gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: can't create logd thread: -4
gfs2: fsid=syz:syz.0: G:  s:UN n:2/24a0 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: 8812 Comm: syz.4.542 Not tainted syzkaller #0 PREEMPT(full) 
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:ffffc9000bbef708 EFLAGS: 00010246
RAX: e036c76ead021600 RBX: ffff888055f1a4f8 RCX: 0000000000080000
RDX: ffffc9000db92000 RSI: 0000000000027825 RDI: 0000000000027826
RBP: ffffc9000bbef870 R08: ffffc9000bbeefc7 R09: 1ffff9200177ddf8
R10: dffffc0000000000 R11: fffff5200177ddf9 R12: dffffc0000000000
R13: 0000000000000003 R14: ffff888056ca4000 R15: ffff888055f1a7e8
FS:  00007f1dd23756c0(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3013b9af98 CR3: 00000000668c6000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
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
 init_inodes+0x95/0x320 fs/gfs2/ops_fstype.c:879
 gfs2_fill_super+0x1b1d/0x21b0 fs/gfs2/ops_fstype.c:1290
 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0x92/0x2a0 fs/super.c:1751
 fc_mount fs/namespace.c:1199 [inline]
 do_new_mount_fc fs/namespace.c:3636 [inline]
 do_new_mount+0x302/0xa10 fs/namespace.c:3712
 do_mount fs/namespace.c:4035 [inline]
 __do_sys_mount fs/namespace.c:4224 [inline]
 __se_sys_mount+0x313/0x410 fs/namespace.c:4201
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1dd1590eea
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:00007f1dd2374e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1dd2374ef0 RCX: 00007f1dd1590eea
RDX: 0000200000037f40 RSI: 0000200000037f80 RDI: 00007f1dd2374eb0
RBP: 0000200000037f40 R08: 00007f1dd2374ef0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000037f80
R13: 00007f1dd2374eb0 R14: 0000000000037f99 R15: 00002000000000c0
 </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:ffffc9000bbef708 EFLAGS: 00010246
RAX: e036c76ead021600 RBX: ffff888055f1a4f8 RCX: 0000000000080000
RDX: ffffc9000db92000 RSI: 0000000000027825 RDI: 0000000000027826
RBP: ffffc9000bbef870 R08: ffffc9000bbeefc7 R09: 1ffff9200177ddf8
R10: dffffc0000000000 R11: fffff5200177ddf9 R12: dffffc0000000000
R13: 0000000000000003 R14: ffff888056ca4000 R15: ffff888055f1a7e8
FS:  00007f1dd23756c0(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000032000 CR3: 00000000668c6000 CR4: 00000000003526f0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400