gfs2: fsid=syz:syz.0: new: gfs2_reconfigure+0x712/0xcf0 fs/gfs2/ops_fstype.c:1587 gfs2: fsid=syz:syz.0: pid: 5526 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:5526 [syz.0.347] gfs2_fill_super+0x2076/0x2680 fs/gfs2/ops_fstype.c:1266 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1555! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5526 Comm: syz.0.347 Not tainted 6.1.107-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:add_to_queue fs/gfs2/glock.c:1555 [inline] RIP: 0010:gfs2_glock_nq+0x1375/0x1590 fs/gfs2/glock.c:1580 Code: 2b fe 0f b7 4d 00 48 c7 c7 80 b6 50 8b 48 8b 74 24 28 89 da e8 fc ac ed 06 31 ff 48 8b 74 24 10 ba 01 00 00 00 e8 7b 76 ff ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 5d f1 ff ff 48 89 df e8 62 RSP: 0018:ffffc9000313fad0 EFLAGS: 00010246 RAX: 78eb9deb168bba00 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90005b82000 RSI: 0000000000025225 RDI: 0000000000025226 RBP: ffffc9000313fc82 R08: ffffffff83b64900 R09: fffffbfff1d33b4e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100c538237 R13: ffff8880578709e0 R14: ffff8880629c11c2 R15: ffffc9000313fc78 FS: 00007f7abb5446c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ec1fffc CR3: 0000000063313000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 000000000000000a DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_nq_init fs/gfs2/glock.h:255 [inline] gfs2_freeze_lock_shared+0x5f/0xc0 fs/gfs2/util.c:108 gfs2_reconfigure+0x712/0xcf0 fs/gfs2/ops_fstype.c:1587 reconfigure_super+0x43a/0x870 fs/super.c:977 do_remount fs/namespace.c:2707 [inline] path_mount+0xe69/0x1090 fs/namespace.c:3373 do_mount fs/namespace.c:3394 [inline] __do_sys_mount fs/namespace.c:3602 [inline] __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f7aba77b69a 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:00007f7abb543e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f7abb543ef0 RCX: 00007f7aba77b69a RDX: 0000000020000180 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 0000000020000180 R08: 00007f7abb543ef0 R09: 0000000001b404ad R10: 0000000001b404ad R11: 0000000000000246 R12: 0000000020000000 R13: 00007f7abb543eb0 R14: 0000000000000000 R15: 0000000020000040 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:add_to_queue fs/gfs2/glock.c:1555 [inline] RIP: 0010:gfs2_glock_nq+0x1375/0x1590 fs/gfs2/glock.c:1580 Code: 2b fe 0f b7 4d 00 48 c7 c7 80 b6 50 8b 48 8b 74 24 28 89 da e8 fc ac ed 06 31 ff 48 8b 74 24 10 ba 01 00 00 00 e8 7b 76 ff ff <0f> 0b 89 d9 80 e1 07 fe c1 38 c1 0f 8c 5d f1 ff ff 48 89 df e8 62 RSP: 0018:ffffc9000313fad0 EFLAGS: 00010246 RAX: 78eb9deb168bba00 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90005b82000 RSI: 0000000000025225 RDI: 0000000000025226 RBP: ffffc9000313fc82 R08: ffffffff83b64900 R09: fffffbfff1d33b4e R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100c538237 R13: ffff8880578709e0 R14: ffff8880629c11c2 R15: ffffc9000313fc78 FS: 00007f7abb5446c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ec1fffc CR3: 0000000063313000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 000000000000000a DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400