netlink: 'syz-executor.1': attribute type 3 has an invalid length. 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: 20868 Comm: syz-executor.0 Not tainted 5.0.0-rc5+ #70 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__lock_acquire+0x8df/0x4700 kernel/locking/lockdep.c:3215 Code: 28 00 00 00 0f 85 35 27 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 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 dc 27 00 00 49 81 3c 24 20 25 9a 89 0f 84 03 f8 RSP: 0018:ffff888066fc7530 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff888066fc76f8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed100d1ba034 R11: 0000000000000001 R12: 0000000000000018 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880a7b861c0 FS: 00007fbf01e9a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001fbb3c0 CR3: 0000000065414000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x16f/0x3f0 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+0xb9/0x260 kernel/sched/wait.c:366 __skb_wait_for_more_packets+0x1ad/0x5c0 net/core/datagram.c:120 __skb_recv_datagram+0x19f/0x250 net/core/datagram.c:311 skb_recv_datagram+0xc8/0x110 net/core/datagram.c:322 nr_recvmsg+0x131/0x4d0 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_recvmsg+0x273/0x5d0 net/socket.c:2276 __sys_recvmsg+0x102/0x1d0 net/socket.c:2325 __do_sys_recvmsg net/socket.c:2335 [inline] __se_sys_recvmsg net/socket.c:2332 [inline] __x64_sys_recvmsg+0x78/0xb0 net/socket.c:2332 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fbf01e99c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000002000 RSI: 0000000020002740 RDI: 0000000000000006 RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbf01e9a6d4 R13: 00000000004c4b65 R14: 00000000004d85c0 R15: 00000000ffffffff Modules linked in: ---[ end trace 63ef079bc1b17307 ]--- RIP: 0010:__lock_acquire+0x8df/0x4700 kernel/locking/lockdep.c:3215 Code: 28 00 00 00 0f 85 35 27 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 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 dc 27 00 00 49 81 3c 24 20 25 9a 89 0f 84 03 f8 RSP: 0018:ffff888066fc7530 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018 RBP: ffff888066fc76f8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed100d1ba034 R11: 0000000000000001 R12: 0000000000000018 R13: 0000000000000001 R14: 0000000000000000 R15: ffff8880a7b861c0 FS: 00007fbf01e9a700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001fbb3c0 CR3: 0000000065414000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400