------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 8519 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 95 a4 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 24 95 a4 fd 90 <0f> 0b e8 1c 95 a4 fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000aef7c18 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888028132800 RCX: 0000000000000000
RDX: ffff88802cd8bc80 RSI: ffffffff841864dc RDI: ffff888028132878
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100ecb61bc
R10: ffff8880765b0de7 R11: 0000000000000001 R12: ffffc9000aef7c50
R13: ffff888028132800 R14: dead000000000100 R15: ffff8880765b08c0
FS:  0000555559929500(0000) GS:ffff888124b0c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9af37fdc64 CR3: 0000000029f09000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_put_super+0x4a9/0x780 fs/gfs2/super.c:636
 generic_shutdown_super+0x156/0x390 fs/super.c:642
 kill_block_super+0x3b/0x90 fs/super.c:1722
 gfs2_kill_sb+0x371/0x420 fs/gfs2/ops_fstype.c:1800
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:473
 deactivate_super fs/super.c:506 [inline]
 deactivate_super+0xde/0x100 fs/super.c:502
 cleanup_mnt+0x225/0x450 fs/namespace.c:1327
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f42b0d902f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 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 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd945e09c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f42b0e11d7d RCX: 00007f42b0d902f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd945e0a80
RBP: 00007ffd945e0a80 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd945e1b10
R13: 00007f42b0e11d7d R14: 0000000000053da4 R15: 00007ffd945e1b50
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 95 a4 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 24 95 a4 fd 90 <0f> 0b e8 1c 95 a4 fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000aef7c18 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888028132800 RCX: 0000000000000000
RDX: ffff88802cd8bc80 RSI: ffffffff841864dc RDI: ffff888028132878
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100ecb61bc
R10: ffff8880765b0de7 R11: 0000000000000001 R12: ffffc9000aef7c50
R13: ffff888028132800 R14: dead000000000100 R15: ffff8880765b08c0
FS:  0000555559929500(0000) GS:ffff888124b0c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9af37fdc64 CR3: 0000000029f09000 CR4: 0000000000350ef0