netlink: 14 bytes leftover after parsing attributes in process `syz-executor2'. BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor5/5574 caller is __this_cpu_preempt_check+0x13/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:62 CPU: 1 PID: 5574 Comm: syz-executor5 Not tainted 4.4.105-g8a53962 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 a73add26c9845c66 ffff8801d283f828 ffffffff81cc9b0f 0000000000000001 ffffffff839fd4a0 ffff8801d283f868 ffffffff81d28d18 ffffffff83ced1a0 1ffff1003a507f14 ffff8801d619c240 ffff8801d619d440 Call Trace: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] check_preemption_disabled+0x1b8/0x1f0 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x13/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:62 [] tcp_try_coalesce+0x200/0x4b0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4278 [] tcp_queue_rcv+0xfe/0x720 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4485 [] tcp_send_rcvq+0x391/0x4a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4531 netlink: 14 bytes leftover after parsing attributes in process `syz-executor4'. [] tcp_sendmsg+0x1d1c/0x36a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp.c:1134 [] inet_sendmsg+0x26c/0x430 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:625 [inline] [] sock_sendmsg+0xb5/0xf0 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:635 [] SYSC_sendto+0x267/0x300 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1665 [] SyS_sendto+0x9/0x10 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1633 [] entry_SYSCALL_64_fastpath+0x16/0x76 device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=0 nlmsg_type=18535 sclass=netlink_route_socket SELinux: unrecognized netlink message: protocol=0 nlmsg_type=18535 sclass=netlink_route_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket nla_parse: 2 callbacks suppressed netlink: 14 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor2'. audit: type=1400 audit(1513023102.944:13): avc: denied { create } for pid=7051 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 netlink: 14 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor6'. audit: type=1400 audit(1513023104.124:14): avc: denied { write } for pid=7512 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 audit: type=1400 audit(1513023104.184:15): avc: denied { ioctl } for pid=7512 comm="syz-executor1" path="socket:[14402]" dev="sockfs" ino=14402 ioctlcmd=8946 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 device gre0 entered promiscuous mode device lo entered promiscuous mode SELinux: unrecognized netlink message: protocol=4 nlmsg_type=37532 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=37532 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=21 sclass=netlink_tcpdiag_socket netlink: 14 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor7'. device gre0 entered promiscuous mode audit: type=1400 audit(1513023107.544:16): avc: denied { create } for pid=8853 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_rdma_socket permissive=1 netlink: 14 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor1'. netlink: 14 bytes leftover after parsing attributes in process `syz-executor1'. device gre0 entered promiscuous mode