------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 14981 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 77 9e 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 b4 77 9e fd 90 <0f> 0b e8 ac 77 9e fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000e91fbf0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888035772e00 RCX: 0000000000000000
RDX: ffff8880276bdb80 RSI: ffffffff846a5ecc RDI: ffff888035772e78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100f4b99c6
R10: ffff88807a5cce37 R11: 0000000000000000 R12: ffffc9000e91fc28
R13: ffff888035772e00 R14: dead000000000100 R15: ffff88807a5cc918
FS:  0000555561e6d500(0000) GS:ffff888124439000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb571b25000 CR3: 0000000025c26000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_put_super+0x462/0x670 fs/gfs2/super.c:638
 generic_shutdown_super+0x167/0x360 fs/super.c:646
 kill_block_super+0x3b/0xa0 fs/super.c:1725
 gfs2_kill_sb+0x4a9/0x590 fs/gfs2/ops_fstype.c:1797
 deactivate_locked_super+0xc1/0x1b0 fs/super.c:476
 deactivate_super fs/super.c:509 [inline]
 deactivate_super+0xe7/0x110 fs/super.c:505
 cleanup_mnt+0x21f/0x450 fs/namespace.c:1312
 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:67 [inline]
 exit_to_user_mode_loop+0x100/0x4a0 kernel/entry/common.c:98
 __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 include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x67c/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f23c339da57
Code: a2 c7 05 9c fc 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:00007ffd279f40f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f23c3432048 RCX: 00007f23c339da57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd279f41b0
RBP: 00007ffd279f41b0 R08: 00007ffd279f51b0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd279f5240
R13: 00007f23c3432048 R14: 000000000010785b R15: 00007ffd279f5280
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x40d/0x5b0 fs/gfs2/super.c:76
Code: 77 9e 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 b4 77 9e fd 90 <0f> 0b e8 ac 77 9e fd 48 8b 4c 24 08 48 b8 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000e91fbf0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888035772e00 RCX: 0000000000000000
RDX: ffff8880276bdb80 RSI: ffffffff846a5ecc RDI: ffff888035772e78
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100f4b99c6
R10: ffff88807a5cce37 R11: 0000000000000000 R12: ffffc9000e91fc28
R13: ffff888035772e00 R14: dead000000000100 R15: ffff88807a5cc918
FS:  0000555561e6d500(0000) GS:ffff888124439000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb5727ff000 CR3: 0000000025c26000 CR4: 0000000000350ef0