------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5832 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/27/2026
RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76
Code: cc cc cc cc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 82 6b 0a fe e9 d8 fd ff ff e8 d8 99 8d 07 e8 b3 0d a1 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc90003c97bc0 EFLAGS: 00010293
RAX: ffffffff8425985d RBX: dead000000000122 RCX: ffff888037a20000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc90003c97c80 R08: ffff888021bdce37 R09: 1ffff1100437b9c6
R10: dffffc0000000000 R11: ffffed100437b9c7 R12: ffff888021bdc908
R13: dffffc0000000000 R14: ffff88802ba99100 R15: ffff88802ba99178
FS:  00005555562a3500(0000) GS:ffff88812553e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31023ffc CR3: 00000000634be000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_put_super+0x7d9/0x860 fs/gfs2/super.c:638
 generic_shutdown_super+0x13d/0x2d0 fs/super.c:646
 kill_block_super+0x44/0x90 fs/super.c:1725
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:269 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba2479d9d7
Code: a2 c7 05 1c fd 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffde143428 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fba24832050 RCX: 00007fba2479d9d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffde1434e0
RBP: 00007fffde1434e0 R08: 00007fffde1444e0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffde144570
R13: 00007fba24832050 R14: 000000000007fc5f R15: 00007fffde1445b0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76
Code: cc cc cc cc cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 82 6b 0a fe e9 d8 fd ff ff e8 d8 99 8d 07 e8 b3 0d a1 fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6
RSP: 0018:ffffc90003c97bc0 EFLAGS: 00010293
RAX: ffffffff8425985d RBX: dead000000000122 RCX: ffff888037a20000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc90003c97c80 R08: ffff888021bdce37 R09: 1ffff1100437b9c6
R10: dffffc0000000000 R11: ffffed100437b9c7 R12: ffff888021bdc908
R13: dffffc0000000000 R14: ffff88802ba99100 R15: ffff88802ba99178
FS:  00005555562a3500(0000) GS:ffff88812553e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fd81169ee8 CR3: 00000000634be000 CR4: 00000000003526f0