[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 18.862837] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 19.600719] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [ 19.823825] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.669173] random: sshd: uninitialized urandom read (32 bytes read, 108 bits of entropy available) [ 20.830417] random: sshd: uninitialized urandom read (32 bytes read, 112 bits of entropy available) Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. [ 26.160697] random: sshd: uninitialized urandom read (32 bytes read, 115 bits of entropy available) 2018/02/20 03:44:24 parsed 1 programs 2018/02/20 03:44:24 executed programs: 0 [ 26.516319] IPVS: Creating netns size=2552 id=1 [ 26.552769] IPVS: Creating netns size=2552 id=2 [ 26.598293] IPVS: Creating netns size=2552 id=3 [ 26.645951] IPVS: Creating netns size=2552 id=4 [ 26.723401] IPVS: Creating netns size=2552 id=5 [ 26.789523] IPVS: Creating netns size=2552 id=6 [ 26.892123] IPVS: Creating netns size=2552 id=7 [ 26.985433] IPVS: Creating netns size=2552 id=8 2018/02/20 03:44:29 executed programs: 57 [ 32.300564] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor7/5953 [ 32.309285] caller is __this_cpu_preempt_check+0x1c/0x20 [ 32.314731] CPU: 1 PID: 5953 Comm: syz-executor7 Not tainted 4.4.115-g55a366596 #15 [ 32.322507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.331849] 0000000000000000 d5331f49c9f782c6 ffff8801d88e7800 ffffffff81d03d8d [ 32.339883] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d882c800 [ 32.347941] 0000000000000003 ffff8801d88e7840 ffffffff81d63cd4 ffffffff81237470 [ 32.355992] Call Trace: [ 32.358583] [] dump_stack+0xc1/0x124 [ 32.363947] [] check_preemption_disabled+0x1d4/0x200 [ 32.370686] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.377691] [] __this_cpu_preempt_check+0x1c/0x20 [ 32.384180] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 32.390585] [] ? skb_put+0x149/0x1c0 [ 32.395935] [] tcp_send_rcvq+0x1ba/0x450 [ 32.401633] [] ? tcp_rcv_established+0x2230/0x2230 [ 32.408199] [] ? tcp_sendmsg+0xb3/0x2b10 [ 32.413898] [] ? lock_sock_nested+0xa2/0x120 [ 32.419945] [] ? lock_sock_nested+0x90/0x120 [ 32.425990] [] ? trace_hardirqs_on+0xd/0x10 [ 32.431951] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.438257] [] tcp_sendmsg+0x1e8f/0x2b10 [ 32.443955] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.450949] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.457942] [] ? sock_has_perm+0x1c1/0x400 [ 32.463807] [] ? tcp_sendpage+0x1830/0x1830 [ 32.469748] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 32.476816] [] ? __fget+0x47/0x3b0 [ 32.481975] [] ? inet_sendmsg+0x73/0x4c0 [ 32.487656] [] ? inet_sendmsg+0x201/0x4c0 [ 32.493420] [] inet_sendmsg+0x2bc/0x4c0 [ 32.499013] [] ? inet_sendmsg+0x73/0x4c0 [ 32.504698] [] ? inet_recvmsg+0x4c0/0x4c0 [ 32.510464] [] sock_sendmsg+0xca/0x110 [ 32.515968] [] SYSC_sendto+0x2c8/0x340 [ 32.521486] [] ? SYSC_connect+0x310/0x310 [ 32.527252] [] ? lock_sock_nested+0xdc/0x120 [ 32.533279] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 32.540178] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 32.547249] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 32.553361] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 32.560350] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 32.566902] [] ? sock_common_setsockopt+0xd0/0xd0 [ 32.573365] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 32.579912] [] SyS_sendto+0x40/0x50 [ 32.585156] [] ? SyS_getpeername+0x30/0x30 [ 32.591021] [] do_fast_syscall_32+0x314/0x890 [ 32.597138] [] sysenter_flags_fixed+0xd/0x17 [ 32.603472] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor7/5953 [ 32.612018] caller is __this_cpu_preempt_check+0x1c/0x20 [ 32.617720] CPU: 1 PID: 5953 Comm: syz-executor7 Not tainted 4.4.115-g55a366596 #15 [ 32.625496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.634834] 0000000000000000 d5331f49c9f782c6 ffff8801d88e7800 ffffffff81d03d8d [ 32.642805] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d882c800 [ 32.650783] 0000000000000003 ffff8801d88e7840 ffffffff81d63cd4 ffffffff8313163a [ 32.658746] Call Trace: [ 32.661304] [] dump_stack+0xc1/0x124 [ 32.666637] [] check_preemption_disabled+0x1d4/0x200 [ 32.673361] [] ? tcp_prune_ofo_queue+0x30a/0x420 [ 32.679735] [] __this_cpu_preempt_check+0x1c/0x20 [ 32.686208] [] tcp_try_rmem_schedule+0xe33/0x1180 [ 32.692680] [] tcp_send_rcvq+0x1ba/0x450 [ 32.698360] [] ? tcp_rcv_established+0x2230/0x2230 [ 32.704906] [] ? tcp_sendmsg+0xb3/0x2b10 [ 32.710587] [] ? lock_sock_nested+0xa2/0x120 [ 32.716615] [] ? lock_sock_nested+0x90/0x120 [ 32.722644] [] ? trace_hardirqs_on+0xd/0x10 [ 32.728584] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 32.734870] [] tcp_sendmsg+0x1e8f/0x2b10 [ 32.740549] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.747539] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 32.754520] [] ? sock_has_perm+0x1c1/0x400 [ 32.760375] [] ? tcp_sendpage+0x1830/0x1830 [ 32.766316] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 32.773385] [] ? __fget+0x47/0x3b0 [ 32.778542] [] ? inet_sendmsg+0x73/0x4c0 [ 32.784219] [] ? inet_sendmsg+0x201/0x4c0 [ 32.789984] [] inet_sendmsg+0x2bc/0x4c0 [ 32.795573] [] ? inet_sendmsg+0x73/0x4c0 [ 32.801253] [] ? inet_recvmsg+0x4c0/0x4c0 [ 32.807021] [] sock_sendmsg+0xca/0x110 [ 32.812537] [] SYSC_sendto+0x2c8/0x340 [ 32.818041] [] ? SYSC_connect+0x310/0x310 [ 32.823807] [] ? lock_sock_nested+0xdc/0x120 [ 32.829833] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 32.836729] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 32.843799] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 32.849913] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 32.856893] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 32.863448] [] ? sock_common_setsockopt+0xd0/0xd0 [ 32.869908] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 32.876463] [] SyS_sendto+0x40/0x50 [ 32.881710] [] ? SyS_getpeername+0x30/0x30 [ 32.887565] [] do_fast_syscall_32+0x314/0x890 [ 32.893677] [] sysenter_flags_fixed+0xd/0x17 [ 33.493087] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor6/6135 [ 33.501778] caller is __this_cpu_preempt_check+0x1c/0x20 [ 33.507482] CPU: 1 PID: 6135 Comm: syz-executor6 Not tainted 4.4.115-g55a366596 #15 [ 33.515262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.524604] 0000000000000000 1940c25194770a19 ffff8800ba8f7800 ffffffff81d03d8d [ 33.532641] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d8a19800 [ 33.540795] 0000000000000003 ffff8800ba8f7840 ffffffff81d63cd4 ffffffff81237470 [ 33.548833] Call Trace: [ 33.551408] [] dump_stack+0xc1/0x124 [ 33.556762] [] check_preemption_disabled+0x1d4/0x200 [ 33.563503] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.570502] [] __this_cpu_preempt_check+0x1c/0x20 [ 33.576981] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 33.583373] [] ? skb_put+0x149/0x1c0 [ 33.588729] [] tcp_send_rcvq+0x1ba/0x450 [ 33.594438] [] ? tcp_rcv_established+0x2230/0x2230 [ 33.601014] [] ? tcp_sendmsg+0xb3/0x2b10 [ 33.606717] [] ? lock_sock_nested+0xa2/0x120 [ 33.612781] [] ? lock_sock_nested+0x90/0x120 [ 33.618838] [] ? trace_hardirqs_on+0xd/0x10 [ 