[....] Starting enhanced syslogd: rsyslogd[ 12.700860] audit: type=1400 audit(1515788196.455:4): avc: denied { syslog } for pid=3169 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 24.375955] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 24.384726] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.390207] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 24.397887] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.407220] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 24.415182] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 24.423138] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 24.431089] Call Trace: [ 24.433647] [] dump_stack+0xc1/0x128 [ 24.438980] [] check_preemption_disabled+0x1d4/0x200 [ 24.445701] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.452164] [] ipcomp_init_state+0x188/0x930 [ 24.458190] [] ? __lock_is_held+0xa1/0xf0 [ 24.463956] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.469982] [] __xfrm_init_state+0x3e7/0xb30 [ 24.476024] [] xfrm_add_sa+0x1916/0x2e40 [ 24.481704] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.488511] [] ? nla_parse+0x213/0x260 [ 24.494017] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.500826] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.506860] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.512905] [] netlink_rcv_skb+0x13e/0x370 [ 24.518757] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.524782] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.530546] [] netlink_unicast+0x511/0x750 [ 24.536395] [] ? netlink_unicast+0x43c/0x750 [ 24.542438] [] ? netlink_attachskb+0x680/0x680 [ 24.548647] [] netlink_sendmsg+0x8e8/0xc50 [ 24.554501] [] ? netlink_unicast+0x750/0x750 [ 24.560530] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 24.566994] [] ? security_socket_sendmsg+0x89/0xb0 [ 24.573542] [] ? netlink_unicast+0x750/0x750 [ 24.579568] [] sock_sendmsg+0xca/0x110 [ 24.585075] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.590853] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.597410] [] ? __lru_cache_add+0x187/0x250 [ 24.603446] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 24.610519] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.616459] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.623528] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.629643] [] ? __lock_is_held+0xa1/0xf0 [ 24.635412] [] ? __pmd_alloc+0x410/0x410 [ 24.641105] [] ? __fget_light+0x158/0x1e0 [ 24.646874] [] ? __fdget+0x18/0x20 [ 24.652035] [] __sys_sendmsg+0xd6/0x190 [ 24.657626] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.663395] [] ? __do_page_fault+0x5ec/0xd40 [ 24.669421] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 24.675449] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.682260] [] SyS_sendmsg+0x2d/0x50 [ 24.687591] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 24.696459] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 24.705185] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.710782] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 24.718458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.727789] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 24.735747] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 24.743700] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 24.751655] Call Trace: [ 24.754214] [] dump_stack+0xc1/0x128 [ 24.759545] [] check_preemption_disabled+0x1d4/0x200 [ 24.766267] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.772733] [] ipcomp_init_state+0x188/0x930 [ 24.778760] [] ? __lock_is_held+0xa1/0xf0 [ 24.784526] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.790549] [] __xfrm_init_state+0x3e7/0xb30 [ 24.796574] [] xfrm_add_sa+0x1916/0x2e40 [ 24.802255] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.809064] [] ? nla_parse+0x213/0x260 [ 24.814572] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.821392] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.827416] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.833448] [] netlink_rcv_skb+0x13e/0x370 [ 24.839300] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.845328] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.851094] [] netlink_unicast+0x511/0x750 [ 24.856947] [] ? netlink_unicast+0x43c/0x750 [ 24.862973] [] ? netlink_attachskb+0x680/0x680 [ 24.869171] [] netlink_sendmsg+0x8e8/0xc50 [ 24.875022] [] ? netlink_unicast+0x750/0x750 [ 24.881052] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 24.887510] [] ? security_socket_sendmsg+0x89/0xb0 [ 24.894078] [] ? netlink_unicast+0x750/0x750 [ 24.900123] [] sock_sendmsg+0xca/0x110 [ 24.905630] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.911397] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.917956] [] ? __lru_cache_add+0x187/0x250 [ 24.923997] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 24.931066] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.937007] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.944075] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.950191] [] ? __lock_is_held+0xa1/0xf0 [ 24.955955] [] ? __pmd_alloc+0x410/0x410 [ 24.961637] [] ? __fget_light+0x158/0x1e0 [ 24.967410] [] ? __fdget+0x18/0x20 [ 24.972571] [] __sys_sendmsg+0xd6/0x190 executing program [ 24.978173] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.983945] [] ? __do_page_fault+0x5ec/0xd40 [ 24.989972] [] ? __do_page_fault+0x3bd/0xd40 [ 24.995999] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.002808] [] SyS_sendmsg+0x2d/0x50 [ 25.008138] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 25.016989] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 25.025695] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.031175] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 25.038853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.048181] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 25.056445] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 25.064440] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 25.072425] Call Trace: [ 25.074990] [] dump_stack+0xc1/0x128 [ 25.080324] [] check_preemption_disabled+0x1d4/0x200 [ 25.087054] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.093519] [] ipcomp_init_state+0x188/0x930 [ 25.099548] [] ? __lock_is_held+0xa1/0xf0 [ 25.105314] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.111338] [] __xfrm_init_state+0x3e7/0xb30 [ 25.117365] [] xfrm_add_sa+0x1916/0x2e40 [ 25.123045] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.129855] [] ? nla_parse+0x213/0x260 [ 25.135361] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.142168] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.148191] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.154216] [] netlink_rcv_skb+0x13e/0x370 [ 25.160067] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.166093] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.171858] [] netlink_unicast+0x511/0x750 [ 25.177708] [] ? netlink_unicast+0x43c/0x750 [ 25.183737] [] ? netlink_attachskb+0x680/0x680 [ 25.189935] [] netlink_sendmsg+0x8e8/0xc50 [ 25.195787] [] ? netlink_unicast+0x750/0x750 [ 25.201812] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.208270] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.214815] [] ? netlink_unicast+0x750/0x750 [ 25.220840] [] sock_sendmsg+0xca/0x110 [ 25.226344] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.232134] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.238686] [] ? __lru_cache_add+0x187/0x250 [ 25.244715] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 25.251797] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.257746] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 25.264815] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.270931] [] ? __lock_is_held+0xa1/0xf0 [ 25.276701] [] ? __pmd_alloc+0x410/0x410 [ 25.282380] [] ? __fget_light+0x158/0x1e0 [ 25.288144] [] ? __fdget+0x18/0x20 [ 25.293302] [] __sys_sendmsg+0xd6/0x190 [ 25.298909] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.304685] [] ? __do_page_fault+0x5ec/0xd40 [ 25.310752] [] ? __do_page_fault+0x3bd/0xd40 [ 25.316798] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.323609] [] SyS_sendmsg+0x2d/0x50 executing program [ 25.328946] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 25.338188] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 25.346877] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.352363] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 25.360041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.369370] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 25.377325] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 25.385278] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 25.393232] Call Trace: [ 25.395790] [] dump_stack+0xc1/0x128 [ 25.401126] [] check_preemption_disabled+0x1d4/0x200 [ 25.407847] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.414310] [] ipcomp_init_state+0x188/0x930 [ 25.420337] [] ? __lock_is_held+0xa1/0xf0 [ 