gfs2: fsid=syz:syz.0: jid=0, already locked for use
gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
------------[ cut here ]------------
kernel BUG at block/bio.c:340!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5809 Comm: kworker/1:4 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: gfs2_recovery gfs2_recover_func
RIP: 0010:bio_chain+0xe4/0xf0 block/bio.c:340
Code: d2 df dc fd f0 ff 43 1c 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 f9 80 e1 07 fe c1 38 c1 7c d4 e8 93 dd dc fd eb cd e8 bc 6d 85 fd <0f> 0b e8 b5 6d 85 fd 0f 0b 0f 1f 00 f3 0f 1e fa 55 41 57 41 56 41
RSP: 0018:ffffc900048bf670 EFLAGS: 00010293
RAX: ffffffff84003d44 RBX: ffff88801afef140 RCX: ffff88805b701e00
RDX: 0000000000000000 RSI: ffff88801afef140 RDI: ffff88801afef500
RBP: 0000000000000004 R08: ffffffff8e4a39ef R09: 1ffffffff1c9473d
R10: dffffc0000000000 R11: fffffbfff1c9473e R12: dffffc0000000000
R13: 1ffff110035fdea8 R14: ffff88801afef500 R15: ffff88801afef540
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc983c4295f CR3: 0000000075209000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 gfs2_chain_bio fs/gfs2/lops.c:495 [inline]
 gfs2_find_jhead+0x5fa/0xd20 fs/gfs2/lops.c:559
 gfs2_recover_func+0x688/0x1c60 fs/gfs2/recovery.c:460
 process_one_work kernel/workqueue.c:2634 [inline]
 process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bio_chain+0xe4/0xf0 block/bio.c:340
Code: d2 df dc fd f0 ff 43 1c 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 f9 80 e1 07 fe c1 38 c1 7c d4 e8 93 dd dc fd eb cd e8 bc 6d 85 fd <0f> 0b e8 b5 6d 85 fd 0f 0b 0f 1f 00 f3 0f 1e fa 55 41 57 41 56 41
RSP: 0018:ffffc900048bf670 EFLAGS: 00010293
RAX: ffffffff84003d44 RBX: ffff88801afef140 RCX: ffff88805b701e00
RDX: 0000000000000000 RSI: ffff88801afef140 RDI: ffff88801afef500
RBP: 0000000000000004 R08: ffffffff8e4a39ef R09: 1ffffffff1c9473d
R10: dffffc0000000000 R11: fffffbfff1c9473e R12: dffffc0000000000
R13: 1ffff110035fdea8 R14: ffff88801afef500 R15: ffff88801afef540
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc983c4295f CR3: 0000000075209000 CR4: 00000000003506e0