general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 7336 Comm: syz-executor.4 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]
RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2787
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ca 33 ea ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 a4 33 ea ff 48 83 3b 00 0f 85 b7 01
RSP: 0018:ffffc90015fe7870 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: ffff88802ab03a80 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888036ef70f2 R08: ffffffff81f48409 R09: ffff88802d1eeb70
R10: ffffed1005a3dd70 R11: 1ffff11005a3dd6e R12: 0000000000000008
R13: 1ffff11006ddee1e R14: ffff88802d1eea48 R15: 0000000000008000
FS:  00007faab1f6a700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc58db15829 CR3: 000000001e7cb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 d_splice_alias+0x122/0x3b0 fs/dcache.c:3182
 lookup_open fs/namei.c:3391 [inline]
 open_last_lookups fs/namei.c:3481 [inline]
 path_openat+0x10e6/0x2df0 fs/namei.c:3711
 do_filp_open+0x264/0x4f0 fs/namei.c:3741
 do_sys_openat2+0x124/0x4e0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_open fs/open.c:1334 [inline]
 __se_sys_open fs/open.c:1330 [inline]
 __x64_sys_open+0x221/0x270 fs/open.c:1330
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faab128c0d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 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:00007faab1f6a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007faab13abf80 RCX: 00007faab128c0d9
RDX: 0000000000000000 RSI: 0000000000002102 RDI: 0000000020000000
RBP: 00007faab12e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcdb42f52f R14: 00007faab1f6a300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:d_flags_for_inode fs/dcache.c:1980 [inline]
RIP: 0010:__d_add+0x5ce/0x800 fs/dcache.c:2787
Code: 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 ca 33 ea ff 48 8b 1b 48 83 c3 08 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 a4 33 ea ff 48 83 3b 00 0f 85 b7 01
RSP: 0018:ffffc90015fe7870 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 0000000000000008 RCX: dffffc0000000000
RDX: ffff88802ab03a80 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888036ef70f2 R08: ffffffff81f48409 R09: ffff88802d1eeb70
R10: ffffed1005a3dd70 R11: 1ffff11005a3dd6e R12: 0000000000000008
R13: 1ffff11006ddee1e R14: ffff88802d1eea48 R15: 0000000000008000
FS:  00007faab1f6a700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc58db15829 CR3: 000000001e7cb000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
   4:	74 08                	je     0xe
   6:	48 89 df             	mov    %rbx,%rdi
   9:	e8 ca 33 ea ff       	callq  0xffea33d8
   e:	48 8b 1b             	mov    (%rbx),%rbx
  11:	48 83 c3 08          	add    $0x8,%rbx
  15:	48 89 d8             	mov    %rbx,%rax
  18:	48 c1 e8 03          	shr    $0x3,%rax
  1c:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  23:	fc ff df
* 26:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2a:	74 08                	je     0x34
  2c:	48 89 df             	mov    %rbx,%rdi
  2f:	e8 a4 33 ea ff       	callq  0xffea33d8
  34:	48 83 3b 00          	cmpq   $0x0,(%rbx)
  38:	0f                   	.byte 0xf
  39:	85                   	.byte 0x85
  3a:	b7 01                	mov    $0x1,%bh