syzbot


kernel BUG in reiserfs_rename

Status: upstream: reported C repro on 2024/01/22 10:19
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+11df545e92267a446a5e@syzkaller.appspotmail.com
First crash: 155d, last: 155d
Fix bisection: failed (error log, bisect log)
  
Bug presence (1)
Date Name Commit Repro Result
2024/01/22 upstream (ToT) 6613476e225e C [report] kernel BUG in reiserfs_rename
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in reiserfs_rename origin:upstream C 1 36d 270d 0/3 upstream: reported C repro on 2023/09/29 12:23
upstream kernel BUG in reiserfs_rename reiserfs C unreliable done 6 157d 332d 0/27 auto-obsoleted due to no activity on 2024/04/28 17:48

Sample crash report:
REISERFS (device loop3): Remounting filesystem read-only
REISERFS panic (device loop3): vs-7050 reiserfs_rename: new entry is found, new inode == 0
------------[ cut here ]------------
kernel BUG at fs/reiserfs/prints.c:390!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4883 Comm: syz-executor113 Not tainted 5.15.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
lr : __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
sp : ffff80001ccc7120
x29: ffff80001ccc71e0 x28: ffff80001ccc74a0 x27: ffff80001ccc77b0
x26: ffff0000df483d58 x25: ffff0000df483d30 x24: ffff80001ccc71a0
x23: ffff80001ccc7160 x22: ffff800011bc4260 x21: ffff0000da2cc000
x20: ffff800011bc4240 x19: ffff800014063e05 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001198299c x15: 00000000ffffffff
x14: ffff0000d2f63680 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : a198e1722c00ff00
x8 : a198e1722c00ff00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001ccc6898 x4 : ffff8000149ff8e0 x3 : ffff80000854e290
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000005a
Call trace:
 __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
 reiserfs_rename+0x19d8/0x1c88 fs/reiserfs/namei.c:1427
 vfs_rename+0x8b8/0xd04 fs/namei.c:4819
 do_renameat2+0x9f4/0x10b0 fs/namei.c:4971
 __do_sys_renameat fs/namei.c:5011 [inline]
 __se_sys_renameat fs/namei.c:5008 [inline]
 __arm64_sys_renameat+0xc8/0xe4 fs/namei.c:5008
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: b007c405 912700a5 aa1303e4 95c9af9a (d4210000) 
---[ end trace 8820fa21b35deae3 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/01/22 10:19 linux-5.15.y ddcaf4999061 9bd8dcda .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan-arm64 kernel BUG in reiserfs_rename
* Struck through repros no longer work on HEAD.