[....] Starting enhanced syslogd: rsyslogd[ 12.873386] audit: type=1400 audit(1517173465.450:4): avc: denied { syslog } for pid=3189 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.30' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 37.593588] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 37.602364] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.607799] CPU: 1 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 37.615475] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.624812] ffff8801c82e7490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 [ 37.632780] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 37.640762] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 37.648726] Call Trace: [ 37.651287] [] dump_stack+0xc1/0x128 [ 37.656620] [] check_preemption_disabled+0x1d4/0x200 [ 37.663340] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.669801] [] ipcomp_init_state+0x188/0x930 [ 37.675829] [] ? __lock_is_held+0xa1/0xf0 [ 37.681598] [] ipcomp4_init_state+0xb0/0x7d0 [ 37.687628] [] __xfrm_init_state+0x3e7/0xb30 [ 37.693664] [] xfrm_add_sa+0x1916/0x2e40 [ 37.699353] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 37.706159] [] ? nla_parse+0x213/0x260 [ 37.711666] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 37.718491] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 37.724524] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 37.730558] [] netlink_rcv_skb+0x13e/0x370 [ 37.736419] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 37.742453] [] xfrm_netlink_rcv+0x6f/0x90 [ 37.748218] [] netlink_unicast+0x511/0x750 [ 37.754072] [] ? netlink_unicast+0x43c/0x750 [ 37.760100] [] ? netlink_attachskb+0x680/0x680 [ 37.766300] [] netlink_sendmsg+0x8e8/0xc50 [ 37.772171] [] ? netlink_unicast+0x750/0x750 [ 37.778200] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 37.784663] [] ? security_socket_sendmsg+0x89/0xb0 [ 37.791210] [] ? netlink_unicast+0x750/0x750 [ 37.797236] [] sock_sendmsg+0xca/0x110 [ 37.802741] [] ___sys_sendmsg+0x6d1/0x7e0 [ 37.808505] [] ? copy_msghdr_from_user+0x550/0x550 [ 37.815054] [] ? __lru_cache_add+0x187/0x250 [ 37.821084] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 37.828154] [] ? _raw_spin_unlock+0x2c/0x50 [ 37.834103] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 37.841173] [] ? handle_mm_fault+0x6ee/0x2530 [ 37.847288] [] ? __lock_is_held+0xa1/0xf0 [ 37.853052] [] ? __pmd_alloc+0x410/0x410 [ 37.858733] [] ? __fget_light+0x158/0x1e0 [ 37.864497] [] ? __fdget+0x18/0x20 [ 37.869660] [] __sys_sendmsg+0xd6/0x190 [ 37.875253] [] ? SyS_shutdown+0x1b0/0x1b0 [ 37.881021] [] ? __do_page_fault+0x5ec/0xd40 [ 37.887049] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 37.893074] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 37.899889] [] SyS_sendmsg+0x2d/0x50 [ 37.905225] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 37.915412] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 37.924246] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.929673] CPU: 1 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 37.937349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.946686] ffff8801c82e7490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 [ 37.954658] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 37.962626] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 37.970593] Call Trace: [ 37.973153] [] dump_stack+0xc1/0x128 [ 37.978487] [] check_preemption_disabled+0x1d4/0x200 [ 37.985206] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.991672] [] ipcomp_init_state+0x188/0x930 [ 37.997701] [] ? __lock_is_held+0xa1/0xf0 [ 38.003484] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.009512] [] __xfrm_init_state+0x3e7/0xb30 [ 38.015541] [] xfrm_add_sa+0x1916/0x2e40 [ 38.021220] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.028042] [] ? nla_parse+0x213/0x260 [ 38.033558] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.040371] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 38.046399] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.052427] [] netlink_rcv_skb+0x13e/0x370 [ 38.058280] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.064309] [] xfrm_netlink_rcv+0x6f/0x90 [ 38.070073] [] netlink_unicast+0x511/0x750 [ 38.075926] [] ? netlink_unicast+0x43c/0x750 [ 38.081953] [] ? netlink_attachskb+0x680/0x680 [ 38.088154] [] netlink_sendmsg+0x8e8/0xc50 [ 38.094014] [] ? netlink_unicast+0x750/0x750 [ 38.100045] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 38.106506] [] ? security_socket_sendmsg+0x89/0xb0 [ 38.113051] [] ? netlink_unicast+0x750/0x750 [ 38.119080] [] sock_sendmsg+0xca/0x110 [ 38.124593] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.130359] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.136909] [] ? __lru_cache_add+0x187/0x250 [ 