gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: G:  s:UN n:2/922 f:an t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:246!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 27798 Comm: syz.1.4755 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246
Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f
RSP: 0018:ffffc90003d1f9a8 EFLAGS: 00010246
RAX: b1bb76471ceed700 RBX: ffff8880778cea40 RCX: 0000000000080000
RDX: ffffc90010d59000 RSI: 0000000000039eab RDI: 0000000000039eac
RBP: ffffc90003d1fb10 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa948 R12: dffffc0000000000
R13: 0000000000000003 R14: ffff888076f74000 R15: ffff8880778ced30
FS:  00007fb944d996c0(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000031000 CR3: 000000005220e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 gfs2_glock_put_eventually fs/gfs2/super.c:1170 [inline]
 gfs2_evict_inode+0xae7/0x1000 fs/gfs2/super.c:1445
 evict+0x5f4/0xae0 fs/inode.c:837
 gfs2_put_super+0x2f7/0x860 fs/gfs2/super.c:615
 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+0x425/0x4c0 fs/namespace.c:1318
 task_work_run+0x1d4/0x260 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+0xff/0x4f0 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+0x2d0/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb943f90eea
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb944d98e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 00007fb944d98ef0 RCX: 00007fb943f90eea
RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007fb944d98eb0
RBP: 0000200000000400 R08: 00007fb944d98ef0 R09: 0000000000210401
R10: 0000000000210401 R11: 0000000000000246 R12: 0000200000012500
R13: 00007fb944d98eb0 R14: 00000000000126a9 R15: 0000200000000440
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__gfs2_glock_put+0x31b/0x370 fs/gfs2/glock.c:246
Code: 3f 48 89 de e8 26 12 ff ff eb 26 e8 cf e2 c0 fd e9 5a fe ff ff e8 c5 e2 c0 fd 31 ff 48 89 de ba 01 00 00 00 e8 96 e1 ff ff 90 <0f> 0b e8 ae e2 c0 fd 31 f6 65 ff 0d 75 da 9e 0e 40 0f 94 c5 40 0f
RSP: 0018:ffffc90003d1f9a8 EFLAGS: 00010246
RAX: b1bb76471ceed700 RBX: ffff8880778cea40 RCX: 0000000000080000
RDX: ffffc90010d59000 RSI: 0000000000039eab RDI: 0000000000039eac
RBP: ffffc90003d1fb10 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfa948 R12: dffffc0000000000
R13: 0000000000000003 R14: ffff888076f74000 R15: ffff8880778ced30
FS:  00007fb944d996c0(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2eb6b0 CR3: 000000005220e000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400