* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
@ 2022-10-04 8:52 ` Dmitry Vyukov
2022-10-06 1:15 ` Fabio M. De Francesco
` (5 subsequent siblings)
6 siblings, 0 replies; 17+ 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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^ permalink raw reply [flat|nested] 17+ messages in thread* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
2022-10-04 8:52 ` 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; 17+ 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] 17+ 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; 17+ 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] 17+ 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; 17+ 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] 17+ messages in thread
* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
2022-10-04 8:52 ` 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; 17+ 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] 17+ 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; 17+ 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] 17+ 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; 17+ 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] 17+ messages in thread
* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
` (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; 17+ 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] 17+ 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; 17+ 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] 17+ 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; 17+ 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] 17+ messages in thread
* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
` (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; 17+ 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] 17+ messages in thread* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
` (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; 17+ 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] 17+ messages in thread* Re: [syzbot] memory leak in __get_metapage
2022-10-04 8:49 [syzbot] memory leak in __get_metapage syzbot
` (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; 17+ 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] 17+ 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; 17+ 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.
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