gfs2: fsid=syz:syz.s:  H: s:SH f:H e:0 p:6601 [syz.0.47] __gfs2_lookup+0xac/0x2a0 fs/gfs2/inode.c:990
gfs2: fsid=syz:syz.s:  H: s:SH f: e:0 p:6601 [syz.0.47] __gfs2_lookup+0xac/0x2a0 fs/gfs2/inode.c:990
Oops: general protection fault, probably for non-canonical address 0xe8207998293d9178: 0000 [#1] SMP KASAN PTI
KASAN: maybe wild-memory-access in range [0x4103ecc149ec8bc0-0x4103ecc149ec8bc7]
CPU: 1 UID: 0 PID: 6604 Comm: syz.0.47 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:string_nocheck lib/vsprintf.c:655 [inline]
RIP: 0010:string+0x1bb/0x2b0 lib/vsprintf.c:737
Code: d8 85 f6 eb b3 41 c1 fd 10 4c 89 6c 24 10 49 8d 5d ff 45 31 ed 4b 8d 3c 2c 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 75 60 4b 8d 2c 2e 47 0f b6 3c 2c 31 ff 44 89 fe
RSP: 0018:ffffc90003b7efc0 EFLAGS: 00010006
RAX: 08207d98293d9178 RBX: 00000000fffffffe RCX: dffffc0000000000
RDX: ffff888028e98000 RSI: 00000000ffff0a00 RDI: 4103ecc149ec8bc1
RBP: ffffffff8c19223e R08: ffff888028e98000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 4103ecc149ec8bc1
R13: 0000000000000000 R14: ffffc90003b7f378 R15: 0000000000000030
FS:  00007f0755ae06c0(0000) GS:ffff888125560000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0754be7ac0 CR3: 0000000037b34000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 vsnprintf+0x739/0xee0 lib/vsprintf.c:2948
 va_format lib/vsprintf.c:1723 [inline]
 pointer+0x9b7/0x11f0 lib/vsprintf.c:2569
 vsnprintf+0x614/0xee0 lib/vsprintf.c:2952
 vprintk_store+0x371/0xd50 kernel/printk/printk.c:2307
 vprintk_emit+0x192/0x560 kernel/printk/printk.c:2455
 _printk+0xdd/0x130 kernel/printk/printk.c:2504
 gfs2_print_dbg+0x1c0/0x1d0 fs/gfs2/glock.c:1396
 dump_holder fs/gfs2/glock.c:2244 [inline]
 gfs2_dump_glock+0x13e5/0x1a60 fs/gfs2/glock.c:2353
 gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:346
 gfs2_dirent_scan+0x545/0x690 fs/gfs2/dir.c:-1
 gfs2_dir_read+0x78e/0x1760 fs/gfs2/dir.c:1600
 gfs2_readdir+0x169/0x1e0 fs/gfs2/file.c:116
 iterate_dir+0x399/0x570 fs/readdir.c:108
 __do_sys_getdents64 fs/readdir.c:412 [inline]
 __se_sys_getdents64+0xf1/0x280 fs/readdir.c:397
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0754b9a379
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0755ae0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9
RAX: ffffffffffffffda RBX: 00007f0754df6090 RCX: 00007f0754b9a379
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f0754c2dd68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0754df6128 R14: 00007f0754df6090 R15: 00007ffc30511d78
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:string_nocheck lib/vsprintf.c:655 [inline]
RIP: 0010:string+0x1bb/0x2b0 lib/vsprintf.c:737
Code: d8 85 f6 eb b3 41 c1 fd 10 4c 89 6c 24 10 49 8d 5d ff 45 31 ed 4b 8d 3c 2c 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 75 60 4b 8d 2c 2e 47 0f b6 3c 2c 31 ff 44 89 fe
RSP: 0018:ffffc90003b7efc0 EFLAGS: 00010006
RAX: 08207d98293d9178 RBX: 00000000fffffffe RCX: dffffc0000000000
RDX: ffff888028e98000 RSI: 00000000ffff0a00 RDI: 4103ecc149ec8bc1
RBP: ffffffff8c19223e R08: ffff888028e98000 R09: 0000000000000008
R10: 0000000000000007 R11: 0000000000000000 R12: 4103ecc149ec8bc1
R13: 0000000000000000 R14: ffffc90003b7f378 R15: 0000000000000030
FS:  00007f0755ae06c0(0000) GS:ffff888125560000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0754be7ac0 CR3: 0000000037b34000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	d8 85 f6 eb b3 41    	fadds  0x41b3ebf6(%rbp)
   6:	c1 fd 10             	sar    $0x10,%ebp
   9:	4c 89 6c 24 10       	mov    %r13,0x10(%rsp)
   e:	49 8d 5d ff          	lea    -0x1(%r13),%rbx
  12:	45 31 ed             	xor    %r13d,%r13d
  15:	4b 8d 3c 2c          	lea    (%r12,%r13,1),%rdi
  19:	48 89 f8             	mov    %rdi,%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:	75 60                	jne    0x92
  32:	4b 8d 2c 2e          	lea    (%r14,%r13,1),%rbp
  36:	47 0f b6 3c 2c       	movzbl (%r12,%r13,1),%r15d
  3b:	31 ff                	xor    %edi,%edi
  3d:	44 89 fe             	mov    %r15d,%esi