BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.3/7964 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 0 PID: 7964 Comm: syz-executor.3 Not tainted 4.4.174+ #4 0000000000000000 5f4189e79b2aa216 ffff8801ba6ff7d8 ffffffff81aad1a1 ffff8801ba5a97c0 0000000000000000 ffffffff82a861e0 ffffffff8292c040 0000000000000002 ffff8801ba6ff818 ffffffff81b0ad83 1ffff100374dff00 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 [] ___sys_sendmsg+0x769/0x890 net/socket.c:1975 [] __sys_sendmsg+0xc5/0x160 net/socket.c:2009 [] SYSC_sendmsg net/socket.c:2020 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2016 [] entry_SYSCALL_64_fastpath+0x1e/0x9a BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.3/7964 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 1 PID: 7964 Comm: syz-executor.3 Not tainted 4.4.174+ #4 0000000000000000 5f4189e79b2aa216 ffff8801ba6ff640 ffffffff81aad1a1 ffff8801ba5a97c0 0000000000000001 ffffffff82a861e0 ffffffff8292c040 0000000000000001 ffff8801ba6ff680 ffffffff81b0ad83 ffff8801d8029ec0 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 [] ___sys_sendmsg+0x769/0x890 net/socket.c:1975 [] __sys_sendmsg+0xc5/0x160 net/socket.c:2009 [] SYSC_sendmsg net/socket.c:2020 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2016 [] entry_SYSCALL_64_fastpath+0x1e/0x9a BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.3/7964 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 1 PID: 7964 Comm: syz-executor.3 Not tainted 4.4.174+ #4 0000000000000000 5f4189e79b2aa216 ffff8801ba6ff640 ffffffff81aad1a1 ffff8801ba5a97c0 0000000000000001 ffffffff82a861e0 ffffffff8292c040 0000000000000001 ffff8801ba6ff680 ffffffff81b0ad83 ffff8801d8029ec0 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 [] ___sys_sendmsg+0x769/0x890 net/socket.c:1975 [] __sys_sendmsg+0xc5/0x160 net/socket.c:2009 [] SYSC_sendmsg net/socket.c:2020 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2016 [] entry_SYSCALL_64_fastpath+0x1e/0x9a BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor.3/7964 caller is __this_cpu_preempt_check+0x1d/0x30 lib/smp_processor_id.c:62 CPU: 1 PID: 7964 Comm: syz-executor.3 Not tainted 4.4.174+ #4 0000000000000000 5f4189e79b2aa216 ffff8801ba6ff7d8 ffffffff81aad1a1 ffff8801ba5a97c0 0000000000000001 ffffffff82a861e0 ffffffff8292c040 0000000000000001 ffff8801ba6ff818 ffffffff81b0ad83 1ffff100374dff00 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 [] ___sys_sendmsg+0x769/0x890 net/socket.c:1975 [] __sys_sendmsg+0xc5/0x160 net/socket.c:2009 [] SYSC_sendmsg net/socket.c:2020 [inline] [] SyS_sendmsg+0x2d/0x50 net/socket.c:2016 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable audit: type=1401 audit(1573006917.395:21): op=setxattr invalid_context="" Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable audit: type=1400 audit(1573006918.425:22): avc: denied { setattr } for pid=8260 comm="syz-executor.0" name="fd" dev="proc" ino=24204 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=dir permissive=1 tty_warn_deprecated_flags: 'syz-executor.3' is using deprecated serial flags (with no effect): 00000200 tty_warn_deprecated_flags: 'syz-executor.3' is using deprecated serial flags (with no effect): 00000200 Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable