general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 1586 Comm: syz.6.328 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
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:3138 [inline]
RIP: 0010:lookup_open fs/namei.c:3227 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3325 [inline]
RIP: 0010:path_openat+0x1640/0x3040 fs/namei.c:3514
Code: c6 d7 ba ff bb f3 ff ff ff 4c 89 f7 e8 b9 6a 02 00 4c 63 f3 e9 f8 f3 ff ff e8 ac d7 ba ff 4c 8b 6c 24 10 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 29 08 00 00 41 8b 1e be 00 00 70 00 21
RSP: 0018:ffffc90000c979c0 EFLAGS: 00010202
RAX: 0000000000000001 RBX: ffff8881166a9b18 RCX: 0000000000080000
RDX: ffffc90003122000 RSI: 0000000000000199 RDI: 000000000000019a
RBP: ffffc90000c97bb0 R08: ffff8881106455af R09: 1ffff110220c8ab5
R10: dffffc0000000000 R11: ffffed10220c8ab6 R12: 0000000000000002
R13: ffff888110645580 R14: 0000000000000008 R15: dffffc0000000000
FS:  00007fe9d39476c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007000 CR3: 000000010bd71000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 do_filp_open+0x1df/0x400 fs/namei.c:3544
 do_sys_openat2+0x19f/0x750 fs/open.c:1219
 do_sys_open fs/open.c:1235 [inline]
 __do_sys_openat fs/open.c:1251 [inline]
 __se_sys_openat fs/open.c:1246 [inline]
 __x64_sys_openat+0x136/0x160 fs/open.c:1246
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe9d4eece59
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:00007fe9d3947028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe9d5165fa0 RCX: 00007fe9d4eece59
RDX: 0000000000040002 RSI: 0000200000002140 RDI: 0000000000000004
RBP: 00007fe9d4f82e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000102 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe9d5166038 R14: 00007fe9d5165fa0 R15: 00007fff681e2f68
Modules linked in:
---[ end trace 75e45c2c537b85e6 ]---
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:3138 [inline]
RIP: 0010:lookup_open fs/namei.c:3227 [inline]
RIP: 0010:open_last_lookups fs/namei.c:3325 [inline]
RIP: 0010:path_openat+0x1640/0x3040 fs/namei.c:3514
Code: c6 d7 ba ff bb f3 ff ff ff 4c 89 f7 e8 b9 6a 02 00 4c 63 f3 e9 f8 f3 ff ff e8 ac d7 ba ff 4c 8b 6c 24 10 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 29 08 00 00 41 8b 1e be 00 00 70 00 21
RSP: 0018:ffffc90000c979c0 EFLAGS: 00010202

RAX: 0000000000000001 RBX: ffff8881166a9b18 RCX: 0000000000080000
RDX: ffffc90003122000 RSI: 0000000000000199 RDI: 000000000000019a
RBP: ffffc90000c97bb0 R08: ffff8881106455af R09: 1ffff110220c8ab5
R10: dffffc0000000000 R11: ffffed10220c8ab6 R12: 0000000000000002
R13: ffff888110645580 R14: 0000000000000008 R15: dffffc0000000000
FS:  00007fe9d39476c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007000 CR3: 000000010bd71000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	bb f3 ff ff ff       	mov    $0xfffffff3,%ebx
   5:	4c 89 f7             	mov    %r14,%rdi
   8:	e8 b9 6a 02 00       	call   0x26ac6
   d:	4c 63 f3             	movslq %ebx,%r14
  10:	e9 f8 f3 ff ff       	jmp    0xfffff40d
  15:	e8 ac d7 ba ff       	call   0xffbad7c6
  1a:	4c 8b 6c 24 10       	mov    0x10(%rsp),%r13
  1f:	4c 89 f0             	mov    %r14,%rax
  22:	48 c1 e8 03          	shr    $0x3,%rax
* 26:	42 0f b6 04 38       	movzbl (%rax,%r15,1),%eax <-- trapping instruction
  2b:	84 c0                	test   %al,%al
  2d:	0f 85 29 08 00 00    	jne    0x85c
  33:	41 8b 1e             	mov    (%r14),%ebx
  36:	be 00 00 70 00       	mov    $0x700000,%esi
  3b:	21                   	.byte 0x21