------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 13210 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: 67 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 84 67 ab fd 90 <0f> 0b e8 7c 67 ab fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000e52fbf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88814da42e00 RCX: 0000000000000000
RDX: ffff88802e008000 RSI: ffffffff845b72bc RDI: ffff88814da42e78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed10067241c6
R10: ffff888033920e37 R11: 0000000000000000 R12: ffffc9000e52fc30
R13: ffff88814da42e00 R14: dead000000000100 R15: ffff888033920918
FS:  000055555d22a500(0000) GS:ffff8881245dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000001c0 CR3: 0000000032c7e000 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: 0033:0x7f7b0719c117
Code: a2 c7 05 7c 94 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:00007ffe1d3f62f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7b0720471f RCX: 00007f7b0719c117
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe1d3f63b0
RBP: 00007ffe1d3f63b0 R08: 00007ffe1d3f73b0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe1d3f7440
R13: 00007f7b0720471f R14: 0000000000142d57 R15: 00007ffe1d3f7480
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 67 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 84 67 ab fd 90 <0f> 0b e8 7c 67 ab fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000e52fbf8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88814da42e00 RCX: 0000000000000000
RDX: ffff88802e008000 RSI: ffffffff845b72bc RDI: ffff88814da42e78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed10067241c6
R10: ffff888033920e37 R11: 0000000000000000 R12: ffffc9000e52fc30
R13: ffff88814da42e00 R14: dead000000000100 R15: ffff888033920918
FS:  000055555d22a500(0000) GS:ffff8881245dc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f44ee568e9c CR3: 0000000032c7e000 CR4: 0000000000350ef0