kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8702 Comm: syz-executor858 Not tainted 5.5.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x86/0x1bc0 kernel/locking/lockdep.c:3827
Code: 8a 04 30 84 c0 0f 85 4b 12 00 00 83 3d c2 4d e9 07 00 0f 84 76 12 00 00 83 3d 95 af b1 07 00 74 34 48 8b 44 24 10 48 c1 e8 03 <80> 3c 30 00 74 14 48 8b 7c 24 10 e8 ea 51 57 00 48 be 00 00 00 00
RSP: 0018:ffffc90002157ad0 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018
RBP: ffffc90002157c30 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1289115 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88808ffc60c0
FS:  00007f6a28682700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ad7a0 CR3: 000000009f998000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x154/0x250 kernel/locking/lockdep.c:4484
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xa1/0xc0 kernel/locking/spinlock.c:159
 prepare_to_wait+0x55/0x240 kernel/sched/wait.c:244
 nr_accept+0x29d/0x600 net/netrom/af_netrom.c:771
 __sys_accept4_file+0x4f0/0x890 net/socket.c:1745
 __sys_accept4 net/socket.c:1796 [inline]
 __do_sys_accept net/socket.c:1814 [inline]
 __se_sys_accept net/socket.c:1811 [inline]
 __x64_sys_accept+0xa5/0xf0 net/socket.c:1811
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x447fd9
Code: e8 ec 14 03 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 8b 0e fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f6a28681db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002b
RAX: ffffffffffffffda RBX: 00000000006ddc68 RCX: 0000000000447fd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000006ddc60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc6c
R13: 00007ffc4065feef R14: 00007f6a286829c0 R15: 000000000000002d
Modules linked in:
---[ end trace 28a96a3039503b59 ]---
RIP: 0010:__lock_acquire+0x86/0x1bc0 kernel/locking/lockdep.c:3827
Code: 8a 04 30 84 c0 0f 85 4b 12 00 00 83 3d c2 4d e9 07 00 0f 84 76 12 00 00 83 3d 95 af b1 07 00 74 34 48 8b 44 24 10 48 c1 e8 03 <80> 3c 30 00 74 14 48 8b 7c 24 10 e8 ea 51 57 00 48 be 00 00 00 00
RSP: 0018:ffffc90002157ad0 EFLAGS: 00010006
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018
RBP: ffffc90002157c30 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff1289115 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88808ffc60c0
FS:  00007f6a28682700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004ad7a0 CR3: 000000009f998000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400