------------[ cut here ]------------
kernel BUG at fs/gfs2/super.c:76!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5826 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76
Code: 83 78 00 fd cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 f2 d5 19 fe e9 d8 fd ff ff e8 48 d5 68 07 e8 63 d0 b2 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:ffffc9000408fbc0 EFLAGS: 00010293
RAX: ffffffff840fc8ad RBX: dead000000000122 RCX: ffff8880273c5b80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc9000408fc80 R08: ffff88807c4b4e37 R09: 1ffff1100f8969c6
R10: dffffc0000000000 R11: ffffed100f8969c7 R12: ffff88807c4b4908
R13: dffffc0000000000 R14: ffff888022b9e600 R15: ffff888022b9e678
FS:  0000555556490500(0000) GS:ffff888125928000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555587d2ea28 CR3: 000000005acaa000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_put_super+0x7d9/0x860 fs/gfs2/super.c:636
 generic_shutdown_super+0x135/0x2c0 fs/super.c:643
 kill_block_super+0x44/0x90 fs/super.c:1722
 deactivate_locked_super+0xbc/0x130 fs/super.c:474
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1318
 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:44 [inline]
 exit_to_user_mode_loop+0xed/0x480 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+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f706399bf17
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:00007fffeb95c908 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7063a0471f RCX: 00007f706399bf17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffeb95c9c0
RBP: 00007fffeb95c9c0 R08: 00007fffeb95d9c0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffeb95da50
R13: 00007f7063a0471f R14: 000000000002927a R15: 00007fffeb95da90
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_jindex_free+0x44e/0x450 fs/gfs2/super.c:76
Code: 83 78 00 fd cc 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c e2 fd ff ff e8 f2 d5 19 fe e9 d8 fd ff ff e8 48 d5 68 07 e8 63 d0 b2 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:ffffc9000408fbc0 EFLAGS: 00010293
RAX: ffffffff840fc8ad RBX: dead000000000122 RCX: ffff8880273c5b80
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 00000000ffffffff
RBP: ffffc9000408fc80 R08: ffff88807c4b4e37 R09: 1ffff1100f8969c6
R10: dffffc0000000000 R11: ffffed100f8969c7 R12: ffff88807c4b4908
R13: dffffc0000000000 R14: ffff888022b9e600 R15: ffff888022b9e678
FS:  0000555556490500(0000) GS:ffff888125a28000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa36e56a000 CR3: 000000005acaa000 CR4: 0000000000350ef0