gfs2: fsid=syz:syz.0: new: gfs2_reconfigure+0x715/0xcd0 fs/gfs2/ops_fstype.c:1587
gfs2: fsid=syz:syz.0: pid: 4656
gfs2: fsid=syz:syz.0: lock type: 1 req lock state : 3
gfs2: fsid=syz:syz.0: G:  s:SH n:1/2 f:qb t:SH d:EX/0 a:0 v:0 r:4 m:20 p:0
gfs2: fsid=syz:syz.0:  H: s:SH f:eEH e:0 p:4656 [syz.0.69] gfs2_fill_super+0x17f7/0x1f80 fs/gfs2/ops_fstype.c:1266
------------[ cut here ]------------
kernel BUG at fs/gfs2/glock.c:1560!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4656 Comm: syz.0.69 Not tainted 6.1.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0x1207/0x14e0 fs/gfs2/glock.c:1585
Code: ef 99 45 fe 41 0f b7 0e 48 c7 c7 e0 17 d2 8a 4c 89 fe 89 da e8 ca cc 7f 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 c9 7d ff ff <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 59 ef ff ff 4c 89 ff
RSP: 0018:ffffc90005357af0 EFLAGS: 00010246
RAX: 7e5aea5a550d4b00 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90005499000 RSI: 0000000000013fc8 RDI: 0000000000013fc9
RBP: ffff8880713189e0 R08: dffffc0000000000 R09: fffffbfff1c3e976
R10: fffffbfff1c3e976 R11: 1ffffffff1c3e975 R12: ffff888079f711b8
R13: 0000000000000000 R14: ffffc90005357ca2 R15: ffff888079f71270
FS:  00007f6935a606c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000021000 CR3: 0000000056348000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline]
 gfs2_freeze_lock_shared+0x5f/0xc0 fs/gfs2/util.c:108
 gfs2_reconfigure+0x715/0xcd0 fs/gfs2/ops_fstype.c:1587
 reconfigure_super+0x219/0x880 fs/super.c:977
 do_remount fs/namespace.c:2719 [inline]
 path_mount+0xdfd/0x1010 fs/namespace.c:3385
 do_mount fs/namespace.c:3406 [inline]
 __do_sys_mount fs/namespace.c:3614 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3591
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6934b9038a
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:00007f6935a5fe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6935a5fef0 RCX: 00007f6934b9038a
RDX: 00002000000000c0 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 00002000000000c0 R08: 00007f6935a5fef0 R09: 0000000001a4a438
R10: 0000000001a4a438 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007f6935a5feb0 R14: 0000000000000000 R15: 0000200000000000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:add_to_queue fs/gfs2/glock.c:1560 [inline]
RIP: 0010:gfs2_glock_nq+0x1207/0x14e0 fs/gfs2/glock.c:1585
Code: ef 99 45 fe 41 0f b7 0e 48 c7 c7 e0 17 d2 8a 4c 89 fe 89 da e8 ca cc 7f 06 31 ff 48 8b 74 24 08 ba 01 00 00 00 e8 c9 7d ff ff <0f> 0b 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 59 ef ff ff 4c 89 ff
RSP: 0018:ffffc90005357af0 EFLAGS: 00010246
RAX: 7e5aea5a550d4b00 RBX: 0000000000000001 RCX: 0000000000080000
RDX: ffffc90005499000 RSI: 0000000000013fc8 RDI: 0000000000013fc9
RBP: ffff8880713189e0 R08: dffffc0000000000 R09: fffffbfff1c3e976
R10: fffffbfff1c3e976 R11: 1ffffffff1c3e975 R12: ffff888079f711b8
R13: 0000000000000000 R14: ffffc90005357ca2 R15: ffff888079f71270
FS:  00007f6935a606c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000021000 CR3: 0000000056348000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400