general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 8149 Comm: syz-executor.4 Tainted: G        W         5.10.209-syzkaller-00001-ge7daca75b4c3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline]
RIP: 0010:atomic_open fs/namei.c:3136 [inline]
RIP: 0010:lookup_open fs/namei.c:3225 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3323 [inline]
RIP: 0010:path_openat+0x17ab/0x3000 fs/namei.c:3512
Code: b6 04 30 84 c0 0f 85 d9 07 00 00 48 8b 44 24 30 80 60 01 f8 e9 69 ee ff ff e8 d1 03 b7 ff 4c 8b 64 24 20 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 8f 07 00 00 41 8b 1f be 00 00 70 00 21
RSP: 0018:ffffc90000c57920 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888116e67398 RCX: 0000000000040000
RDX: ffffc90004c3a000 RSI: 00000000000001d4 RDI: 00000000000001d5
RBP: ffffc90000c57b50 R08: ffffffff81b65c1b R09: ffffed1036372e50
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881b1b97250
R13: 0000000000008000 R14: dffffc0000000000 R15: 0000000000000001
FS:  00007f0fc75866c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0fc7586d58 CR3: 00000001ad66e000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_filp_open+0x21c/0x460 fs/namei.c:3542
 do_sys_openat2+0x13f/0x6f0 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_openat fs/open.c:1249 [inline]
 __se_sys_openat fs/open.c:1244 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1244
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xc6
RIP: 0033:0x7f0fc8825da9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0fc75860c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f0fc8954050 RCX: 00007f0fc8825da9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: ffffffffffffff9c
RBP: 00007f0fc887247a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0fc8954050 R15: 00007ffdb7a83028
Modules linked in:
---[ end trace 3cf93fc25d767bed ]---
RIP: 0010:__d_entry_type include/linux/dcache.h:400 [inline]
RIP: 0010:d_is_miss include/linux/dcache.h:405 [inline]
RIP: 0010:d_is_negative include/linux/dcache.h:451 [inline]
RIP: 0010:atomic_open fs/namei.c:3136 [inline]
RIP: 0010:lookup_open fs/namei.c:3225 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3323 [inline]
RIP: 0010:path_openat+0x17ab/0x3000 fs/namei.c:3512
Code: b6 04 30 84 c0 0f 85 d9 07 00 00 48 8b 44 24 30 80 60 01 f8 e9 69 ee ff ff e8 d1 03 b7 ff 4c 8b 64 24 20 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 8f 07 00 00 41 8b 1f be 00 00 70 00 21
RSP: 0018:ffffc90000c57920 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888116e67398 RCX: 0000000000040000
RDX: ffffc90004c3a000 RSI: 00000000000001d4 RDI: 00000000000001d5
RBP: ffffc90000c57b50 R08: ffffffff81b65c1b R09: ffffed1036372e50
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881b1b97250
R13: 0000000000008000 R14: dffffc0000000000 R15: 0000000000000001
FS:  00007f0fc75866c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0fc7586d58 CR3: 00000001ad66e000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b6 04                	mov    $0x4,%dh
   2:	30 84 c0 0f 85 d9 07 	xor    %al,0x7d9850f(%rax,%rax,8)
   9:	00 00                	add    %al,(%rax)
   b:	48 8b 44 24 30       	mov    0x30(%rsp),%rax
  10:	80 60 01 f8          	andb   $0xf8,0x1(%rax)
  14:	e9 69 ee ff ff       	jmp    0xffffee82
  19:	e8 d1 03 b7 ff       	call   0xffb703ef
  1e:	4c 8b 64 24 20       	mov    0x20(%rsp),%r12
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 8f 07 00 00    	jne    0x7c6
  37:	41 8b 1f             	mov    (%r15),%ebx
  3a:	be 00 00 70 00       	mov    $0x700000,%esi
  3f:	21                   	.byte 0x21