IPVS: ftp: loaded support on port[0] = 21
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: 0 PID: 20512 Comm: syz-executor3 Not tainted 5.0.0-rc3+ #21
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x904/0x4a30 kernel/locking/lockdep.c:3215
Code: 28 00 00 00 0f 85 32 29 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 2d 2c 00 00 49 81 3b a0 54 9b 8a 0f 84 09 f8 ff
RSP: 0018:ffff88806ccaf390 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff88806ccaf618 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000018 R12: ffff88805e8380c0
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
FS:  00007fc94cc5b700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070e6b4 CR3: 0000000097941000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x1db/0x570 kernel/locking/lockdep.c:3841
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:152
 finish_wait+0x117/0x490 kernel/sched/wait.c:366
 __skb_wait_for_more_packets+0x30c/0x800 net/core/datagram.c:120
 __skb_recv_datagram+0x20a/0x300 net/core/datagram.c:311
 skb_recv_datagram+0xec/0x140 net/core/datagram.c:322
 nr_recvmsg+0x13b/0x570 net/netrom/af_netrom.c:1163
 sock_recvmsg_nosec net/socket.c:794 [inline]
 sock_recvmsg net/socket.c:801 [inline]
 sock_recvmsg+0xd0/0x110 net/socket.c:797
 __sys_recvfrom+0x30b/0x5d0 net/socket.c:1845
 __do_sys_recvfrom net/socket.c:1863 [inline]
 __se_sys_recvfrom net/socket.c:1859 [inline]
 __x64_sys_recvfrom+0xe1/0x1a0 net/socket.c:1859
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458099
Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fc94cc5ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000458099
RDX: 0000000000000020 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 000000000073c040 R08: 0000000020000240 R09: 0000000000000014
R10: 92055f85fa465722 R11: 0000000000000246 R12: 00007fc94cc5b6d4
R13: 00000000004c4d2a R14: 00000000004d86a0 R15: 00000000ffffffff
Modules linked in:
---[ end trace ce0612b323edd7a2 ]---
RIP: 0010:__lock_acquire+0x904/0x4a30 kernel/locking/lockdep.c:3215
Code: 28 00 00 00 0f 85 32 29 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 2d 2c 00 00 49 81 3b a0 54 9b 8a 0f 84 09 f8 ff
RSP: 0018:ffff88806ccaf390 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff88806ccaf618 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000018 R12: ffff88805e8380c0
R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000000
FS:  00007fc94cc5b700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000070e6b4 CR3: 0000000097941000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400