netlink: 'syz-executor.2': attribute type 3 has an invalid length. netlink: 'syz-executor.2': attribute type 2 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: 0 PID: 27072 Comm: syz-executor.2 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'net' (0000000053a1fa91): kobject_add_internal: parent: 'hwsim3045', set: '(null)' RIP: 0010:udp_timeout_obj_to_nlattr+0x77/0x1a0 net/netfilter/nf_conntrack_proto_udp.c:209 Code: 96 85 c7 00 f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 30 9a d4 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RSP: 0018:ffff88802969f3d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b RDX: 0000000000000000 RSI: ffffffff85969d10 RDI: ffff888059b39280 RBP: ffff88802969f460 R08: ffff88809593e6c0 R09: ffff88800ea2a668 R10: ffffed1001d454cc R11: ffff88800ea2a660 R12: 1ffff110052d3e7b R13: ffff888059b39280 R14: ffff88802969f438 R15: dffffc0000000000 FS: 00007f367f3bb700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004e6460 CR3: 00000000812fe000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'loop5' (0000000072b3318f): kobject_uevent_env kobject: 'wlan1440' (000000005d9ea7cb): kobject_add_internal: parent: 'net', set: 'devices' cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424 [inline] cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471 kobject: 'loop5' (0000000072b3318f): fill_kobj_path: path = '/devices/virtual/block/loop5' nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 kobject: 'wlan1440' (000000005d9ea7cb): kobject_uevent_env kobject: 'wlan1440' (000000005d9ea7cb): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim3045/net/wlan1440' kobject: 'queues' (000000009e11c31e): kobject_add_internal: parent: 'wlan1440', set: '' kobject: 'queues' (000000009e11c31e): kobject_uevent_env nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 kobject: 'queues' (000000009e11c31e): kobject_uevent_env: filter function caused the event to drop! sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 kobject: 'rx-0' (00000000d92835d6): kobject_add_internal: parent: 'queues', set: 'queues' __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 kobject: 'rx-0' (00000000d92835d6): kobject_uevent_env kobject: 'rx-0' (00000000d92835d6): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim3045/net/wlan1440/queues/rx-0' __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'tx-0' (00000000ca23b385): kobject_add_internal: parent: 'queues', set: 'queues' RIP: 0033:0x458c29 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:00007f367f3bac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000004 kobject: 'tx-0' (00000000ca23b385): kobject_uevent_env RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f367f3bb6d4 R13: 00000000004c6501 R14: 00000000004dae68 R15: 00000000ffffffff Modules linked in: ---[ end trace 2f371962d6959aaf ]--- kobject: 'tx-0' (00000000ca23b385): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim3045/net/wlan1440/queues/tx-0' RIP: 0010:udp_timeout_obj_to_nlattr+0x77/0x1a0 net/netfilter/nf_conntrack_proto_udp.c:209 kobject: 'tx-1' (0000000036923ad5): kobject_add_internal: parent: 'queues', set: 'queues' Code: 96 85 c7 00 f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 30 9a d4 fb 48 89 d8 48 c1 e8 03 <42> 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RSP: 0018:ffff88802969f3d0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b RDX: 0000000000000000 RSI: ffffffff85969d10 RDI: ffff888059b39280 RBP: ffff88802969f460 R08: ffff88809593e6c0 R09: ffff88800ea2a668 R10: ffffed1001d454cc R11: ffff88800ea2a660 R12: 1ffff110052d3e7b kobject: 'tx-1' (0000000036923ad5): kobject_uevent_env R13: ffff888059b39280 R14: ffff88802969f438 R15: dffffc0000000000 kobject: 'tx-1' (0000000036923ad5): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim3045/net/wlan1440/queues/tx-1' FS: 00007f367f3bb700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'tx-2' (00000000c5866c9e): kobject_add_internal: parent: 'queues', set: 'queues' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'tx-2' (00000000c5866c9e): kobject_uevent_env CR2: 00007f9926acedb8 CR3: 00000000812fe000 CR4: 00000000001406f0 kobject: 'tx-2' (00000000c5866c9e): fill_kobj_path: path = '/devices/virtual/mac80211_hwsim/hwsim3045/net/wlan1440/queues/tx-2' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'tx-3' (00000000bc93a7f2): kobject_add_internal: parent: 'queues', set: 'queues' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'tx-3' (00000000bc93a7f2): kobject_uevent_env