL: executor failed 11 times: executor 0: exit status 67
SYZFAIL: wrong response packet
 (errno 16: Device or resource busy)
loop exited with status 67

SYZFAIL: wrong response packet
 (errno 16: Device or resource busy)
loop exited with status 67

Tested on:

commit:         ffb39098 Merge tag 'linux-kselftest-kunit-6.1-rc1' of ..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=167fffb8880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=10f41fbb818af57a
dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.

^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
       [not found] <0000000000008a5a2e05ea318aa9@google.com>
                   ` (5 preceding siblings ...)
  2022-10-06 19:43 ` Fabio M. De Francesco
@ 2022-10-06 23:26 ` Fabio M. De Francesco
  2022-10-06 23:54   ` syzbot
  6 siblings, 1 reply; 16+ messages in thread
From: Fabio M. De Francesco @ 2022-10-06 23:26 UTC (permalink / raw)
  To: akpm, linux-kernel, linux-mm, syzkaller-bugs; +Cc: syzbot

On Tuesday, October 4, 2022 10:49:42 AM CEST syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    4fe89d07dcc2 Linux 6.0
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=169a7924880000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=21254cf9c7c084e0
> dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils 
for Debian) 2.35.2
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=10bdd7ec880000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/651a252f7035/
disk-4fe89d07.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/776feb8e0e5b/
vmlinux-4fe89d07.xz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+389b82b29093b3e2640a@syzkaller.appspotmail.com
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339e00 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff888114339d80 (size 128):
>   comm "syz-executor.0", pid 3673, jiffies 4295017005 (age 12.610s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> BUG: memory leak
> unreferenced object 0xffff8881142f0300 (size 128):
>   comm "syz-executor.0", pid 3676, jiffies 4295017533 (age 7.330s)
>   hex dump (first 32 bytes):
>     00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<ffffffff814927b3>] mempool_alloc+0x73/0x230 mm/mempool.c:392
>     [<ffffffff81c5aefa>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
>     [<ffffffff81c5aefa>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
>     [<ffffffff81c43862>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
>     [<ffffffff81c45254>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
>     [<ffffffff81c45254>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
>     [<ffffffff81c4707f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
>     [<ffffffff81c57d9a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
>     [<ffffffff81c3a4c7>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
>     [<ffffffff815fc703>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
>     [<ffffffff816056e5>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
>     [<ffffffff81605859>] __do_sys_mkdir fs/namei.c:4058 [inline]
>     [<ffffffff81605859>] __se_sys_mkdir fs/namei.c:4056 [inline]
>     [<ffffffff81605859>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
>     [<ffffffff845eab95>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
>     [<ffffffff845eab95>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
>     [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master






^ permalink raw reply	[flat|nested] 16+ messages in thread

* Re: [syzbot] memory leak in __get_metapage
  2022-10-06 23:26 ` Fabio M. De Francesco
@ 2022-10-06 23:54   ` syzbot
  0 siblings, 0 replies; 16+ messages in thread
From: syzbot @ 2022-10-06 23:54 UTC (permalink / raw)
  To: akpm, fmdefrancesco, linux-kernel, linux-mm, syzkaller-bugs

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in __get_metapage

BUG: memory leak
unreferenced object 0xffff88810abfae80 (size 128):
  comm "syz-executor.0", pid 4206, jiffies 4294944336 (age 14.270s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f863>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5adba>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5adba>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43722>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45114>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45114>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c46f3f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57c5a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a397>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f9a23>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff81602a05>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81602b79>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81602b79>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81602b79>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff846099a5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff846099a5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810abfaf00 (size 128):
  comm "syz-executor.0", pid 4206, jiffies 4294944336 (age 14.270s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f863>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5adba>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5adba>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43722>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45114>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45114>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c46f3f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57c5a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a397>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f9a23>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff81602a05>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81602b79>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81602b79>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81602b79>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff846099a5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff846099a5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810a5a7080 (size 128):
  comm "syz-executor.0", pid 4206, jiffies 4294944336 (age 14.270s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f863>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5adba>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5adba>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43722>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45114>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45114>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c46f3f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57c5a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a397>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f9a23>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff81602a05>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81602b79>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81602b79>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81602b79>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff846099a5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff846099a5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888114d44e80 (size 128):
  comm "syz-executor.0", pid 4734, jiffies 4294944949 (age 8.140s)
  hex dump (first 32 bytes):
    00 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8148f863>] mempool_alloc+0x73/0x230 mm/mempool.c:392
    [<ffffffff81c5adba>] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline]
    [<ffffffff81c5adba>] __get_metapage+0x38a/0x9b0 fs/jfs/jfs_metapage.c:651
    [<ffffffff81c43722>] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265
    [<ffffffff81c45114>] diAllocExt fs/jfs/jfs_imap.c:1945 [inline]
    [<ffffffff81c45114>] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662
    [<ffffffff81c46f3f>] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583
    [<ffffffff81c57c5a>] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56
    [<ffffffff81c3a397>] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225
    [<ffffffff815f9a23>] vfs_mkdir+0x223/0x340 fs/namei.c:4013
    [<ffffffff81602a05>] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4038
    [<ffffffff81602b79>] __do_sys_mkdir fs/namei.c:4058 [inline]
    [<ffffffff81602b79>] __se_sys_mkdir fs/namei.c:4056 [inline]
    [<ffffffff81602b79>] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4056
    [<ffffffff846099a5>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff846099a5>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84800087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd



Tested on:

commit:         ffb39098 Merge tag 'linux-kselftest-kunit-6.1-rc1' of ..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14c99b0a880000
kernel config:  https://syzkaller.appspot.com/x/.config?x=10f41fbb818af57a
dashboard link: https://syzkaller.appspot.com/bug?extid=389b82b29093b3e2640a
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.


^ permalink raw reply	[flat|nested] 16+ messages in thread

end of thread, other threads:[~2022-10-11 11:00 UTC | newest]

Thread overview: 16+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
     [not found] <0000000000008a5a2e05ea318aa9@google.com>
2022-10-04  8:52 ` [syzbot] memory leak in __get_metapage Dmitry Vyukov
2022-10-06  1:15 ` Fabio M. De Francesco
2022-10-06  1:16   ` syzbot
2022-10-11 11:00   ` syzbot
2022-10-06  1:20 ` Fabio M. De Francesco
2022-10-06  1:20   ` syzbot
2022-10-11 10:32   ` syzbot
2022-10-06  1:23 ` Fabio M. De Francesco
2022-10-06  1:23   ` syzbot
2022-10-11 10:32   ` syzbot
2022-10-06  1:28 ` Fabio M. De Francesco
2022-10-06  9:43   ` syzbot
2022-10-06 19:43 ` Fabio M. De Francesco
2022-10-06 22:03   ` syzbot
2022-10-06 23:26 ` Fabio M. De Francesco
2022-10-06 23:54   ` syzbot

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