38.142936] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.150003] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.155943] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.163012] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.169127] [] ? __lock_is_held+0xa1/0xf0 [ 38.174891] [] ? __pmd_alloc+0x410/0x410 [ 38.180572] [] ? __fget_light+0x158/0x1e0 [ 38.186351] [] ? __fdget+0x18/0x20 executing program [ 38.191509] [] __sys_sendmsg+0xd6/0x190 [ 38.197100] [] ? SyS_shutdown+0x1b0/0x1b0 [ 38.202868] [] ? __do_page_fault+0x5ec/0xd40 [ 38.208894] [] ? __do_page_fault+0x3bd/0xd40 [ 38.214921] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.221729] [] SyS_sendmsg+0x2d/0x50 [ 38.227064] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 38.237264] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 38.245965] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.251391] CPU: 1 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 38.259070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.268397] ffff8801c82e7490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 [ 38.276360] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 38.284324] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 38.292459] Call Trace: [ 38.295017] [] dump_stack+0xc1/0x128 [ 38.300348] [] check_preemption_disabled+0x1d4/0x200 [ 38.307069] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.313539] [] ipcomp_init_state+0x188/0x930 [ 38.319652] [] ? __lock_is_held+0xa1/0xf0 [ 38.325431] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.331462] [] __xfrm_init_state+0x3e7/0xb30 [ 38.337489] [] xfrm_add_sa+0x1916/0x2e40 [ 38.343169] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.349978] [] ? nla_parse+0x213/0x260 [ 38.355485] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.362291] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 38.368316] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.374352] [] netlink_rcv_skb+0x13e/0x370 [ 38.380207] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.386232] [] xfrm_netlink_rcv+0x6f/0x90 [ 38.391996] [] netlink_unicast+0x511/0x750 [ 38.397847] [] ? netlink_unicast+0x43c/0x750 [ 38.403872] [] ? netlink_attachskb+0x680/0x680 [ 38.410073] [] netlink_sendmsg+0x8e8/0xc50 [ 38.415927] [] ? netlink_unicast+0x750/0x750 [ 38.421956] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 38.428418] [] ? security_socket_sendmsg+0x89/0xb0 [ 38.434972] [] ? netlink_unicast+0x750/0x750 [ 38.440999] [] sock_sendmsg+0xca/0x110 [ 38.446507] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.452285] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.458836] [] ? __lru_cache_add+0x187/0x250 [ 38.464866] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.471934] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.477876] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.484945] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.491060] [] ? __lock_is_held+0xa1/0xf0 [ 38.496824] [] ? __pmd_alloc+0x410/0x410 [ 38.502504] [] ? __fget_light+0x158/0x1e0 [ 38.508267] [] ? __fdget+0x18/0x20 [ 38.513423] [] __sys_sendmsg+0xd6/0x190 [ 38.519016] [] ? SyS_shutdown+0x1b0/0x1b0 [ 38.524786] [] ? __do_page_fault+0x5ec/0xd40 [ 38.530813] [] ? __do_page_fault+0x3bd/0xd40 [ 38.536841] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 38.543650] [] SyS_sendmsg+0x2d/0x50 [ 38.548981] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 38.558895] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 38.567626] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.573074] CPU: 1 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 38.580751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.590084] ffff8801c82e7490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 [ 38.598059] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 38.606024] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 38.613990] Call Trace: [ 38.616552] [] dump_stack+0xc1/0x128 [ 38.621883] [] check_preemption_disabled+0x1d4/0x200 [ 38.628610] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.635078] [] ipcomp_init_state+0x188/0x930 [ 38.641105] [] ? __lock_is_held+0xa1/0xf0 [ 38.646878] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.652905] [] __xfrm_init_state+0x3e7/0xb30 [ 38.658930] [] xfrm_add_sa+0x1916/0x2e40 [ 38.664611] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.671516] [] ? nla_parse+0x213/0x260 [ 38.677019] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.683825] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 38.689853] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.695971] [] netlink_rcv_skb+0x13e/0x370 [ 38.701831] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 38.707855] [] xfrm_netlink_rcv+0x6f/0x90 [ 38.713627] [] netlink_unicast+0x511/0x750 [ 38.719478] [] ? netlink_unicast+0x43c/0x750 [ 38.725503] [] ? netlink_attachskb+0x680/0x680 [ 38.731702] [] netlink_sendmsg+0x8e8/0xc50 [ 38.737560] [] ? netlink_unicast+0x750/0x750 [ 38.743592] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 