gfs2: fsid=syz:syz.0:  H: s:UN f: e:0 p:0 [(ended)] 0x0
Oops: general protection fault, probably for non-canonical address 0xdffffc0020000004: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: probably user-memory-access in range [0x0000000100000020-0x0000000100000027]
CPU: 0 UID: 0 PID: 5425 Comm: syz.3.17 Not tainted 6.11.0-rc5-syzkaller-00079-g928f79a188aa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1483 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2314 [inline]
RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2430
Code: c6 05 d5 ec 05 0c 01 48 c7 c7 c0 ca 2e 8c be 48 03 00 00 48 c7 c2 00 cb 2e 8c e8 d6 93 95 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00
RSP: 0018:ffffc90004b37260 EFLAGS: 00010202
RAX: ffffffff83da9922 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc9000a7b7000 RSI: 000000000000ed60 RDI: 000000000000ed61
RBP: ffffc90004b37550 R08: ffffffff83da990b R09: 1ffffffff269ef08
R10: dffffc0000000000 R11: fffffbfff269ef09 R12: dffffc0000000000
R13: 0000000100000000 R14: 0000000100000020 R15: 0000000020000004
FS:  00007f2e4a2d26c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2e4a2f2f98 CR3: 0000000023b62000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:457
 gfs2_dirent_scan+0x52b/0x670
 gfs2_dirent_search+0x30e/0x8c0 fs/gfs2/dir.c:853
 gfs2_dir_search+0xb2/0x2f0 fs/gfs2/dir.c:1653
 gfs2_lookupi+0x461/0x5e0 fs/gfs2/inode.c:340
 __gfs2_lookup+0xa4/0x280 fs/gfs2/inode.c:896
 __lookup_slow+0x28c/0x3f0 fs/namei.c:1718
 lookup_slow+0x53/0x70 fs/namei.c:1735
 walk_component+0x2e1/0x410 fs/namei.c:2039
 lookup_last fs/namei.c:2542 [inline]
 path_lookupat+0x16f/0x450 fs/namei.c:2566
 filename_lookup+0x256/0x610 fs/namei.c:2595
 user_path_at+0x3a/0x60 fs/namei.c:3002
 do_mount fs/namespace.c:3809 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x297/0x3c0 fs/namespace.c:3997
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2e49579ef9
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:00007f2e4a2d2038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2e49716058 RCX: 00007f2e49579ef9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000000
RBP: 00007f2e495e793e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2e49716058 R15: 00007ffd8a3f5198
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1483 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2314 [inline]
RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2430
Code: c6 05 d5 ec 05 0c 01 48 c7 c7 c0 ca 2e 8c be 48 03 00 00 48 c7 c2 00 cb 2e 8c e8 d6 93 95 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00
RSP: 0018:ffffc90004b37260 EFLAGS: 00010202
RAX: ffffffff83da9922 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc9000a7b7000 RSI: 000000000000ed60 RDI: 000000000000ed61
RBP: ffffc90004b37550 R08: ffffffff83da990b R09: 1ffffffff269ef08
R10: dffffc0000000000 R11: fffffbfff269ef09 R12: dffffc0000000000
R13: 0000000100000000 R14: 0000000100000020 R15: 0000000020000004
FS:  00007f2e4a2d26c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7f62340000 CR3: 0000000023b62000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c6 05 d5 ec 05 0c 01 	movb   $0x1,0xc05ecd5(%rip)        # 0xc05ecdc
   7:	48 c7 c7 c0 ca 2e 8c 	mov    $0xffffffff8c2ecac0,%rdi
   e:	be 48 03 00 00       	mov    $0x348,%esi
  13:	48 c7 c2 00 cb 2e 8c 	mov    $0xffffffff8c2ecb00,%rdx
  1a:	e8 d6 93 95 fd       	call   0xfd9593f5
  1f:	4d 8d 75 20          	lea    0x20(%r13),%r14
  23:	4d 89 f7             	mov    %r14,%r15
  26:	49 c1 ef 03          	shr    $0x3,%r15
* 2a:	43 0f b6 04 27       	movzbl (%r15,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 b6 06 00 00    	jne    0x6ed
  37:	41 0f b7 1e          	movzwl (%r14),%ebx
  3b:	89 de                	mov    %ebx,%esi
  3d:	81                   	.byte 0x81
  3e:	e6 00                	out    %al,$0x0