gfs2: fsid=syz:syz.0: new: gfs2_reconfigure+0x712/0xcf0 fs/gfs2/ops_fstype.c:1587 gfs2: fsid=syz:syz.0: pid: 7891 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:7891 [syz.6.857] 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: 0 PID: 7891 Comm: syz.6.857 Not tainted 6.1.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 40 c1 50 8b 48 8b 74 24 28 89 da e8 5c d6 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 42 RSP: 0018:ffffc90005837b30 EFLAGS: 00010246 RAX: fea6a5a1c892d900 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004b8a000 RSI: 0000000000018e7b RDI: 0000000000018e7c RBP: ffffc90005837ce2 R08: ffffffff83b67370 R09: fffffbfff1d34036 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100ed30a37 R13: ffff88805242c9e0 R14: ffff8880769851c2 R15: ffffc90005837cd8 FS: 00007f8565da66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30d1fffc CR3: 000000005c6a8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 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 vfs_fsconfig_locked fs/fsopen.c:254 [inline] __do_sys_fsconfig fs/fsopen.c:439 [inline] __se_sys_fsconfig+0x98b/0xec0 fs/fsopen.c:314 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: 0033:0x7f8564f7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007f8565da6038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 00007f8565135f80 RCX: 00007f8564f7e719 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000004 RBP: 00007f8564ff132e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8565135f80 R15: 00007fffbe210288 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 40 c1 50 8b 48 8b 74 24 28 89 da e8 5c d6 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 42 RSP: 0018:ffffc90005837b30 EFLAGS: 00010246 RAX: fea6a5a1c892d900 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004b8a000 RSI: 0000000000018e7b RDI: 0000000000018e7c RBP: ffffc90005837ce2 R08: ffffffff83b67370 R09: fffffbfff1d34036 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100ed30a37 R13: ffff88805242c9e0 R14: ffff8880769851c2 R15: ffffc90005837cd8 FS: 00007f8565da66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30d1fffc CR3: 000000005c6a8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400