Hello, syzbot found the following issue on: HEAD commit: c42d9eeef8e5 Merge tag 'hardening-v6.7-rc2' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1304d797680000 kernel config: https://syzkaller.appspot.com/x/.config?x=d05dd66e2eb2c872 dashboard link: https://syzkaller.appspot.com/bug?extid=1226ab53d5b557d64251 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2ef75a216da3/disk-c42d9eee.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/dc9e5a2c2dd2/vmlinux-c42d9eee.xz kernel image: https://storage.googleapis.com/syzbot-assets/0f11915f952a/bzImage-c42d9eee.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+1226ab53d5b557d64251@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 4030 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline] WARNING: CPU: 1 PID: 4030 at kernel/locking/mutex.c:582 __mutex_lock+0xc36/0xd60 kernel/locking/mutex.c:747 Modules linked in: CPU: 1 PID: 4030 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller-00019-gc42d9eeef8e5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline] RIP: 0010:__mutex_lock+0xc36/0xd60 kernel/locking/mutex.c:747 Code: 0f b6 04 20 84 c0 0f 85 18 01 00 00 83 3d 21 d6 e0 03 00 75 19 90 48 c7 c7 40 9a 6a 8b 48 c7 c6 e0 9a 6a 8b e8 cb 39 34 f6 90 <0f> 0b 90 90 90 e9 c8 f4 ff ff 90 0f 0b 90 e9 d6 f8 ff ff 90 0f 0b RSP: 0018:ffffc9000328fd20 EFLAGS: 00010246 RAX: 7ede61b6dd80c100 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90004c51000 RSI: 00000000000023d8 RDI: 00000000000023d9 RBP: ffffc9000328fe78 R08: ffffffff81545a92 R09: 1ffff11017325172 R10: dffffc0000000000 R11: ffffed1017325173 R12: dffffc0000000000 R13: ffff88803671b028 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f847f8926c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdf0d8e5000 CR3: 0000000028105000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_ioctl+0x74/0x2f0 fs/reiserfs/ioctl.c:81 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xf8/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f847ea7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f847f8920c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f847eb9bf80 RCX: 00007f847ea7cae9 RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000005 RBP: 00007f847eac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f847eb9bf80 R15: 00007ffcbd03c0f8 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
