device bridge44 entered promiscuous mode
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: 8102 Comm: kworker/0:3 Not tainted 4.19.96-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: krxrpcd rxrpc_peer_keepalive_worker
RIP: 0010:selinux_socket_sendmsg+0x22/0x40 security/selinux/hooks.c:4911
Code: c3 e8 a2 7c 7d fe eb e8 55 48 89 e5 53 48 89 fb e8 b3 e3 45 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 11 48 8b 7b 20 be 04 00 00 00 e8 0a fc ff ff 5b 5d
RSP: 0018:ffff88805445f9f0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8366e7f5
RDX: 0000000000000004 RSI: ffffffff8325320d RDI: 0000000000000020
RBP: ffff88805445f9f8 R08: ffff888054454200 R09: ffff888054454ac8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88805445fb20 R14: ffff88805445fb20 R15: 000000000000001d
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004d8ed0 CR3: 000000008c038000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 security_socket_sendmsg+0x77/0xc0 security/security.c:1417
 sock_sendmsg+0x45/0x130 net/socket.c:629
 kernel_sendmsg+0x44/0x50 net/socket.c:640
 rxrpc_send_keepalive+0x1ff/0x8e0 net/rxrpc/output.c:658
 rxrpc_peer_keepalive_dispatch net/rxrpc/peer_event.c:369 [inline]
 rxrpc_peer_keepalive_worker+0x7be/0xd02 net/rxrpc/peer_event.c:430
 process_one_work+0x989/0x1750 kernel/workqueue.c:2153
 worker_thread+0x98/0xe40 kernel/workqueue.c:2296
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace e0d0c970448e519a ]---
RIP: 0010:selinux_socket_sendmsg+0x22/0x40 security/selinux/hooks.c:4911
Code: c3 e8 a2 7c 7d fe eb e8 55 48 89 e5 53 48 89 fb e8 b3 e3 45 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 11 48 8b 7b 20 be 04 00 00 00 e8 0a fc ff ff 5b 5d
RSP: 0018:ffff88805445f9f0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8366e7f5
netlink: 'syz-executor.0': attribute type 25 has an invalid length.
RDX: 0000000000000004 RSI: ffffffff8325320d RDI: 0000000000000020
RBP: ffff88805445f9f8 R08: ffff888054454200 R09: ffff888054454ac8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88805445fb20 R14: ffff88805445fb20 R15: 000000000000001d
FS:  0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000af0a10 CR3: 0000000084e97000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
device bridge44 left promiscuous mode
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400