38.750056] [] ? security_socket_sendmsg+0x89/0xb0 [ 38.756602] [] ? netlink_unicast+0x750/0x750 [ 38.762630] [] sock_sendmsg+0xca/0x110 [ 38.768134] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.773909] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.780458] [] ? __lru_cache_add+0x187/0x250 [ 38.786487] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.793568] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.799507] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.806578] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.812691] [] ? __lock_is_held+0xa1/0xf0 [ 38.818456] [] ? __pmd_alloc+0x410/0x410 [ 38.824138] [] ? __fget_light+0x158/0x1e0 [ 38.829902] [] ? __fdget+0x18/0x20 [ 38.835077] [] __sys_sendmsg+0xd6/0x190 [ 38.840678] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 38.846454] [] ? __do_page_fault+0x5ec/0xd40 [ 38.852488] [] ? __do_page_fault+0x3bd/0xd40 [ 38.858518] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.865324] [] SyS_sendmsg+0x2d/0x50 [ 38.870658] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 38.880884] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 38.889637] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.895100] CPU: 0 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 38.902781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.912115] ffff8801c82e7490 ffffffff81d943a9 0000000000000000 ffffffff83c18800 [ 38.920087] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 38.928049] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 38.936025] Call Trace: [ 38.938588] [] dump_stack+0xc1/0x128 [ 38.943924] [] check_preemption_disabled+0x1d4/0x200 [ 38.950643] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.957109] [] ipcomp_init_state+0x188/0x930 [ 38.963141] [] ? __lock_is_held+0xa1/0xf0 [ 38.968909] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.974947] [] __xfrm_init_state+0x3e7/0xb30 [ 38.980976] [] xfrm_add_sa+0x1916/0x2e40 [ 38.986657] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 38.993478] [] ? nla_parse+0x213/0x260 [ 38.998987] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.005806] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 39.011835] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.017873] [] netlink_rcv_skb+0x13e/0x370 [ 39.023728] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.029759] [] xfrm_netlink_rcv+0x6f/0x90 [ 39.035527] [] netlink_unicast+0x511/0x750 [ 39.041397] [] ? netlink_unicast+0x43c/0x750 [ 39.047437] [] ? netlink_attachskb+0x680/0x680 [ 39.053638] [] netlink_sendmsg+0x8e8/0xc50 [ 39.059503] [] ? netlink_unicast+0x750/0x750 [ 39.065534] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 39.072015] [] ? security_socket_sendmsg+0x89/0xb0 [ 39.078587] [] ? netlink_unicast+0x750/0x750 [ 39.084618] [] sock_sendmsg+0xca/0x110 [ 39.090125] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.095894] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.102446] [] ? __lru_cache_add+0x187/0x250 [ 39.108478] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.115549] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.121490] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.128564] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.134679] [] ? __lock_is_held+0xa1/0xf0 [ 39.140447] [] ? __pmd_alloc+0x410/0x410 executing program [ 39.146130] [] ? __fget_light+0x158/0x1e0 [ 39.151894] [] ? __fdget+0x18/0x20 [ 39.157055] [] __sys_sendmsg+0xd6/0x190 [ 39.162646] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.168417] [] ? __do_page_fault+0x5ec/0xd40 [ 39.174444] [] ? __do_page_fault+0x3bd/0xd40 [ 39.180473] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.187279] [] SyS_sendmsg+0x2d/0x50 [ 39.192625] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 39.203551] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 39.212365] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.217791] CPU: 0 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 39.225510] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.234845] ffff8801c82e7490 ffffffff81d943a9 0000000000000000 ffffffff83c18800 [ 39.242830] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 39.250798] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 39.258777] Call Trace: [ 39.261340] [] dump_stack+0xc1/0x128 [ 39.266682] [] check_preemption_disabled+0x1d4/0x200 [ 39.273409] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.279875] [] ipcomp_init_state+0x188/0x930 [ 39.285905] [] ? __lock_is_held+0xa1/0xf0 [ 39.291672] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.297704] [] __xfrm_init_state+0x3e7/0xb30 [ 39.303742] [] xfrm_add_sa+0x1916/0x2e40 [ 39.309433] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.316250] [] ? nla_parse+0x213/0x260 [ 39.321764] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.328578] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 