BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.0/14328 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 1 PID: 14328 Comm: syz-executor.0 Not tainted 4.4.174+ #4 0000000000000000 663802e4fc99e09f ffff8801b5047678 ffffffff81aad1a1 ffff8800b52017c0 0000000000000001 ffffffff82a861e0 ffffffff8292c040 0000000000000001 ffff8801b50476b8 ffffffff81b0ad83 ffff8801d3668c80 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] check_preemption_disabled+0x1d3/0x200 lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 [] tcp_try_coalesce net/ipv4/tcp_input.c:4293 [inline] [] tcp_try_coalesce+0x245/0x510 net/ipv4/tcp_input.c:4275 [] tcp_queue_rcv+0x127/0x6f0 net/ipv4/tcp_input.c:4539 [] tcp_send_rcvq+0x3de/0x4a0 net/ipv4/tcp_input.c:4585 [] tcp_sendmsg+0x2332/0x2ab0 net/ipv4/tcp.c:1134 [] inet_sendmsg+0x202/0x4d0 net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec net/socket.c:638 [inline] [] sock_sendmsg+0xbe/0x110 net/socket.c:648 [] ___sys_sendmsg+0x369/0x890 net/socket.c:1975 [] __sys_sendmmsg+0x130/0x2e0 net/socket.c:2060 [] SYSC_sendmmsg net/socket.c:2090 [inline] [] SyS_sendmmsg+0x35/0x60 net/socket.c:2085 [] entry_SYSCALL_64_fastpath+0x1e/0x9a SELinux: unrecognized netlink message: protocol=0 nlmsg_type=60530 sclass=netlink_route_socket SELinux: unrecognized netlink message: protocol=0 nlmsg_type=60530 sclass=netlink_route_socket binder: 14575:14576 ioctl 40046205 0 returned -22 binder: 14575:14576 ioctl 40046205 0 returned -22