general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 1 PID: 18019 Comm: syz-executor.3 Not tainted 5.11.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0xd94/0x54f0 kernel/locking/lockdep.c:4702
Code: 33 0d 41 bf 01 00 00 00 0f 86 8e 00 00 00 89 05 c2 d4 33 0d e9 83 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 0c 30 00 00 49 81 3e c0 a2 61 8e 0f 84 39 f3 ff
RSP: 0018:ffffc9000228f9d8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff88801c4cb780 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  00007f9feb216700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200006c0 CR3: 0000000018807000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire kernel/locking/lockdep.c:5437 [inline]
 lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
 __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:1734
 __sys_accept4+0xb0/0x100 net/socket.c:1785
 __do_sys_accept net/socket.c:1803 [inline]
 __se_sys_accept net/socket.c:1800 [inline]
 __x64_sys_accept+0x71/0xb0 net/socket.c:1800
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e219
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9feb215c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219
RDX: 0000000020000100 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 000000000119c110 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119c0dc
R13: 00007ffce61662bf R14: 00007f9feb2169c0 R15: 000000000119c0dc
Modules linked in:
---[ end trace a9054e9b0c5dad54 ]---
RIP: 0010:__lock_acquire+0xd94/0x54f0 kernel/locking/lockdep.c:4702
Code: 33 0d 41 bf 01 00 00 00 0f 86 8e 00 00 00 89 05 c2 d4 33 0d e9 83 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 0c 30 00 00 49 81 3e c0 a2 61 8e 0f 84 39 f3 ff
RSP: 0018:ffffc9000228f9d8 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff88801c4cb780 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  00007f9feb216700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200006c0 CR3: 0000000018807000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400