Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffccf99d058 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fe8de731bf8 RCX: 00007fe8de6a56f9
RDX: 00000000000001c0 RSI: 0000200000000440 RDI: 00000000ffffff9c
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007fe8de680037
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 00007fe8de731b60 R15: 0000000000000002
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 297 Comm: syz-executor297 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:configfs_mkdir+0x9c0/0xd90 fs/configfs/dir.c:1455
Code: 48 c1 e8 03 80 3c 10 00 74 08 48 89 df e8 f8 8d d6 ff 48 8b 13 48 8d 7a 04 48 89 f8 48 c1 e8 03 48 bb 00 00 00 00 00 fc ff df <0f> b6 04 18 84 c0 0f 85 4c 03 00 00 44 89 7a 04 48 83 c2 08 48 89
RSP: 0018:ffffc90000bb7ca0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90000bb7e18 R08: ffffc90000bb7d8f R09: ffffc90000bb7d40
R10: dffffc0000000000 R11: fffff52000176fb2 R12: 000000000000ee01
R13: 00000000fffffff4 R14: 1ffff92000176fa4 R15: 0000000000000000
FS:  0000555593133480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd127c926e8 CR3: 0000000120124000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_mkdir+0x42c/0x600 fs/namei.c:3840
 do_mkdirat+0x14c/0x340 fs/namei.c:3862
 __do_sys_mkdirat fs/namei.c:3873 [inline]
 __se_sys_mkdirat fs/namei.c:3871 [inline]
 __x64_sys_mkdirat+0x7b/0x90 fs/namei.c:3871
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fe8de6a56f9
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffccf99d058 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fe8de731bf8 RCX: 00007fe8de6a56f9
RDX: 00000000000001c0 RSI: 0000200000000440 RDI: 00000000ffffff9c
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007fe8de680037
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000002 R14: 00007fe8de731b60 R15: 0000000000000002
Modules linked in:
---[ end trace 640beadab6cfa2b2 ]---
RIP: 0010:configfs_mkdir+0x9c0/0xd90 fs/configfs/dir.c:1455
Code: 48 c1 e8 03 80 3c 10 00 74 08 48 89 df e8 f8 8d d6 ff 48 8b 13 48 8d 7a 04 48 89 f8 48 c1 e8 03 48 bb 00 00 00 00 00 fc ff df <0f> b6 04 18 84 c0 0f 85 4c 03 00 00 44 89 7a 04 48 83 c2 08 48 89
RSP: 0018:ffffc90000bb7ca0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90000bb7e18 R08: ffffc90000bb7d8f R09: ffffc90000bb7d40
R10: dffffc0000000000 R11: fffff52000176fb2 R12: 000000000000ee01
R13: 00000000fffffff4 R14: 1ffff92000176fa4 R15: 0000000000000000
FS:  0000555593133480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd127c926e8 CR3: 0000000120124000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c0 79 93 eb          	sarb   $0xeb,-0x6d(%rcx)
   4:	d5 48 8d 7c 1d 00    	lea    0x0(%rbp,%rbx,1),%r23
   a:	eb 99                	jmp    0xffffffa5
   c:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
* 2a:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 c7 c1 d8 ff ff ff 	mov    $0xffffffffffffffd8,%rcx
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W