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g20-20020a05660226d400b006a3f88e4852mr10343152ioo.55.1665486023284; Tue, 11 Oct 2022 04:00:23 -0700 (PDT) Date: Tue, 11 Oct 2022 04:00:23 -0700 In-Reply-To: <4449089.LvFx2qVVIh@mypc> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cbe1c005eac02e1a@google.com> Subject: Re: [syzbot] memory leak in __get_metapage From: syzbot To: akpm@linux-foundation.org, fmdefrancesco@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: [] mempool_alloc+0x73/0x230 mm/mempool.c:392 [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] [] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651 [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 [] vfs_mkdir+0x223/0x340 fs/namei.c:4035 [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060 [] __do_sys_mkdir fs/namei.c:4080 [inline] [] __se_sys_mkdir fs/namei.c:4078 [inline] [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] 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: [] mempool_alloc+0x73/0x230 mm/mempool.c:392 [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] [] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651 [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 [] vfs_mkdir+0x223/0x340 fs/namei.c:4035 [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060 [] __do_sys_mkdir fs/namei.c:4080 [inline] [] __se_sys_mkdir fs/namei.c:4078 [inline] [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] 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: [] mempool_alloc+0x73/0x230 mm/mempool.c:392 [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] [] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651 [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 [] vfs_mkdir+0x223/0x340 fs/namei.c:4035 [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060 [] __do_sys_mkdir fs/namei.c:4080 [inline] [] __se_sys_mkdir fs/namei.c:4078 [inline] [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] 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: [] mempool_alloc+0x73/0x230 mm/mempool.c:392 [] alloc_metapage fs/jfs/jfs_metapage.c:176 [inline] [] __get_metapage+0x3ae/0xae0 fs/jfs/jfs_metapage.c:651 [] diNewExt+0x3f2/0x9d0 fs/jfs/jfs_imap.c:2265 [] diAllocExt fs/jfs/jfs_imap.c:1945 [inline] [] diAllocAG+0x9a4/0xd50 fs/jfs/jfs_imap.c:1662 [] diAlloc+0x31f/0x900 fs/jfs/jfs_imap.c:1583 [] ialloc+0x6a/0x3a0 fs/jfs/jfs_inode.c:56 [] jfs_mkdir+0xf7/0x480 fs/jfs/namei.c:225 [] vfs_mkdir+0x223/0x340 fs/namei.c:4035 [] do_mkdirat+0x1a5/0x1e0 fs/namei.c:4060 [] __do_sys_mkdir fs/namei.c:4080 [inline] [] __se_sys_mkdir fs/namei.c:4078 [inline] [] __x64_sys_mkdir+0x69/0x90 fs/namei.c:4078 [] do_syscall_x64 arch/x86/entry/common.c:50 [inline] [] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 [] 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