Oops: general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f]
CPU: 1 UID: 0 PID: 11940 Comm: syz.5.1780 Not tainted 6.13.0-rc2-syzkaller-00130-g150b567e0d57 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 0a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 47 32 93 0f 84
RSP: 0018:ffffc9000d0b7a10 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000029 RSI: 1ffff92001a16f54 RDI: 0000000000000148
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff901cc2d7 R11: 0000000000000003 R12: 0000000000000148
R13: ffff88801efdda00 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fbdb98196c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8998562198 CR3: 00000000483d4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
 kernfs_dop_revalidate+0x39e/0x5a0 fs/kernfs/dir.c:1141
 d_revalidate fs/namei.c:927 [inline]
 d_revalidate fs/namei.c:924 [inline]
 lookup_dcache+0xbf/0x130 fs/namei.c:1655
 lookup_one_qstr_excl+0x2c/0x190 fs/namei.c:1677
 filename_create+0x1ed/0x530 fs/namei.c:4081
 do_mknodat+0x18e/0x5d0 fs/namei.c:4226
 __do_sys_mknod fs/namei.c:4272 [inline]
 __se_sys_mknod fs/namei.c:4270 [inline]
 __x64_sys_mknod+0x87/0xb0 fs/namei.c:4270
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbdb8985d19
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:00007fbdb9819038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fbdb8b76080 RCX: 00007fbdb8985d19
RDX: 0000000000000100 RSI: 0000000000001007 RDI: 0000000020000000
RBP: 00007fbdb8a01a20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbdb8b76080 R15: 00007ffc67f31998
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089
Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 0a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 47 32 93 0f 84
RSP: 0018:ffffc9000d0b7a10 EFLAGS: 00010002
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000029 RSI: 1ffff92001a16f54 RDI: 0000000000000148
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff901cc2d7 R11: 0000000000000003 R12: 0000000000000148
R13: ffff88801efdda00 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fbdb98196c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8998562198 CR3: 00000000483d4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	08 84 d2 0f 85 15 14 	or     %al,0x1415850f(%rdx,%rdx,8)
   7:	00 00                	add    %al,(%rax)
   9:	44 8b 0d 0a 00 a7 0e 	mov    0xea7000a(%rip),%r9d        # 0xea7001a
  10:	45 85 c9             	test   %r9d,%r9d
  13:	0f 84 b4 0e 00 00    	je     0xecd
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 e2             	mov    %r12,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 96 2c 00 00    	jne    0x2cca
  34:	49 8b 04 24          	mov    (%r12),%rax
  38:	48 3d a0 47 32 93    	cmp    $0xffffffff933247a0,%rax
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84