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: 5747 Comm: syz-executor.1 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0xcf0/0x5230 kernel/locking/lockdep.c:4772
Code: 3d 0e 41 bf 01 00 00 00 0f 86 8c 00 00 00 89 05 26 3e 3d 0e e9 81 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 2f 00 00 49 81 3e c0 93 42 8f 0f 84 da f3 ff
RSP: 0018:ffffc900188ff9c8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1b92be2 R11: 0000000000000000 R12: ffff888068d6b880
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  00007f5de3dfd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005635e495cc58 CR3: 000000009013b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire kernel/locking/lockdep.c:5512 [inline]
 lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5477
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
 prepare_to_wait+0x79/0x3f0 kernel/sched/wait.c:259
 nr_accept+0x201/0x640 net/netrom/af_netrom.c:793
 __sys_accept4_file+0x3b2/0x5b0 net/socket.c:1736
 __sys_accept4+0xb0/0x100 net/socket.c:1787
 __do_sys_accept4 net/socket.c:1799 [inline]
 __se_sys_accept4 net/socket.c:1796 [inline]
 __x64_sys_accept4+0x93/0xf0 net/socket.c:1796
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5de3dfd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 0000000020000340 RSI: 0000000020000300 RDI: 0000000000000003
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007fff67704ecf R14: 00007f5de3dfd300 R15: 0000000000022000
Modules linked in:
---[ end trace e502375c3783a705 ]---
RIP: 0010:__lock_acquire+0xcf0/0x5230 kernel/locking/lockdep.c:4772
Code: 3d 0e 41 bf 01 00 00 00 0f 86 8c 00 00 00 89 05 26 3e 3d 0e e9 81 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 2f 00 00 49 81 3e c0 93 42 8f 0f 84 da f3 ff
RSP: 0018:ffffc900188ff9c8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1b92be2 R11: 0000000000000000 R12: ffff888068d6b880
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  00007f5de3dfd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005635e495cc58 CR3: 000000009013b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400