BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.5/16404 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 0 PID: 16404 Comm: syz-executor.5 Not tainted 4.4.174+ #17 0000000000000000 3c8d4b878eb1e0eb ffff8801d435f7b0 ffffffff81aad1a1 ffff8800b53eaf80 0000000000000000 ffffffff82a861e0 ffffffff8292c040 0000000000000002 ffff8801d435f7f0 ffffffff81b0ad83 ffffffff00000000 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_prune_queue net/ipv4/tcp_input.c:4978 [inline] [] tcp_try_rmem_schedule+0x1a1/0x1280 net/ipv4/tcp_input.c:4386 [] tcp_send_rcvq+0x1d7/0x4a0 net/ipv4/tcp_input.c:4574 [] 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 [] sock_write_iter+0x235/0x3d0 net/socket.c:847 [] new_sync_write fs/read_write.c:480 [inline] [] __vfs_write+0x2e8/0x3d0 fs/read_write.c:493 [] vfs_write+0x182/0x4e0 fs/read_write.c:540 [] SYSC_write fs/read_write.c:587 [inline] [] SyS_write+0xdc/0x1c0 fs/read_write.c:579 [] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] [] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397 [] sysenter_flags_fixed+0xd/0x1a BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.5/16404 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 0 PID: 16404 Comm: syz-executor.5 Not tainted 4.4.174+ #17 0000000000000000 3c8d4b878eb1e0eb ffff8801d435f618 ffffffff81aad1a1 ffff8800b53eaf80 0000000000000000 ffffffff82a861e0 ffffffff8292c040 0000000000000002 ffff8801d435f658 ffffffff81b0ad83 ffff8801afb83340 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_collapse_one+0x119/0x1e0 net/ipv4/tcp_input.c:4736 [] tcp_collapse+0x84f/0xda0 net/ipv4/tcp_input.c:4849 [] tcp_prune_queue net/ipv4/tcp_input.c:4990 [inline] [] tcp_try_rmem_schedule+0x6ba/0x1280 net/ipv4/tcp_input.c:4386 [] tcp_send_rcvq+0x1d7/0x4a0 net/ipv4/tcp_input.c:4574 [] 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 [] sock_write_iter+0x235/0x3d0 net/socket.c:847 [] new_sync_write fs/read_write.c:480 [inline] [] __vfs_write+0x2e8/0x3d0 fs/read_write.c:493 [] vfs_write+0x182/0x4e0 fs/read_write.c:540 [] SYSC_write fs/read_write.c:587 [inline] [] SyS_write+0xdc/0x1c0 fs/read_write.c:579 [] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] [] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397 [] sysenter_flags_fixed+0xd/0x1a BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.5/16404 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 0 PID: 16404 Comm: syz-executor.5 Not tainted 4.4.174+ #17 0000000000000000 3c8d4b878eb1e0eb ffff8801d435f7b0 ffffffff81aad1a1 ffff8800b53eaf80 0000000000000000 ffffffff82a861e0 ffffffff8292c040 0000000000000002 ffff8801d435f7f0 ffffffff81b0ad83 ffffffff00000000 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_prune_queue net/ipv4/tcp_input.c:5011 [inline] [] tcp_try_rmem_schedule+0xf35/0x1280 net/ipv4/tcp_input.c:4386 [] tcp_send_rcvq+0x1d7/0x4a0 net/ipv4/tcp_input.c:4574 [] 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 [] sock_write_iter+0x235/0x3d0 net/socket.c:847 [] new_sync_write fs/read_write.c:480 [inline] [] __vfs_write+0x2e8/0x3d0 fs/read_write.c:493 [] vfs_write+0x182/0x4e0 fs/read_write.c:540 [] SYSC_write fs/read_write.c:587 [inline] [] SyS_write+0xdc/0x1c0 fs/read_write.c:579 [] do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline] [] do_fast_syscall_32+0x32d/0xa90 arch/x86/entry/common.c:397 [] sysenter_flags_fixed+0xd/0x1a audit: type=1326 audit(1574315294.637:1204): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=16418 comm="syz-executor.0" exe="/root/syz-executor.0" sig=9 arch=40000003 syscall=265 compat=1 ip=0xf7792bf9 code=0x0 audit: type=1400 audit(1574315294.647:1205): avc: denied { create } for pid=16416 comm="syz-executor.2" 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(1574315294.647:1206): avc: denied { create } for pid=16416 comm="syz-executor.2" 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(1574315294.647:1207): avc: denied { write } for pid=16416 comm="syz-executor.2" 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(1574315294.697:1208): avc: denied { write } for pid=16416 comm="syz-executor.2" 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_printk_skb: 9 callbacks suppressed audit: type=1400 audit(1574315298.007:1212): avc: denied { create } for pid=16498 comm="syz-executor.0" 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(1574315298.137:1213): avc: denied { create } for pid=16495 comm="syz-executor.1" 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(1574315298.267:1214): avc: denied { write } for pid=16498 comm="syz-executor.0" 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(1574315298.377:1215): avc: denied { write } for pid=16495 comm="syz-executor.1" 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(1574315298.987:1216): avc: denied { create } for pid=16498 comm="syz-executor.0" 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(1574315299.607:1217): avc: denied { create } for pid=16535 comm="syz-executor.4" 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(1574315299.877:1218): avc: denied { write } for pid=16535 comm="syz-executor.4" 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: 1 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1400 audit(1574315301.647:1219): avc: denied { create } for pid=16582 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1574315301.817:1220): avc: denied { create } for pid=16582 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1574315301.857:1221): avc: denied { write } for pid=16582 comm="syz-executor.1" path="socket:[54397]" dev="sockfs" ino=54397 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit_printk_skb: 171 callbacks suppressed input: syz1 as /devices/virtual/input/input53 audit: type=1400 audit(1574315303.157:1279): avc: denied { write } for pid=16612 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 audit: type=1400 audit(1574315303.467:1280): avc: denied { write } for pid=16612 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_fib_lookup_socket permissive=1 input: syz1 as /devices/virtual/input/input55