check_preemption_disabled: 6 callbacks suppressed BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor0/6141 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 0 PID: 6141 Comm: syz-executor0 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 160db7fe8511ec9e ffff8801d8b77800 ffffffff81d028ed 0000000000000000 ffffffff839fe3a0 ffffffff83cef6a0 ffff8800baf92f80 0000000000000003 ffff8801d8b77840 ffffffff81d62834 ffffffff810002b8 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d4/0x200 lib/smp_processor_id.c:46 [] ? 0xffffffff810002b8 [] __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 [] tcp_try_coalesce+0x249/0x4d0 net/ipv4/tcp_input.c:4278 [] tcp_queue_rcv+0x127/0x720 net/ipv4/tcp_input.c:4485 [] tcp_send_rcvq+0x39b/0x450 net/ipv4/tcp_input.c:4531 [] tcp_sendmsg+0x1e8f/0x2b10 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x2bc/0x4c0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:625 [inline] [] sock_sendmsg+0xca/0x110 net/socket.c:635 [] SYSC_sendto+0x2c8/0x340 net/socket.c:1665 [] SyS_sendto+0x40/0x50 net/socket.c:1633 [] entry_SYSCALL_64_fastpath+0x1c/0x98 TCP: request_sock_TCPv6: Possible SYN flooding on port 20030. Sending cookies. Check SNMP counters. IPv4: Oversized IP packet from 127.0.0.1 IPv4: Oversized IP packet from 127.0.0.1 audit: type=1400 audit(1517376455.145:16): avc: denied { getattr } for pid=6307 comm="syz-executor0" 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 IPv4: Oversized IP packet from 127.0.0.1 binder: 6534:6539 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 6534: binder_alloc_buf, no vma binder: 6534:6542 transaction failed 29189/-3, size 0-0 line 3128 binder: 6534:6542 DecRefs 0 refcount change on invalid ref 1 ret -22 binder: 6534:6542 BC_INCREFS_DONE node 12 has no pending increfs request binder: undelivered TRANSACTION_ERROR: 29189 TCP: request_sock_TCPv6: Possible SYN flooding on port 20006. Sending cookies. Check SNMP counters. device gre0 entered promiscuous mode audit: type=1400 audit(1517376456.625:17): avc: denied { setattr } for pid=6744 comm="syz-executor3" name="comm" dev="proc" ino=13976 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=file permissive=1 audit: type=1400 audit(1517376456.675:18): avc: denied { execute } for pid=6744 comm="syz-executor3" name="comm" dev="proc" ino=13976 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=file permissive=1 IPv4: Oversized IP packet from 127.0.0.1 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=82 sclass=netlink_tcpdiag_socket SELinux: unrecognized netlink message: protocol=4 nlmsg_type=82 sclass=netlink_tcpdiag_socket mmap: syz-executor7 (7021) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. audit: type=1400 audit(1517376458.015:19): avc: denied { set_context_mgr } for pid=7104 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=binder permissive=1 binder: BINDER_SET_CONTEXT_MGR already set binder: 7111:7121 ioctl 40046207 0 returned -16 binder: 7104:7109 BC_CLEAR_DEATH_NOTIFICATION invalid ref 4 binder: 7111:7128 ERROR: BC_REGISTER_LOOPER called without request binder: 7104:7109 got transaction to invalid handle binder: 7104:7109 transaction failed 29201/-22, size 0-0 line 3005 binder_alloc: binder_alloc_mmap_handler: 7104 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 7104:7109 ioctl 40046207 0 returned -16 binder: 7104:7122 BC_CLEAR_DEATH_NOTIFICATION invalid ref 4 binder: 7104:7109 got transaction to invalid handle binder: 7104:7109 transaction failed 29201/-22, size 0-0 line 3005 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder: 7111:7121 transaction failed 29189/-22, size 0-0 line 3005 binder: 7111:7150 got reply transaction with no transaction stack binder: 7111:7150 transaction failed 29201/-71, size 24-8 line 2921 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 binder: 7111:7150 ERROR: BC_REGISTER_LOOPER called without request audit: type=1400 audit(1517376458.235:20): avc: denied { call } for pid=7111 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=binder permissive=1 binder_alloc: 7111: binder_alloc_buf size 2325018492002107392 failed, no address space binder_alloc: allocated: 0 (num: 0 largest: 0), free: 8192 (num: 1 largest: 8192) binder: 7111:7128 transaction failed 29201/-28, size 2325018492002107392-0 line 3128 binder: undelivered TRANSACTION_ERROR: 29201 audit: type=1400 audit(1517376458.665:21): avc: denied { create } for pid=7232 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_crypto_socket permissive=1 binder: BINDER_SET_CONTEXT_MGR already set binder: 7223:7250 ioctl 40046207 0 returned -16 IPVS: Creating netns size=2552 id=9 SELinux: policydb string length -434 does not match expected length 8 SELinux: policydb string length -434 does not match expected length 8 audit: type=1400 audit(1517376461.355:22): avc: denied { ioctl } for pid=7491 comm="syz-executor7" path="socket:[14599]" dev="sockfs" ino=14599 ioctlcmd=8915 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 audit: type=1400 audit(1517376461.525:23): avc: denied { attach_queue } for pid=7530 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=tun_socket permissive=1 device gre0 entered promiscuous mode binder: BINDER_SET_CONTEXT_MGR already set binder: 7646:7668 ioctl 40046207 0 returned -16 audit: type=1326 audit(1517376463.885:24): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8067 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517376464.005:25): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=8067 comm="syz-executor3" exe="/root/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 binder: 8134:8135 ioctl 6 20096000 returned -22 binder: 8134:8135 Acquire 1 refcount change on invalid ref 0 ret -22 binder: 8134:8135 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 8134:8145 ioctl 6 20096000 returned -22