25.426106] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.432135] [] __xfrm_init_state+0x3e7/0xb30 [ 25.438159] [] xfrm_add_sa+0x1916/0x2e40 [ 25.443840] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.450649] [] ? nla_parse+0x213/0x260 [ 25.456155] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.462971] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.468997] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.475035] [] netlink_rcv_skb+0x13e/0x370 [ 25.480896] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.486925] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.492691] [] netlink_unicast+0x511/0x750 [ 25.498542] [] ? netlink_unicast+0x43c/0x750 [ 25.504568] [] ? netlink_attachskb+0x680/0x680 [ 25.510858] [] netlink_sendmsg+0x8e8/0xc50 [ 25.516709] [] ? netlink_unicast+0x750/0x750 [ 25.522735] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.529194] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.535740] [] ? netlink_unicast+0x750/0x750 [ 25.541768] [] sock_sendmsg+0xca/0x110 [ 25.547297] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.553066] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.559616] [] ? __lru_cache_add+0x187/0x250 [ 25.565645] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 25.572720] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.578660] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 25.585732] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.591849] [] ? __lock_is_held+0xa1/0xf0 [ 25.597613] [] ? __pmd_alloc+0x410/0x410 [ 25.603294] [] ? __fget_light+0x158/0x1e0 [ 25.609057] [] ? __fdget+0x18/0x20 [ 25.614217] [] __sys_sendmsg+0xd6/0x190 [ 25.619807] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.625579] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 25.631606] [] ? __do_page_fault+0x3bd/0xd40 [ 25.637635] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.644442] [] SyS_sendmsg+0x2d/0x50 [ 25.649776] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 25.658527] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 25.667188] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.672864] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 25.680557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.689889] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 25.697857] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 25.705815] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 25.713765] Call Trace: [ 25.716338] [] dump_stack+0xc1/0x128 [ 25.721681] [] check_preemption_disabled+0x1d4/0x200 [ 25.728401] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.734860] [] ipcomp_init_state+0x188/0x930 [ 25.740886] [] ? __lock_is_held+0xa1/0xf0 [ 25.746653] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.752675] [] __xfrm_init_state+0x3e7/0xb30 [ 25.759021] [] xfrm_add_sa+0x1916/0x2e40 [ 25.766949] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.774019] [] ? nla_parse+0x213/0x260 [ 25.779524] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.786327] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.792351] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.798376] [] netlink_rcv_skb+0x13e/0x370 [ 25.804227] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.810250] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.816014] [] netlink_unicast+0x511/0x750 [ 25.821863] [] ? netlink_unicast+0x43c/0x750 [ 25.827886] [] ? netlink_attachskb+0x680/0x680 [ 25.834086] [] netlink_sendmsg+0x8e8/0xc50 [ 25.839938] [] ? netlink_unicast+0x750/0x750 [ 25.845969] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.852429] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.858986] [] ? netlink_unicast+0x750/0x750 [ 25.865012] [] sock_sendmsg+0xca/0x110 [ 25.870518] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.876282] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.882833] [] ? __lru_cache_add+0x187/0x250 [ 25.888860] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 25.895935] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.901874] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 25.908944] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.915319] [] ? __lock_is_held+0xa1/0xf0 [ 25.921445] [] ? __pmd_alloc+0x410/0x410 [ 25.927134] [] ? __fget_light+0x158/0x1e0 executing program [ 25.932898] [] ? __fdget+0x18/0x20 [ 25.938053] [] __sys_sendmsg+0xd6/0x190 [ 25.943642] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.949405] [] ? __do_page_fault+0x5ec/0xd40 [ 25.955442] [] ? __do_page_fault+0x3bd/0xd40 [ 25.961479] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.968291] [] SyS_sendmsg+0x2d/0x50 [ 25.973627] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 25.982196] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 25.990907] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.996335] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 26.004012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.013339] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 26.021297] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 26.029249] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 26.037204] Call Trace: [ 26.039766] [] dump_stack+0xc1/0x128 [ 26.045100] [] check_preemption_disabled+0x1d4/0x200 [ 26.051822] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.058287] [] ipcomp_init_state+0x188/0x930 [ 26.064317] [] ? __lock_is_held+0xa1/0xf0 [ 26.070098] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.076123] [] __xfrm_init_state+0x3e7/0xb30 [ 26.082151] [] xfrm_add_sa+0x1916/0x2e40 [ 26.087830] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.094643] [] ? nla_parse+0x213/0x260 [ 26.100149] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.106956] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.112983] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.119011] [] netlink_rcv_skb+0x13e/0x370 [ 26.124860] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.130888] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.136655] [] netlink_unicast+0x511/0x750 [ 26.142508] [] ? netlink_unicast+0x43c/0x750 [ 26.148534] [] ? netlink_attachskb+0x680/0x680 [ 26.154736] [] netlink_sendmsg+0x8e8/0xc50 [ 26.160589] [] ? netlink_unicast+0x750/0x750 [ 26.166618] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.173081] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.179628] [] ? netlink_unicast+0x750/0x750 [ 26.185655] [] sock_sendmsg+0xca/0x110 [ 26.191173] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.196939] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.203491] [] ? __lru_cache_add+0x187/0x250 [ 26.209533] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 26.216993] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.222942] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 26.230010] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.236127] [] ? __lock_is_held+0xa1/0xf0 [ 26.241890] [] ? __pmd_alloc+0x410/0x410 [ 26.247573] [] ? __fget_light+0x158/0x1e0 [ 26.253347] [] ? __fdget+0x18/0x20 [ 26.258517] [] __sys_sendmsg+0xd6/0x190 [ 26.264112] [] ? SyS_shutdown+0x1b0/0x1b0 [ 26.269883] [] ? __do_page_fault+0x5ec/0xd40 [ 26.275912] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 26.281944] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 26.288857] [] SyS_sendmsg+0x2d/0x50 [ 26.294193] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 26.302848] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 26.311541] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.316965] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 26.324640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.333968] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 26.341926] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 26.349905] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 26.357857] Call Trace: [ 26.360417] [] dump_stack+0xc1/0x128 [ 26.365747] [] check_preemption_disabled+0x1d4/0x200 [ 26.372464] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.378925] [] ipcomp_init_state+0x188/0x930 [ 26.384956] [] ? __lock_is_held+0xa1/0xf0 [ 26.390720] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.398972] [] __xfrm_init_state+0x3e7/0xb30 [ 26.404995] [] xfrm_add_sa+0x1916/0x2e40 [ 26.410678] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.417482] [] ? nla_parse+0x213/0x260 [ 26.422988] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.429795] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.435815] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.441842] [] netlink_rcv_skb+0x13e/0x370 [ 26.447691] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.453712] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.459482] [] netlink_unicast+0x511/0x750 [ 26.465329] [] ? netlink_unicast+0x43c/0x750 [ 26.471354] [] ? netlink_attachskb+0x680/0x680 [ 26.477562] [] netlink_sendmsg+0x8e8/0xc50 [ 26.483502] [] ? netlink_unicast+0x750/0x750 [ 26.489529] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.495988] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.502537] [] ? netlink_unicast+0x750/0x750 [ 26.508736] [] sock_sendmsg+0xca/0x110 [ 26.514237] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.520614] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.527770] [] ? __lru_cache_add+0x187/0x250 [ 26.533793] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 26.540860] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.546795] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 26.553859] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.559969] [] ? __lock_is_held+0xa1/0xf0 [ 26.565730] [] ? __pmd_alloc+0x410/0x410 [ 26.571407] [] ? __fget_light+0x158/0x1e0 [ 26.577166] [] ? __fdget+0x18/0x20 executing program [ 26.582320] [] __sys_sendmsg+0xd6/0x190 [ 26.587908] [] ? SyS_shutdown+0x1b0/0x1b0 [ 26.593672] [] ? __do_page_fault+0x5ec/0xd40 [ 26.599694] [] ? __do_page_fault+0x3bd/0xd40 [ 26.605714] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 26.612518] [] SyS_sendmsg+0x2d/0x50 [ 26.617845] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 26.626967] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 26.635663] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.641115] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 26.648797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.658119] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 26.666079] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 26.674028] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 26.681973] Call Trace: [ 26.684529] [] dump_stack+0xc1/0x128 [ 26.689859] [] check_preemption_disabled+0x1d4/0x200 [ 26.696577] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.703038] [] ipcomp_init_state+0x188/0x930 [ 26.709067] [] ? __lock_is_held+0xa1/0xf0 [ 26.714830] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.720853] [] __xfrm_init_state+0x3e7/0xb30 [ 26.727134] [] xfrm_add_sa+0x1916/0x2e40 [ 26.732904] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.739711] [] ? nla_parse+0x213/0x260 [ 26.745214] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.752020] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.758044] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.764078] [] netlink_rcv_skb+0x13e/0x370 [ 26.769930] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.776216] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.782326] [] netlink_unicast+0x511/0x750 [ 26.788177] [] ? netlink_unicast+0x43c/0x750 [ 26.794200] [] ? netlink_attachskb+0x680/0x680 [ 26.800398] [] netlink_sendmsg+0x8e8/0xc50 [ 26.806681] [] ? netlink_unicast+0x750/0x750 [ 26.812707] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.819167] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.825722] [] ? netlink_unicast+0x750/0x750 [ 26.831759] [] sock_sendmsg+0xca/0x110 [ 26.837261] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.843025] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.849573] [] ? __lru_cache_add+0x187/0x250 [ 26.855599] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 26.862665] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.868620] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 26.875949] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.882328] [] ? __lock_is_held+0xa1/0xf0 [ 26.888095] [] ? __pmd_alloc+0x410/0x410 [ 26.894118] [] ? __fget_light+0x158/0x1e0 [ 26.899884] [] ? __fdget+0x18/0x20 [ 26.905039] [] __sys_sendmsg+0xd6/0x190 [ 26.910803] [] ? SyS_shutdown+0x1b0/0x1b0 [ 26.916569] [] ? __do_page_fault+0x5ec/0xd40 [ 26.922705] [] ? __do_page_fault+0x3bd/0xd40 [ 26.929598] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 26.936403] [] SyS_sendmsg+0x2d/0x50 [ 26.941733] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 26.950706] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 26.959397] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.964826] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 26.972497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.981818] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 26.989782] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 26.997746] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 27.005706] Call Trace: [ 27.008260] [] dump_stack+0xc1/0x128 [ 27.013590] [] check_preemption_disabled+0x1d4/0x200 [ 27.021003] [] __this_cpu_preempt_check+0x1c/0x20 [ 27.027461] [] ipcomp_init_state+0x188/0x930 [ 27.033486] [] ? __lock_is_held+0xa1/0xf0 [ 27.039250] [] ipcomp4_init_state+0xb0/0x7d0 [ 27.045275] [] __xfrm_init_state+0x3e7/0xb30 [ 27.051298] [] xfrm_add_sa+0x1916/0x2e40 [ 