33.624802] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 33.631110] [] tcp_sendmsg+0x1e8f/0x2b10 [ 33.636821] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.643821] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.650821] [] ? sock_has_perm+0x1c1/0x400 [ 33.656693] [] ? tcp_sendpage+0x1830/0x1830 [ 33.662652] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 33.669738] [] ? __fget+0x47/0x3b0 [ 33.674922] [] ? inet_sendmsg+0x73/0x4c0 [ 33.680631] [] ? inet_sendmsg+0x201/0x4c0 [ 33.686417] [] inet_sendmsg+0x2bc/0x4c0 [ 33.692046] [] ? inet_sendmsg+0x73/0x4c0 [ 33.697772] [] ? inet_recvmsg+0x4c0/0x4c0 [ 33.703568] [] sock_sendmsg+0xca/0x110 [ 33.709093] [] SYSC_sendto+0x2c8/0x340 [ 33.714615] [] ? SYSC_connect+0x310/0x310 [ 33.720403] [] ? lock_sock_nested+0xdc/0x120 [ 33.726457] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 33.733371] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 33.740461] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 33.746597] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 33.753596] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 33.760158] [] ? sock_common_setsockopt+0xd0/0xd0 [ 33.766619] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 33.773167] [] SyS_sendto+0x40/0x50 [ 33.778413] [] ? SyS_getpeername+0x30/0x30 [ 33.784270] [] do_fast_syscall_32+0x314/0x890 [ 33.790386] [] sysenter_flags_fixed+0xd/0x17 [ 33.796684] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor6/6135 [ 33.805241] caller is __this_cpu_preempt_check+0x1c/0x20 [ 33.810931] CPU: 1 PID: 6135 Comm: syz-executor6 Not tainted 4.4.115-g55a366596 #15 [ 33.818705] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.828029] 0000000000000000 1940c25194770a19 ffff8800ba8f7800 ffffffff81d03d8d [ 33.836003] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d8a19800 [ 33.843971] 0000000000000003 ffff8800ba8f7840 ffffffff81d63cd4 ffffffff8313163a [ 33.851944] Call Trace: [ 33.854507] [] dump_stack+0xc1/0x124 [ 33.859841] [] check_preemption_disabled+0x1d4/0x200 [ 33.866565] [] ? tcp_prune_ofo_queue+0x30a/0x420 [ 33.872939] [] __this_cpu_preempt_check+0x1c/0x20 [ 33.879402] [] tcp_try_rmem_schedule+0xe33/0x1180 [ 33.885863] [] tcp_send_rcvq+0x1ba/0x450 [ 33.891543] [] ? tcp_rcv_established+0x2230/0x2230 [ 33.898092] [] ? tcp_sendmsg+0xb3/0x2b10 [ 33.903784] [] ? lock_sock_nested+0xa2/0x120 [ 33.909814] [] ? lock_sock_nested+0x90/0x120 [ 33.915843] [] ? trace_hardirqs_on+0xd/0x10 [ 33.921786] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 33.928072] [] tcp_sendmsg+0x1e8f/0x2b10 [ 33.933755] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.940747] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 33.947733] [] ? sock_has_perm+0x1c1/0x400 [ 33.953587] [] ? tcp_sendpage+0x1830/0x1830 [ 33.959530] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 33.966606] [] ? __fget+0x47/0x3b0 [ 33.971766] [] ? inet_sendmsg+0x73/0x4c0 [ 33.977455] [] ? inet_sendmsg+0x201/0x4c0 [ 33.983221] [] inet_sendmsg+0x2bc/0x4c0 [ 33.988812] [] ? inet_sendmsg+0x73/0x4c0 [ 33.994489] [] ? inet_recvmsg+0x4c0/0x4c0 [ 34.000272] [] sock_sendmsg+0xca/0x110 [ 34.005776] [] SYSC_sendto+0x2c8/0x340 [ 34.011281] [] ? SYSC_connect+0x310/0x310 [ 34.017049] [] ? lock_sock_nested+0xdc/0x120 [ 34.023074] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 34.029968] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 34.037038] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 34.043148] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 34.050127] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 34.056674] [] ? sock_common_setsockopt+0xd0/0xd0 [ 