general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 5439 Comm: syz-executor.0 Not tainted 6.5.0-rc5-syzkaller-00194-gace0ab3a4b54-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:__lock_acquire+0x105/0x5db0 kernel/locking/lockdep.c:5015
Code: 4d 85 ed 0f 84 cc 0d 00 00 44 8b 35 15 6e 23 0b 45 85 f6 0f 84 45 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 bb 40 00 00 49 81 7d 00 a0 69 48 90 0f 84 1c 0e
RSP: 0018:ffffc90002d7f9e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 1ffff920005aff6d RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8eab9f57 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000018 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f01e25b86c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc9dd91e58 CR3: 000000002a9f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire kernel/locking/lockdep.c:5764 [inline]
 lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5729
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162
 prepare_to_wait+0x47/0x380 kernel/sched/wait.c:269
 nr_accept+0x20d/0x650 net/netrom/af_netrom.c:798
 do_accept+0x3a6/0x570 net/socket.c:1872
 __sys_accept4_file net/socket.c:1913 [inline]
 __sys_accept4+0x99/0x120 net/socket.c:1943
 __do_sys_accept net/socket.c:1960 [inline]
 __se_sys_accept net/socket.c:1957 [inline]
 __x64_sys_accept+0x74/0xb0 net/socket.c:1957
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f01e187cae9
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:00007f01e25b80c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002b
RAX: ffffffffffffffda RBX: 00007f01e199bf80 RCX: 00007f01e187cae9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f01e18c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f01e199bf80 R15: 00007ffdf7ebfdc8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x105/0x5db0 kernel/locking/lockdep.c:5015
Code: 4d 85 ed 0f 84 cc 0d 00 00 44 8b 35 15 6e 23 0b 45 85 f6 0f 84 45 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 bb 40 00 00 49 81 7d 00 a0 69 48 90 0f 84 1c 0e
RSP: 0018:ffffc90002d7f9e8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 1ffff920005aff6d RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8eab9f57 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000018 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f01e25b86c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc9dd91e58 CR3: 000000002a9f8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4d 85 ed             	test   %r13,%r13
   3:	0f 84 cc 0d 00 00    	je     0xdd5
   9:	44 8b 35 15 6e 23 0b 	mov    0xb236e15(%rip),%r14d        # 0xb236e25
  10:	45 85 f6             	test   %r14d,%r14d
  13:	0f 84 45 0e 00 00    	je     0xe5e
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	4c 89 ea             	mov    %r13,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 bb 40 00 00    	jne    0x40ef
  34:	49 81 7d 00 a0 69 48 	cmpq   $0xffffffff904869a0,0x0(%r13)
  3b:	90
  3c:	0f                   	.byte 0xf
  3d:	84 1c 0e             	test   %bl,(%rsi,%rcx,1)