syzbot


WARNING in reiserfs_lookup

Status: upstream: reported on 2023/10/27 08:04
Reported-by: syzbot+12fc39911136cf56517a@syzkaller.appspotmail.com
First crash: 241d, last: 71d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in reiserfs_lookup 3 337d 378d 0/3 auto-obsoleted due to no activity on 2023/10/31 18:44
upstream WARNING in reiserfs_lookup reiserfs C inconclusive done 1259 160d 669d 0/27 auto-obsoleted due to no activity on 2024/04/28 17:50
linux-5.15 WARNING in reiserfs_lookup (2) 3 77d 85d 0/3 upstream: reported on 2024/03/31 03:45

Sample crash report:
loop0: detected capacity change from 0 to 1024
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(lock->magic != lock)
WARNING: CPU: 1 PID: 7330 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline]
WARNING: CPU: 1 PID: 7330 at kernel/locking/mutex.c:582 __mutex_lock+0xc5c/0xd80 kernel/locking/mutex.c:747
Modules linked in:
CPU: 1 PID: 7330 Comm: syz-executor.0 Not tainted 6.1.83-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline]
RIP: 0010:__mutex_lock+0xc5c/0xd80 kernel/locking/mutex.c:747
Code: 04 20 84 c0 0f 85 13 01 00 00 83 3d d5 be e0 03 00 0f 85 bb f4 ff ff 48 c7 c7 e0 d8 eb 8a 48 c7 c6 80 d9 eb 8a e8 34 a1 bf f6 <0f> 0b e9 a1 f4 ff ff 0f 0b e9 cb f8 ff ff 0f 0b e9 2e f5 ff ff 48
RSP: 0018:ffffc90006067660 EFLAGS: 00010246
RAX: 94d94f5d8c253a00 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc900111d5000 RSI: 0000000000001bd9 RDI: 0000000000001bda
RBP: ffffc900060677c0 R08: ffffffff81527eae R09: ffffed1017324f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff88807db1a828 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007ffab3bdb6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd947400000 CR3: 00000000211d0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 reiserfs_write_lock+0x76/0xd0 fs/reiserfs/lock.c:27
 reiserfs_lookup+0x15c/0x4b0 fs/reiserfs/namei.c:364
 __lookup_slow+0x27e/0x3d0 fs/namei.c:1690
 lookup_slow+0x53/0x70 fs/namei.c:1707
 walk_component+0x2d0/0x400 fs/namei.c:1998
 lookup_last fs/namei.c:2455 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2479
 filename_lookup+0x251/0x600 fs/namei.c:2508
 user_path_at_empty+0x3e/0x60 fs/namei.c:2907
 user_path_at include/linux/namei.h:57 [inline]
 path_setxattr+0xae/0x2a0 fs/xattr.c:631
 __do_sys_setxattr fs/xattr.c:652 [inline]
 __se_sys_setxattr fs/xattr.c:648 [inline]
 __x64_sys_setxattr+0xb7/0xd0 fs/xattr.c:648
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ffab2e7dda9
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:00007ffab3bdb0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007ffab2fabf80 RCX: 00007ffab2e7dda9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000040
RBP: 00007ffab2eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007ffab2fabf80 R15: 00007ffc954d7d38
 </TASK>

Crashes (6):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/02 11:03 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in reiserfs_lookup
2024/04/14 04:33 linux-6.1.y cd5d98c0556c c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in reiserfs_lookup
2024/03/30 03:03 linux-6.1.y e5cd595e23c1 6baf5069 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in reiserfs_lookup
2023/12/24 22:27 linux-6.1.y 4aa6747d9352 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in reiserfs_lookup
2023/11/06 10:04 linux-6.1.y 4a61839152cc 500bfdc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in reiserfs_lookup
2023/10/27 08:03 linux-6.1.y 32c9cdbe383c bf285f0c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in reiserfs_lookup
* Struck through repros no longer work on HEAD.