34.063134] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 34.069682] [] SyS_sendto+0x40/0x50 [ 34.074925] [] ? SyS_getpeername+0x30/0x30 [ 34.080777] [] do_fast_syscall_32+0x314/0x890 [ 34.086891] [] sysenter_flags_fixed+0xd/0x17 [ 36.343091] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor1/6910 [ 36.351792] caller is __this_cpu_preempt_check+0x1c/0x20 [ 36.357358] CPU: 1 PID: 6910 Comm: syz-executor1 Not tainted 4.4.115-g55a366596 #15 [ 36.365135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.374473] 0000000000000000 b455f40e68beeeaa ffff8801d685f800 ffffffff81d03d8d [ 36.382516] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d7801800 [ 36.390587] 0000000000000003 ffff8801d685f840 ffffffff81d63cd4 ffffffff81237470 [ 36.398624] Call Trace: [ 36.401211] [] dump_stack+0xc1/0x124 [ 36.406585] [] check_preemption_disabled+0x1d4/0x200 [ 36.413341] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.420348] [] __this_cpu_preempt_check+0x1c/0x20 [ 36.426830] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 36.433222] [] ? skb_put+0x149/0x1c0 [ 36.438693] [] tcp_send_rcvq+0x1ba/0x450 [ 36.444387] [] ? tcp_rcv_established+0x2230/0x2230 [ 36.450968] [] ? tcp_sendmsg+0xb3/0x2b10 [ 36.456663] [] ? lock_sock_nested+0xa2/0x120 [ 36.462707] [] ? lock_sock_nested+0x90/0x120 [ 36.468754] [] ? trace_hardirqs_on+0xd/0x10 [ 36.474712] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 36.481019] [] tcp_sendmsg+0x1e8f/0x2b10 [ 36.486746] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.493761] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.500762] [] ? sock_has_perm+0x1c1/0x400 [ 36.506634] [] ? tcp_sendpage+0x1830/0x1830 [ 36.512610] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 36.519695] [] ? __fget+0x47/0x3b0 [ 36.524872] [] ? inet_sendmsg+0x73/0x4c0 [ 36.530570] [] ? inet_sendmsg+0x201/0x4c0 [ 36.536353] [] inet_sendmsg+0x2bc/0x4c0 2018/02/20 03:44:34 executed programs: 482 [ 36.541963] [] ? inet_sendmsg+0x73/0x4c0 [ 36.547657] [] ? inet_recvmsg+0x4c0/0x4c0 [ 36.553440] [] sock_sendmsg+0xca/0x110 [ 36.558972] [] SYSC_sendto+0x2c8/0x340 [ 36.564519] [] ? SYSC_connect+0x310/0x310 [ 36.570403] [] ? lock_sock_nested+0xdc/0x120 [ 36.576451] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 36.583367] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 36.590457] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 36.596579] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 36.603572] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 36.610143] [] ? sock_common_setsockopt+0xd0/0xd0 [ 36.616640] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 36.623199] [] SyS_sendto+0x40/0x50 [ 36.628451] [] ? SyS_getpeername+0x30/0x30 [ 36.634305] [] do_fast_syscall_32+0x314/0x890 [ 36.640426] [] sysenter_flags_fixed+0xd/0x17 [ 36.646760] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor1/6910 [ 36.655445] caller is __this_cpu_preempt_check+0x1c/0x20 [ 36.661062] CPU: 1 PID: 6910 Comm: syz-executor1 Not tainted 4.4.115-g55a366596 #15 [ 36.668834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.678158] 0000000000000000 b455f40e68beeeaa ffff8801d685f800 ffffffff81d03d8d [ 36.686132] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d7801800 [ 36.694108] 0000000000000003 ffff8801d685f840 ffffffff81d63cd4 ffffffff8313163a [ 36.702079] Call Trace: [ 36.704639] [] dump_stack+0xc1/0x124 [ 36.709983] [] check_preemption_disabled+0x1d4/0x200 [ 36.716709] [] ? tcp_prune_ofo_queue+0x30a/0x420 [ 36.723084] [] __this_cpu_preempt_check+0x1c/0x20 [ 36.729546] [] tcp_try_rmem_schedule+0xe33/0x1180 [ 36.736007] [] tcp_send_rcvq+0x1ba/0x450 [ 36.741689] [] ? tcp_rcv_established+0x2230/0x2230 [ 36.748238] [] ? tcp_sendmsg+0xb3/0x2b10 [ 36.753921] [] ? lock_sock_nested+0xa2/0x120 [ 36.759956] [] ? lock_sock_nested+0x90/0x120 [ 36.765985] [] ? trace_hardirqs_on+0xd/0x10 [ 36.771926] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 36.778220] [] tcp_sendmsg+0x1e8f/0x2b10 [ 36.783902] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.790884] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 36.797869] [] ? sock_has_perm+0x1c1/0x400 [ 36.803724] [] ? tcp_sendpage+0x1830/0x1830 [ 36.809669] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 36.816742] [] ? __fget+0x47/0x3b0 [ 36.821903] [] ? inet_sendmsg+0x73/0x4c0 [ 36.827582] [] ? inet_sendmsg+0x201/0x4c0 [ 36.833347] [] inet_sendmsg+0x2bc/0x4c0 [ 36.839011] [] ? inet_sendmsg+0x73/0x4c0 [ 36.844688] [] ? inet_recvmsg+0x4c0/0x4c0 [ 36.850453] [] sock_sendmsg+0xca/0x110 [ 36.855955] [] SYSC_sendto+0x2c8/0x340 [ 36.861460] [] ? SYSC_connect+0x310/0x310 [ 36.867225] [] ? lock_sock_nested+0xdc/0x120 [ 36.873250] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 36.880155] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 36.887225] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 36.893335] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 36.900315] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 36.906861] [] ? sock_common_setsockopt+0xd0/0xd0 [ 36.913324] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 36.919873] [] SyS_sendto+0x40/0x50 [ 36.925117] [] ? SyS_getpeername+0x30/0x30 [ 36.930970] [] do_fast_syscall_32+0x314/0x890 [ 36.937096] [] sysenter_flags_fixed+0xd/0x17 [ 37.170446] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor4/7036 [ 37.179121] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.184565] CPU: 1 PID: 7036 Comm: syz-executor4 Not tainted 4.4.115-g55a366596 #15 [ 37.192342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.201684] 0000000000000000 dc0288865b8dd8c0 ffff8801d67cf800 ffffffff81d03d8d [ 37.209708] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d9598000 [ 37.217726] 0000000000000003 ffff8801d67cf840 ffffffff81d63cd4 ffffffff81237470 [ 37.225802] Call Trace: [ 37.228399] [] dump_stack+0xc1/0x124 [ 37.233761] [] check_preemption_disabled+0x1d4/0x200 [ 37.240519] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 37.247534] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.254018] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 37.260413] [] ? skb_put+0x149/0x1c0 [ 37.265762] [] tcp_send_rcvq+0x1ba/0x450 [ 37.271462] [] ? tcp_rcv_established+0x2230/0x2230 [ 37.278028] [] ? tcp_sendmsg+0xb3/0x2b10 [ 37.283725] [] ? lock_sock_nested+0xa2/0x120 [ 37.289773] [] ? lock_sock_nested+0x90/0x120 [ 37.295820] [] ? trace_hardirqs_on+0xd/0x10 [ 37.301783] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 37.308096] [] tcp_sendmsg+0x1e8f/0x2b10 [ 37.313811] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 37.320826] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 37.327831] [] ? sock_has_perm+0x1c1/0x400 [ 37.333701] [] ? tcp_sendpage+0x1830/0x1830 [ 37.339655] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 37.346743] [] ? __fget+0x47/0x3b0 [ 37.351923] [] ? inet_sendmsg+0x73/0x4c0 [ 37.357620] [] ? inet_sendmsg+0x201/0x4c0 [ 37.363403] [] inet_sendmsg+0x2bc/0x4c0 [ 37.369013] [] ? inet_sendmsg+0x73/0x4c0 [ 37.374711] [] ? inet_recvmsg+0x4c0/0x4c0 [ 37.380497] [] sock_sendmsg+0xca/0x110 [ 37.386017] [] SYSC_sendto+0x2c8/0x340 [ 37.391537] [] ? SYSC_connect+0x310/0x310 [ 37.397321] [] ? lock_sock_nested+0xdc/0x120 [ 37.403373] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 