audit: type=1400 audit(1580252831.231:36): avc: denied { map } for pid=7437 comm="syz-executor221" path="/root/syz-executor221720763" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 audit: type=1400 audit(1580252831.231:37): avc: denied { create } for pid=7437 comm="syz-executor221" 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 invalid opcode: 0000 [#1] PREEMPT SMP KASAN audit: type=1400 audit(1580252831.231:38): avc: denied { write } for pid=7437 comm="syz-executor221" 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 Modules linked in: CPU: 0 PID: 7437 Comm: syz-executor221 Not tainted 4.14.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888077240200 task.stack: ffff888074f88000 RIP: 0010:nft_bitwise_ops+0x5/0x80 RSP: 0018:ffff888074f8f200 EFLAGS: 00010286 RAX: ffffffff88b2fe30 RBX: ffff888074f8f290 RCX: 0000000000000000 RDX: 1ffffffff1165fcd RSI: ffff888074f8f240 RDI: ffff888074f8f290 RBP: ffff888074f8f308 R08: 1ffff1100e9f1e52 R09: ffff888074f8f290 R10: ffffed100e9f1e57 R11: ffff888074f8f2bf R12: ffff8880a11f8dc0 R13: 0000000000000000 R14: ffff888074f8f2e0 R15: ffff888074f8f240 FS: 0000000002652880(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557b767e81b0 CR3: 00000000a0de0000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ctnetlink_parse_nat_setup+0x76/0x4a0 net/netfilter/nf_conntrack_netlink.c:1421 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1491 [inline] ctnetlink_create_conntrack+0x468/0x10c0 net/netfilter/nf_conntrack_netlink.c:1840 ctnetlink_new_conntrack+0x4af/0xcc0 net/netfilter/nf_conntrack_netlink.c:1964 nfnetlink_rcv_msg+0xa08/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432 nfnetlink_rcv+0x1ab/0x1650 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline] netlink_unicast+0x44d/0x650 net/netlink/af_netlink.c:1312 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062 __sys_sendmsg+0xb9/0x140 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2103 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x440239 RSP: 002b:00007fff2668a258 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440239 RDX: 0000000000000000 RSI: 0000000020000640 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ac0 R13: 0000000000401b50 R14: 0000000000000000 R15: 0000000000000000 Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70 f7 4a 85 ff ff ff 00 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 c0 fb RIP: nft_bitwise_ops+0x5/0x80 RSP: ffff888074f8f200 ---[ end trace 1484e40b05d53a17 ]---