syzbot


kernel BUG in jfs_flush_journal

Status: upstream: reported on 2024/04/17 08:47
Reported-by: syzbot+85a8c95eb878392e9b04@syzkaller.appspotmail.com
First crash: 59d, last: 59d
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in jfs_flush_journal (2) jfs 1 14d 10d 0/27 upstream: reported on 2024/06/04 21:13
upstream kernel BUG in jfs_flush_journal jfs 2 455d 452d 0/27 auto-obsoleted due to no activity on 2023/07/16 07:52

Sample crash report:
BUG at fs/jfs/jfs_logmgr.c:1588 assert(list_empty(&log->cqueue))
------------[ cut here ]------------
kernel BUG at fs/jfs/jfs_logmgr.c:1588!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 5921 Comm: syz-executor.1 Not tainted 6.1.86-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : jfs_flush_journal+0xd1c/0xd64 fs/jfs/jfs_logmgr.c:1588
lr : jfs_flush_journal+0xd1c/0xd64 fs/jfs/jfs_logmgr.c:1588
sp : ffff80001e3376e0
x29: ffff80001e3377d0 x28: dfff800000000000 x27: 1fffe0001e7eee45
x26: 1fffe0001e7eee35 x25: 1fffe0001e7eee00 x24: ffff0000e2574e60
x23: ffff0000f3f77000 x22: ffff0000f3f77228 x21: 00000000000000c8
x20: ffff0000f3f771a8 x19: ffff0000f3f77000 x18: ffff80001e336b98
x17: 0000000000000000 x16: ffff800012156b1c x15: 0000000000000000
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000ff0100 x10: 0000000000000000 x9 : b7e43f56beb0d700
x8 : b7e43f56beb0d700 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001e336ff8 x4 : ffff800015922b00 x3 : ffff80000aa9130c
x2 : ffff0001b4359cd0 x1 : 0000000100000000 x0 : 0000000000000040
Call trace:
 jfs_flush_journal+0xd1c/0xd64 fs/jfs/jfs_logmgr.c:1588
 jfs_umount+0xf8/0x338 fs/jfs/jfs_umount.c:58
 jfs_put_super+0x90/0x188 fs/jfs/super.c:194
 generic_shutdown_super+0x130/0x328 fs/super.c:501
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x9c/0x168 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: f0046243 91240063 5280c682 95956614 (d4210000) 
---[ end trace 0000000000000000 ]---

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/17 08:46 linux-6.1.y cd5d98c0556c 18f6e127 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in jfs_flush_journal
* Struck through repros no longer work on HEAD.