general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 2 PID: 9841 Comm: syz-executor.2 Not tainted 5.7.0-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
RIP: 0010:__lock_acquire+0xe1b/0x48a0 kernel/locking/lockdep.c:4250
Code: 93 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 1b fc 93 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e5 2c 00 00 49 81 3a c0 34 c3 8b 0f 84 b0 f2 ff
RSP: 0018:ffffc900009b7988 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000018 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888016f880c0 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f23d6468700(0000) GS:ffff88802d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc1f82dd28 CR3: 000000001759e000 CR4: 0000000000340ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4959
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x8c/0xbf kernel/locking/spinlock.c:159
 prepare_to_wait+0x7c/0x2b0 kernel/sched/wait.c:244
 nr_accept+0x21f/0x6d0 net/netrom/af_netrom.c:791
 __sys_accept4_file+0x3b2/0x5b0 net/socket.c:1754
 __sys_accept4+0xb0/0x100 net/socket.c:1805
 __do_sys_accept net/socket.c:1824 [inline]
 __se_sys_accept net/socket.c:1821 [inline]
 __x64_sys_accept+0x71/0xb0 net/socket.c:1821
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c879
Code: 1d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 eb b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f23d6467c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002b
RAX: ffffffffffffffda RBX: 000000000074c040 RCX: 000000000045c879
RDX: 0000000020000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00000000006ed5c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f23d64686d4
R13: 0000000000000000 R14: 00000000006ed5c0 R15: 00000000004a99ac
Modules linked in:
---[ end trace 00dbf38fbe01bfe9 ]---
RIP: 0010:__lock_acquire+0xe1b/0x48a0 kernel/locking/lockdep.c:4250
Code: 93 0a 41 be 01 00 00 00 0f 86 ce 0b 00 00 89 05 1b fc 93 0a e9 c3 0b 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 d2 48 c1 ea 03 <80> 3c 02 00 0f 85 e5 2c 00 00 49 81 3a c0 34 c3 8b 0f 84 b0 f2 ff
RSP: 0018:ffffc900009b7988 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000018 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888016f880c0 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f23d6468700(0000) GS:ffff88802d000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc1f82dd28 CR3: 000000001759e000 CR4: 0000000000340ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400