37.410286] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 37.417368] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 37.423497] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 37.430498] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 37.437066] [] ? sock_common_setsockopt+0xd0/0xd0 [ 37.444282] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 37.450842] [] SyS_sendto+0x40/0x50 [ 37.456088] [] ? SyS_getpeername+0x30/0x30 [ 37.461944] [] do_fast_syscall_32+0x314/0x890 [ 37.468074] [] sysenter_flags_fixed+0xd/0x17 [ 37.474366] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor4/7036 [ 37.482975] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.488581] CPU: 1 PID: 7036 Comm: syz-executor4 Not tainted 4.4.115-g55a366596 #15 [ 37.496354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.505766] 0000000000000000 dc0288865b8dd8c0 ffff8801d67cf800 ffffffff81d03d8d [ 37.513769] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d9598000 [ 37.521750] 0000000000000003 ffff8801d67cf840 ffffffff81d63cd4 ffffffff8313163a [ 37.529713] Call Trace: [ 37.532272] [] dump_stack+0xc1/0x124 [ 37.537604] [] check_preemption_disabled+0x1d4/0x200 [ 37.544326] [] ? tcp_prune_ofo_queue+0x30a/0x420 [ 37.550702] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.557163] [] tcp_try_rmem_schedule+0xe33/0x1180 [ 37.563625] [] tcp_send_rcvq+0x1ba/0x450 [ 37.569306] [] ? tcp_rcv_established+0x2230/0x2230 [ 37.575865] [] ? tcp_sendmsg+0xb3/0x2b10 [ 37.581546] [] ? lock_sock_nested+0xa2/0x120 [ 37.587572] [] ? lock_sock_nested+0x90/0x120 [ 37.593598] [] ? trace_hardirqs_on+0xd/0x10 [ 37.599550] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 37.605844] [] tcp_sendmsg+0x1e8f/0x2b10 [ 37.611528] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 37.618520] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 37.625514] [] ? sock_has_perm+0x1c1/0x400 [ 37.631377] [] ? tcp_sendpage+0x1830/0x1830 [ 37.637317] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 37.644388] [] ? __fget+0x47/0x3b0 [ 37.649559] [] ? inet_sendmsg+0x73/0x4c0 [ 37.655236] [] ? inet_sendmsg+0x201/0x4c0 [ 37.661001] [] inet_sendmsg+0x2bc/0x4c0 [ 37.666591] [] ? inet_sendmsg+0x73/0x4c0 [ 37.672271] [] ? inet_recvmsg+0x4c0/0x4c0 [ 37.678037] [] sock_sendmsg+0xca/0x110 [ 37.683538] [] SYSC_sendto+0x2c8/0x340 [ 37.689055] [] ? SYSC_connect+0x310/0x310 [ 37.694825] [] ? lock_sock_nested+0xdc/0x120 [ 37.700854] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 37.707749] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 37.714818] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 37.720932] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 37.727913] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 37.734460] [] ? sock_common_setsockopt+0xd0/0xd0 [ 37.740921] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 37.747467] [] SyS_sendto+0x40/0x50 [ 37.752722] [] ? SyS_getpeername+0x30/0x30 [ 37.758574] [] do_fast_syscall_32+0x314/0x890 [ 37.764687] [] sysenter_flags_fixed+0xd/0x17 [ 40.613323] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor7/8021 [ 40.622002] caller is __this_cpu_preempt_check+0x1c/0x20 [ 40.627679] CPU: 1 PID: 8021 Comm: syz-executor7 Not tainted 4.4.115-g55a366596 #15 [ 40.635460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.644799] 0000000000000000 81106c79a24c5270 ffff8801d2c5f800 ffffffff81d03d8d [ 40.652837] 0000000000000001 ffffffff839fe4a0 ffffffff83cef860 ffff8801d41ab000 [ 40.660873] 0000000000000003 ffff8801d2c5f840 ffffffff81d63cd4 ffffffff81237470 [ 40.668905] Call Trace: [ 40.671480] [] dump_stack+0xc1/0x124 [ 40.676840] [] check_preemption_disabled+0x1d4/0x200 [ 40.683602] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 40.690615] [] __this_cpu_preempt_check+0x1c/0x20 [ 40.697102] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 40.703494] [] ? skb_put+0x149/0x1c0 [ 40.708844] [] tcp_send_rcvq+0x1ba/0x450 [ 40.714544] [] ? tcp_rcv_established+0x2230/0x2230 [ 40.721115] [] ? tcp_sendmsg+0xb3/0x2b10 [ 40.722644] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor2/8050 [ 40.722651] caller is __this_cpu_preempt_check+0x1c/0x20 [ 40.740594] [] ? lock_sock_nested+0xa2/0x120 [ 40.746625] [] ? lock_sock_nested+0x90/0x120 [ 40.752657] [] ? trace_hardirqs_on+0xd/0x10 [ 40.758603] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 40.764899] [] tcp_sendmsg+0x1e8f/0x2b10 [ 40.770584] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 40.777574] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 40.784564] [] ? sock_has_perm+0x1c1/0x400 [ 40.790423] [] ? tcp_sendpage+0x1830/0x1830 [ 40.796370] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 40.803443] [] ? __fget+0x47/0x3b0 [ 40.808608] [] ? inet_sendmsg+0x73/0x4c0 [ 40.814292] [] ? inet_sendmsg+0x201/0x4c0 [ 40.820061] [] inet_sendmsg+0x2bc/0x4c0 [ 40.825665] [] ? inet_sendmsg+0x73/0x4c0 [ 40.831351] [] ? inet_recvmsg+0x4c0/0x4c0 [ 40.837124] [] sock_sendmsg+0xca/0x110 [ 40.842633] [] SYSC_sendto+0x2c8/0x340 [ 40.848146] [] ? SYSC_connect+0x310/0x310 [ 40.853917] [] ? lock_sock_nested+0xdc/0x120 [ 40.859951] [] ? do_tcp_setsockopt.isra.33+0xb9/0x1910 [ 40.866851] [] ? selinux_netlbl_sock_rcv_skb+0x400/0x400 [ 40.873925] [] ? compat_SyS_futex+0x1f9/0x2a0 [ 40.880044] [] ? compat_SyS_get_robust_list+0x300/0x300 [ 40.887029] [] ? compat_SyS_setsockopt+0x18a/0x290 [ 40.893581] [] ? sock_common_setsockopt+0xd0/0xd0 [ 40.900045] [] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 40.906599] [] SyS_sendto+0x40/0x50 [ 40.911849] [] ? SyS_getpeername+0x30/0x30 [ 40.917709] [] do_fast_syscall_32+0x314/0x890 [ 40.923831] [] sysenter_flags_fixed+0xd/0x17 [ 40.929866] CPU: 0 PID: 8050 Comm: syz-executor2 Not tainted 4.4.115-g55a366596 #15 [ 40.930328] BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor7/8021 [ 40.930335] caller is __this_cpu_preempt_check+0x1c/0x20 [ 40.951448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.960773] 0000000000000000 fe262c2f20c1741d ffff8801d3cc7800 ffffffff81d03d8d [ 40.968764] 0000000000000000 ffffffff839fe4a0 ffffffff83cef860 ffff8801d2c26000 [ 40.976755] 0000000000000003 ffff8801d3cc7840 ffffffff81d63cd4 ffffffff81237470 [ 40.984739] Call Trace: [ 40.987301] [] dump_stack+0xc1/0x124 [ 40.992641] [] check_preemption_disabled+0x1d4/0x200 [ 40.999369] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 41.006355] [] __this_cpu_preempt_check+0x1c/0x20 [ 41.012820] [] tcp_try_rmem_schedule+0xf2/0x1180 [ 41.019199] [] ? skb_put+0x149/0x1c0 [ 41.024535] [] tcp_send_rcvq+0x1ba/0x450 [ 41.030222] [] ? tcp_rcv_established+0x2230/0x2230 [ 41.036775] [] ? tcp_sendmsg+0xb3/0x2b10 [ 41.042461] [] ? lock_sock_nested+0xa2/0x120 [ 41.048493] [] ? lock_sock_nested+0x90/0x120 [ 41.054526] [] ? trace_hardirqs_on+0xd/0x10 [ 41.060472] [] ? __local_bh_enable_ip+0x6a/0xd0 [ 41.066767] [] tcp_sendmsg+0x1e8f/0x2b10 [ 41.072450] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 41.079437] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 41.086425] [] ? sock_has_perm+0x1c1/0x400 [ 41.092284] [] ? tcp_sendpage+0x1830/0x1830 [ 41.098233] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 41.105304] [] ? __fget+0x47/0x3b0 [ 41.110470] [] ? inet_sendmsg+0x73/0x4c