BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor3/5352 caller is __this_cpu_preempt_check+0x1c/0x20 lib/smp_processor_id.c:62 CPU: 1 PID: 5352 Comm: syz-executor3 Not tainted 4.4.113-g962d1f3 #2 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 0000000000000000 de827d52cc69e3cc ffff8801c94cf6c8 ffffffff81d028ed 0000000000000001 ffffffff839fe3a0 ffffffff83cef6a0 ffff8801c6f817c0 0000000000000003 ffff8801c94cf708 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 [] ___sys_sendmsg+0x6c1/0x7c0 net/socket.c:1962 [] __sys_sendmsg+0xd3/0x190 net/socket.c:1996 [] SYSC_sendmsg net/socket.c:2007 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2003 [] entry_SYSCALL_64_fastpath+0x1c/0x98 capability: warning: `syz-executor6' uses 32-bit capabilities (legacy support in use) audit: type=1326 audit(1517361160.466:7): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5472 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1326 audit(1517361160.486:8): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=5472 comm="syz-executor4" exe="/root/syz-executor4" sig=31 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 audit: type=1400 audit(1517361160.876:9): avc: denied { setattr } for pid=5597 comm="syz-executor6" name="current" dev="proc" ino=12039 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(1517361161.236:10): avc: denied { create } for pid=5695 comm="syz-executor2" 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(1517361161.296:11): avc: denied { write } for pid=5695 comm="syz-executor2" 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(1517361161.726:12): avc: denied { set_context_mgr } for pid=5846 comm="syz-executor2" 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: 5846:5851 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 5846: binder_alloc_buf, no vma binder: 5846:5847 transaction failed 29189/-3, size 0-0 line 3128 binder: undelivered TRANSACTION_ERROR: 29189 binder: 5846:5851 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 5846: binder_alloc_buf, no vma binder: 5846:5847 transaction failed 29189/-3, size 0-0 line 3128 binder: 5846:5851 got reply transaction with no transaction stack binder: 5846 invalid dec weak, ref 6 desc 0 s 1 w 0 binder: 5846:5851 transaction failed 29201/-71, size 32-8 line 2921 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 mmap: syz-executor2 (6075) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket IPv4: Oversized IP packet from 127.0.0.1 IPv4: Oversized IP packet from 127.0.0.1 binder: 6456:6460 ERROR: BC_REGISTER_LOOPER called without request audit_printk_skb: 15 callbacks suppressed audit: type=1400 audit(1517361164.216:18): avc: denied { transfer } for pid=6456 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=binder permissive=1 binder: 6456 invalid dec weak, ref 11 desc 0 s 1 w 0 binder: unexpected work type, 4, not freed binder: 6456:6460 ERROR: BC_REGISTER_LOOPER called without request binder: 6456:6471 transaction failed 29189/-22, size 0-0 line 3005 binder: 6456:6498 got reply transaction with no transaction stack binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_COMPLETE binder: 6456:6498 transaction failed 29201/-71, size 32-8 line 2921 audit: type=1400 audit(1517361164.356:19): avc: denied { create } for pid=6510 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_netfilter_socket permissive=1 binder: undelivered transaction 9, process died. binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29201 audit: type=1400 audit(1517361164.426:20): avc: denied { create } for pid=6510 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_netfilter_socket permissive=1 audit: type=1400 audit(1517361164.426:21): avc: denied { write } for pid=6510 comm="syz-executor1" path="socket:[13647]" dev="sockfs" ino=13647 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 netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. audit: type=1400 audit(1517361164.436:22): avc: denied { getattr } for pid=6510 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_netfilter_socket permissive=1 netlink: 3 bytes leftover after parsing attributes in process `syz-executor1'. audit: type=1400 audit(1517361164.676:23): avc: denied { set_context_mgr } for pid=6589 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: 6589:6590 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 6589:6604 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 6589:6622 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 6589:6623 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 6633:6649 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 6633:6649 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 6680:6696 BC_DEAD_BINDER_DONE 0000000000000003 not found binder: 6680:6696 BC_DEAD_BINDER_DONE 0000000000000000 not found audit: type=1400 audit(1517361165.216:24): avc: denied { dyntransition } for pid=6748 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0,c1 tclass=process permissive=1 audit: type=1400 audit(1517361165.256:25): avc: denied { dyntransition } for pid=6748 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0,c1 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0,c1 tclass=process permissive=1 audit: type=1326 audit(1517361166.186:26): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=6892 comm="syz-executor7" exe="/root/syz-executor7" sig=9 arch=c000003e syscall=202 compat=0 ip=0x453299 code=0x0 syz-executor5 uses obsolete (PF_INET,SOCK_PACKET) SELinux: Invalid class 85 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 21 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 20 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 19 wrong protocol, got 1, expected 17 IPVS: Creating netns size=2552 id=9 l2tp_core: tunl 4: fd 19 wrong protocol, got 1, expected 17 l2tp_core: tunl 4: fd 19 wrong protocol, got 1, expected 17 SELinux: policydb version -888037022 does not match my version range 15-30 SELinux: policydb version -888037022 does not match my version range 15-30 audit_printk_skb: 3 callbacks suppressed audit: type=1401 audit(1517361169.416:28): op=security_bounded_transition seresult=denied oldcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 newcontext=system_u:object_r:init_var_run_t:s0 audit: type=1401 audit(1517361169.486:29): op=security_bounded_transition seresult=denied oldcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 newcontext=system_u:object_r:init_var_run_t:s0 audit: type=1401 audit(1517361169.596:30): op=security_bounded_transition seresult=denied oldcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 newcontext=system_u:object_r:init_var_run_t:s0 IPVS: length: 371 != 24 audit: type=1401 audit(1517361169.676:31): op=security_bounded_transition seresult=denied oldcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 newcontext=system_u:object_r:init_var_run_t:s0 IPVS: length: 371 != 24