27.056974] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.064040] [] ? nla_parse+0x213/0x260 [ 27.069542] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.076348] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 27.082372] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.088396] [] netlink_rcv_skb+0x13e/0x370 [ 27.094245] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.100268] [] xfrm_netlink_rcv+0x6f/0x90 [ 27.107767] [] netlink_unicast+0x511/0x750 [ 27.113624] [] ? netlink_unicast+0x43c/0x750 [ 27.119648] [] ? netlink_attachskb+0x680/0x680 [ 27.125846] [] netlink_sendmsg+0x8e8/0xc50 [ 27.131696] [] ? netlink_unicast+0x750/0x750 [ 27.137721] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 27.144183] [] ? security_socket_sendmsg+0x89/0xb0 [ 27.150729] [] ? netlink_unicast+0x750/0x750 [ 27.156755] [] sock_sendmsg+0xca/0x110 [ 27.162261] [] ___sys_sendmsg+0x6d1/0x7e0 [ 27.168024] [] ? copy_msghdr_from_user+0x550/0x550 [ 27.174570] [] ? __lru_cache_add+0x187/0x250 [ 27.180596] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 27.187663] [] ? _raw_spin_unlock+0x2c/0x50 [ 27.193602] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 27.200667] [] ? handle_mm_fault+0x6ee/0x2530 [ 27.206872] [] ? __lock_is_held+0xa1/0xf0 [ 27.212643] [] ? __pmd_alloc+0x410/0x410 [ 27.218320] [] ? __fget_light+0x158/0x1e0 [ 27.224083] [] ? __fdget+0x18/0x20 [ 27.229239] [] __sys_sendmsg+0xd6/0x190 executing program [ 27.234828] [] ? SyS_shutdown+0x1b0/0x1b0 [ 27.240593] [] ? __do_page_fault+0x5ec/0xd40 [ 27.246626] [] ? __do_page_fault+0x3bd/0xd40 [ 27.252653] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.259457] [] SyS_sendmsg+0x2d/0x50 [ 27.264786] [] entry_SYSCALL_64_fastpath+0x23/0xe2 [ 27.273763] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller104318/3326 [ 27.282884] caller is __this_cpu_preempt_check+0x1c/0x20 [ 27.288327] CPU: 0 PID: 3326 Comm: syzkaller104318 Not tainted 4.9.76-g8e170a5 #11 [ 27.296009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.305332] ffff8801c8eb7490 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 27.313293] ffffffff83f44900 ffff8801c9a89800 0000000000000003 ffff8801c8eb74d0 [ 27.321243] ffffffff81dfa714 ffff8801c8eb74e8 ffffffff83f44900 dffffc0000000000 [ 27.329197] Call Trace: [ 27.331751] [] dump_stack+0xc1/0x128 [ 27.337081] [] check_preemption_disabled+0x1d4/0x200 [ 27.343808] [] __this_cpu_preempt_check+0x1c/0x20 [ 27.350265] [] ipcomp_init_state+0x188/0x930 [ 27.356290] [] ? __lock_is_held+0xa1/0xf0 [ 27.362052] [] ipcomp4_init_state+0xb0/0x7d0 [ 27.369242] [] __xfrm_init_state+0x3e7/0xb30 [ 27.377091] [] xfrm_add_sa+0x1916/0x2e40 [ 27.383030] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.390184] [] ? nla_parse+0x213/0x260 [ 27.395686] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.402491] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 27.408515] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.414541] [] netlink_rcv_skb+0x13e/0x370 [ 27.420398] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.426420] [] xfrm_netlink_rcv+0x6f/0x90 [ 27.432183] [] netlink_unicast+0x511/0x750 [ 27.438032] [] ? netlink_unicast+0x43c/0x750 [ 27.444055] [] ? netlink_attachskb+0x680/0x680 [ 27.450260] [] netlink_sendmsg+0x8e8/0xc50 [ 27.456116] [] ? netlink_unicast+0x750/0x750 [ 27.462140] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 27.468597] [] ? security_socket_sendmsg+0x89/0xb0 [ 27.475143] [] ? netlink_unicast+0x750/0x750 [ 27.481602] [] sock_sendmsg+0xca/0x110 [ 27.487107] [] ___sys_sendmsg+0x6d1/0x7e0 [ 27.492870] [] ? copy_msghdr_from_user+0x550/0x550 [ 27.499416] [] ? __lru_cache_add+0x187/0x250 [ 27.505449] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 27.512523] [] ? _raw_spin_unlock+0x2c/0x50 [ 27.518460] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 27.525525] [] ? handle_mm_fault+0x6ee/0x2530 [ 27.531636] [] ? __lock_is_held+0xa1/0xf0 [ 27.537399] [] ? __pmd_alloc+0x410/0x410 [ 27.543091] [] ? __fget_light+0x158/0x1e0 [ 27.548853] [] ? __fdget+0x18/0x20 [ 27.554007] [] __sys_sendmsg+0xd6/0x190 [ 27.559595] [] ? SyS_shutdown+0x1b0/0x1b0 [ 27.565358] [] ? __do_page_fault+0x5ec/0xd40 [ 27.571381] [] ? __do_page_fault+0x3bd/0xd40 [ 27.577404] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.584213] [] SyS_sendmsg+0x2d/0x50 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 27.589553] [] entry_SYSCALL_64_fastpath+0x23/0xe2 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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