general protection fault, probably for non-canonical address 0xf890651fee656797: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xc48348ff732b3cb8-0xc48348ff732b3cbf]
CPU: 0 PID: 6373 Comm: syz.0.96 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:pid_nr include/linux/pid.h:186 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2310 [inline]
RIP: 0010:gfs2_dump_glock+0xe2b/0x1920 fs/gfs2/glock.c:2422
Code: e8 0a 12 3d fe 4c 8b 3b 4d 85 ff 74 33 e8 0d a4 e5 fd 49 8d 9f d0 00 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 fe 06 00 00 48 63 03 48 89 44 24 18 eb 0e
RSP: 0018:ffffc9000c3c72c0 EFLAGS: 00010a02
RAX: 1890691fee656797 RBX: c48348ff732b3cb8 RCX: dffffc0000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c3c75b0 R08: 000000000001ffff R09: 0000000000400000
R10: 0000000000400008 R11: fffffbfff21b28a1 R12: ffffffff839feb4f
R13: ffffffff81f3cda8 R14: 1ffffffff03e79b9 R15: c48348ff732b3be8
FS:  00007f38444876c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001f80 CR3: 000000002efc5000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:446
 gfs2_dirent_scan+0x525/0x650 fs/gfs2/dir.c:602
 gfs2_dirent_search+0x2e1/0x7e0 fs/gfs2/dir.c:850
 gfs2_dir_search+0x4d/0x220 fs/gfs2/dir.c:1650
 gfs2_lookupi+0x3d9/0x5a0 fs/gfs2/inode.c:339
 __gfs2_lookup+0x90/0x270 fs/gfs2/inode.c:896
 __lookup_slow+0x281/0x3b0 fs/namei.c:1702
 lookup_slow+0x53/0x70 fs/namei.c:1719
 walk_component+0x2be/0x3f0 fs/namei.c:2010
 lookup_last fs/namei.c:2467 [inline]
 path_lookupat+0x169/0x440 fs/namei.c:2491
 filename_lookup+0x1f4/0x510 fs/namei.c:2520
 user_path_at_empty+0x42/0x60 fs/namei.c:2917
 user_path_at include/linux/namei.h:57 [inline]
 do_mount fs/namespace.c:3723 [inline]
 __do_sys_mount fs/namespace.c:3935 [inline]
 __se_sys_mount+0x29b/0x3c0 fs/namespace.c:3912
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f384358f749
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:00007f3844487038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f38437e5fa0 RCX: 00007f384358f749
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000200000000240
RBP: 00007f3843613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000208000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f38437e6038 R14: 00007f38437e5fa0 R15: 00007ffd0ff05338
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pid_nr include/linux/pid.h:186 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2310 [inline]
RIP: 0010:gfs2_dump_glock+0xe2b/0x1920 fs/gfs2/glock.c:2422
Code: e8 0a 12 3d fe 4c 8b 3b 4d 85 ff 74 33 e8 0d a4 e5 fd 49 8d 9f d0 00 00 00 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 0f 85 fe 06 00 00 48 63 03 48 89 44 24 18 eb 0e
RSP: 0018:ffffc9000c3c72c0 EFLAGS: 00010a02
RAX: 1890691fee656797 RBX: c48348ff732b3cb8 RCX: dffffc0000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c3c75b0 R08: 000000000001ffff R09: 0000000000400000
R10: 0000000000400008 R11: fffffbfff21b28a1 R12: ffffffff839feb4f
R13: ffffffff81f3cda8 R14: 1ffffffff03e79b9 R15: c48348ff732b3be8
FS:  00007f38444876c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000be2030 CR3: 000000002efc5000 CR4: 00000000003506e0
----------------
Code disassembly (best guess):
   0:	e8 0a 12 3d fe       	call   0xfe3d120f
   5:	4c 8b 3b             	mov    (%rbx),%r15
   8:	4d 85 ff             	test   %r15,%r15
   b:	74 33                	je     0x40
   d:	e8 0d a4 e5 fd       	call   0xfde5a41f
  12:	49 8d 9f d0 00 00 00 	lea    0xd0(%r15),%rbx
  19:	48 89 d8             	mov    %rbx,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	0f b6 04 08          	movzbl (%rax,%rcx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 fe 06 00 00    	jne    0x734
  36:	48 63 03             	movslq (%rbx),%rax
  39:	48 89 44 24 18       	mov    %rax,0x18(%rsp)
  3e:	eb 0e                	jmp    0x4e