netlink: 'syz-executor.5': attribute type 2 has an invalid length. audit: type=1400 audit(2877694246.230:4756): avc: denied { write } for pid=11057 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access audit: type=1400 audit(2877694246.450:4757): avc: denied { prog_load } for pid=11061 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 11058 Comm: syz-executor.5 Not tainted 4.19.34 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:generic_timeout_obj_to_nlattr+0x77/0x120 net/netfilter/nf_conntrack_proto_generic.c:103 Code: b5 41 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 50 32 d5 fb 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 74 RSP: 0018:ffff88805ba7f3d8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100b74fe7b RCX: ffffc900108d4000 RDX: 000000000002b036 RSI: ffffffff859604f0 RDI: ffff88809887b300 RBP: ffff88805ba7f460 R08: ffff88808f30e680 R09: ffff888060898ea8 R10: ffffed100c1131d4 R11: ffff888060898ea0 R12: 0000000000000000 R13: ffff88805ba7f438 R14: ffff88809887b300 R15: dffffc0000000000 FS: 00007f9549150700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000070d09b CR3: 00000000a8131000 CR4: 00000000001406e0 Call Trace: cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424 [inline] cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471 nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454 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 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x806/0x930 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __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 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:00007f954914fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29 RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000005 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f95491506d4 R13: 00000000004c6501 R14: 00000000004dae68 R15: 00000000ffffffff Modules linked in: ---[ end trace d0d0eeaea640f4ac ]--- RIP: 0010:generic_timeout_obj_to_nlattr+0x77/0x120 net/netfilter/nf_conntrack_proto_generic.c:103 Code: b5 41 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 50 32 d5 fb 4c 89 e0 48 c1 e8 03 <42> 0f b6 14 38 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 74 RSP: 0018:ffff88805ba7f3d8 EFLAGS: 00010246 kobject: 'loop2' (000000006cba5e9a): kobject_uevent_env RAX: 0000000000000000 RBX: 1ffff1100b74fe7b RCX: ffffc900108d4000 kobject: 'loop2' (000000006cba5e9a): fill_kobj_path: path = '/devices/virtual/block/loop2' RDX: 000000000002b036 RSI: ffffffff859604f0 RDI: ffff88809887b300 kobject: 'loop4' (0000000074bed0c4): kobject_uevent_env RBP: ffff88805ba7f460 R08: ffff88808f30e680 R09: ffff888060898ea8 kobject: 'loop4' (0000000074bed0c4): fill_kobj_path: path = '/devices/virtual/block/loop4' R10: ffffed100c1131d4 R11: ffff888060898ea0 R12: 0000000000000000 R13: ffff88805ba7f438 R14: ffff88809887b300 R15: dffffc0000000000 FS: 00007f9549150700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'loop3' (000000007d2c8999): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop3' (000000007d2c8999): fill_kobj_path: path = '/devices/virtual/block/loop3' CR2: 00007f9a4ee02db8 CR3: 00000000a8131000 CR4: 00000000001406f0 audit: type=1400 audit(2877694247.380:4758): avc: denied { prog_load } for pid=11814 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1