syzbot

gfs2: fsid=syz:syz.0:  H: s:SH f:H e:0 p:5084 [syz-executor292] __gfs2_lookup+0x83/0x280 fs/gfs2/inode.c:880
gfs2: fsid=syz:syz.0:  H: s:?? f:tenEHW e:0 p:0 [(ended)] psi_task_change+0x1bf/0x2f0 kernel/sched/psi.c:900
general protection fault, probably for non-canonical address 0xfbffadd79731a5dd: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0xdffd8ebcb98d2ee8-0xdffd8ebcb98d2eef]
CPU: 0 PID: 5085 Comm: syz-executor292 Not tainted 6.2.0-rc7-syzkaller-00135-g38c1e0c65865 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1437 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2262 [inline]
RIP: 0010:gfs2_dump_glock+0xcf6/0x1bd0 fs/gfs2/glock.c:2376
Code: e8 ff f6 dc fd 31 ff 89 c3 89 c6 e8 d4 3b f3 fd 84 db 58 0f 84 a4 08 00 00 e8 56 3f f3 fd 4d 8d 74 24 20 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 01 0f 8e c2 0a 00 00 41 0f b7 6c 24
RSP: 0018:ffffc90003f9f248 EFLAGS: 00010217
RAX: 1bffb1d79731a5dd RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888024ec1d40 RSI: ffffffff838db8ba RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffffffff18f3521 R12: dffd8ebcb98d2ecf
R13: ffffffff8a97a980 R14: dffd8ebcb98d2eef R15: dffffc0000000000
FS:  00007f4ee7d82700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ee7d82718 CR3: 0000000020d45000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 gfs2_consist_inode_i+0x104/0x150 fs/gfs2/util.c:465
 gfs2_dirent_scan+0x2f7/0x3a0 fs/gfs2/dir.c:602
 gfs2_dirent_search+0x47d/0x580 fs/gfs2/dir.c:850
 gfs2_dir_search+0x8d/0x2d0 fs/gfs2/dir.c:1650
 gfs2_lookupi+0x481/0x640 fs/gfs2/inode.c:328
 __gfs2_lookup+0x83/0x280 fs/gfs2/inode.c:880
 gfs2_atomic_open+0xde/0x250 fs/gfs2/inode.c:1284
 atomic_open fs/namei.c:3276 [inline]
 lookup_open.isra.0+0xb6c/0x1270 fs/namei.c:3384
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x975/0x2a50 fs/namei.c:3711
 do_filp_open+0x1ba/0x410 fs/namei.c:3741
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0x143/0x1f0 fs/open.c:1337
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f4eefa05a39
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4ee7d82208 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f4eefa9c538 RCX: 00007f4eefa05a39
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 00000000ffffff9c
RBP: 00007f4eefa9c530 R08: 00007f4ee7d82700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4eefa9c53c
R13: 00007ffe0919e95f R14: 00007f4ee7d82300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1437 [inline]
RIP: 0010:dump_holder fs/gfs2/glock.c:2262 [inline]
RIP: 0010:gfs2_dump_glock+0xcf6/0x1bd0 fs/gfs2/glock.c:2376
Code: e8 ff f6 dc fd 31 ff 89 c3 89 c6 e8 d4 3b f3 fd 84 db 58 0f 84 a4 08 00 00 e8 56 3f f3 fd 4d 8d 74 24 20 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 74 08 3c 01 0f 8e c2 0a 00 00 41 0f b7 6c 24
RSP: 0018:ffffc90003f9f248 EFLAGS: 00010217
RAX: 1bffb1d79731a5dd RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888024ec1d40 RSI: ffffffff838db8ba RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 1ffffffff18f3521 R12: dffd8ebcb98d2ecf
R13: ffffffff8a97a980 R14: dffd8ebcb98d2eef R15: dffffc0000000000
FS:  00007f4ee7d82700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4ee7d82718 CR3: 0000000020d45000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	e8 ff f6 dc fd       	callq  0xfddcf704
   5:	31 ff                	xor    %edi,%edi
   7:	89 c3                	mov    %eax,%ebx
   9:	89 c6                	mov    %eax,%esi
   b:	e8 d4 3b f3 fd       	callq  0xfdf33be4
  10:	84 db                	test   %bl,%bl
  12:	58                   	pop    %rax
  13:	0f 84 a4 08 00 00    	je     0x8bd
  19:	e8 56 3f f3 fd       	callq  0xfdf33f74
  1e:	4d 8d 74 24 20       	lea    0x20(%r12),%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	74 08                	je     0x3b
  33:	3c 01                	cmp    $0x1,%al
  35:	0f 8e c2 0a 00 00    	jle    0xafd
  3b:	41                   	rex.B
  3c:	0f                   	.byte 0xf
  3d:	b7 6c                	mov    $0x6c,%bh
  3f:	24                   	.byte 0x24