------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
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 01/13/2026
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 78 ab fd 48 8b 5c 24 38 48 8d 7b 78 48 89 f8 48 c1 e8 03 80 3c 28 00 75 5f 48 83 7b 78 00 0f 84 d0 fe ff ff e8 f4 77 ab fd 90 <0f> 0b e8 ec 77 ab fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900030a7bf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802a5b0b00 RCX: 0000000000000000
RDX: ffff888034c28000 RSI: ffffffff845b672c RDI: ffff88802a5b0b78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed10069c21c6
R10: ffff888034e10e37 R11: 0000000000000000 R12: ffffc900030a7c30
R13: ffff88802a5b0b00 R14: dead000000000100 R15: ffff888034e10918
FS:  0000555561eca500(0000) GS:ffff8881246de000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5116d1e000 CR3: 000000005cd65000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_put_super+0x462/0x670 fs/gfs2/super.c:636
 generic_shutdown_super+0x15f/0x360 fs/super.c:643
 kill_block_super+0x3b/0xa0 fs/super.c:1722
 gfs2_kill_sb+0x4a9/0x590 fs/gfs2/ops_fstype.c:1797
 deactivate_locked_super+0xc1/0x1b0 fs/super.c:474
 deactivate_super fs/super.c:507 [inline]
 deactivate_super+0xe7/0x110 fs/super.c:503
 cleanup_mnt+0x21f/0x450 fs/namespace.c:1318
 task_work_run+0x150/0x240 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:44 [inline]
 exit_to_user_mode_loop+0x100/0x4b0 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x4fe/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcfd559bf17
Code: a2 c7 05 7c 96 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:00007ffdfd05f7a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fcfd560471f RCX: 00007fcfd559bf17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdfd05f860
RBP: 00007ffdfd05f860 R08: 00007ffdfd060860 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfd0608f0
R13: 00007fcfd560471f R14: 000000000005b6a6 R15: 00007ffdfd060930
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 78 ab fd 48 8b 5c 24 38 48 8d 7b 78 48 89 f8 48 c1 e8 03 80 3c 28 00 75 5f 48 83 7b 78 00 0f 84 d0 fe ff ff e8 f4 77 ab fd 90 <0f> 0b e8 ec 77 ab fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc900030a7bf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802a5b0b00 RCX: 0000000000000000
RDX: ffff888034c28000 RSI: ffffffff845b672c RDI: ffff88802a5b0b78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed10069c21c6
R10: ffff888034e10e37 R11: 0000000000000000 R12: ffffc900030a7c30
R13: ffff88802a5b0b00 R14: dead000000000100 R15: ffff888034e10918
FS:  0000555561eca500(0000) GS:ffff8881246de000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff295fff000 CR3: 000000005cd65000 CR4: 0000000000350ef0