39.334692] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.340721] [] netlink_rcv_skb+0x13e/0x370 [ 39.346576] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.352688] [] xfrm_netlink_rcv+0x6f/0x90 [ 39.358453] [] netlink_unicast+0x511/0x750 [ 39.364316] [] ? netlink_unicast+0x43c/0x750 [ 39.370349] [] ? netlink_attachskb+0x680/0x680 [ 39.376556] [] netlink_sendmsg+0x8e8/0xc50 [ 39.382419] [] ? netlink_unicast+0x750/0x750 [ 39.388449] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 39.394947] [] ? security_socket_sendmsg+0x89/0xb0 [ 39.401503] [] ? netlink_unicast+0x750/0x750 [ 39.407533] [] sock_sendmsg+0xca/0x110 [ 39.413038] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.418809] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.425359] [] ? __lru_cache_add+0x187/0x250 [ 39.431390] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.438462] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.444403] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.451491] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.457605] [] ? __lock_is_held+0xa1/0xf0 [ 39.463370] [] ? __pmd_alloc+0x410/0x410 [ 39.469054] [] ? __fget_light+0x158/0x1e0 [ 39.474820] [] ? __fdget+0x18/0x20 [ 39.479977] [] __sys_sendmsg+0xd6/0x190 [ 39.485570] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.491336] [] ? __do_page_fault+0x5ec/0xd40 [ 39.497369] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 39.503395] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.510212] [] SyS_sendmsg+0x2d/0x50 [ 39.515543] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 39.525868] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 39.534593] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.540018] CPU: 0 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 39.547692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.557113] ffff8801c82e7490 ffffffff81d943a9 0000000000000000 ffffffff83c18800 [ 39.565088] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 39.573050] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 39.581020] Call Trace: [ 39.583578] [] dump_stack+0xc1/0x128 [ 39.588909] [] check_preemption_disabled+0x1d4/0x200 [ 39.595637] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.602098] [] ipcomp_init_state+0x188/0x930 [ 39.608213] [] ? __lock_is_held+0xa1/0xf0 [ 39.613980] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.620007] [] __xfrm_init_state+0x3e7/0xb30 [ 39.626038] [] xfrm_add_sa+0x1916/0x2e40 [ 39.631719] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.638527] [] ? nla_parse+0x213/0x260 [ 39.644035] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.650854] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 39.656880] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.662917] [] netlink_rcv_skb+0x13e/0x370 [ 39.668771] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.674795] [] xfrm_netlink_rcv+0x6f/0x90 [ 39.680567] [] netlink_unicast+0x511/0x750 [ 39.686416] [] ? netlink_unicast+0x43c/0x750 [ 39.692450] [] ? netlink_attachskb+0x680/0x680 [ 39.698651] [] netlink_sendmsg+0x8e8/0xc50 [ 39.704501] [] ? netlink_unicast+0x750/0x750 [ 39.710527] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 39.716996] [] ? security_socket_sendmsg+0x89/0xb0 [ 39.723541] [] ? netlink_unicast+0x750/0x750 [ 39.729577] [] sock_sendmsg+0xca/0x110 [ 39.735081] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.740848] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.747409] [] ? __lru_cache_add+0x187/0x250 [ 39.753448] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.760524] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.766465] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.773698] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.779814] [] ? __lock_is_held+0xa1/0xf0 [ 39.785578] [] ? __pmd_alloc+0x410/0x410 [ 39.791259] [] ? __fget_light+0x158/0x1e0 [ 39.797023] [] ? __fdget+0x18/0x20 executing program [ 39.802178] [] __sys_sendmsg+0xd6/0x190 [ 39.807978] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.813746] [] ? __do_page_fault+0x5ec/0xd40 [ 39.819769] [] ? __do_page_fault+0x3bd/0xd40 [ 39.825795] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.832614] [] SyS_sendmsg+0x2d/0x50 [ 39.837945] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 39.848432] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 39.857150] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.862597] CPU: 0 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 39.870274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.879606] ffff8801c82e7490 ffffffff81d943a9 0000000000000000 ffffffff83c18800 [ 39.887574] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 39.895550] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 39.903518] Call Trace: [ 39.906078] [] dump_stack+0xc1/0x128 [ 39.911415] [] check_preemption_disabled+0x1d4/0x200 [ 39.918148] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.924611] [] ipcomp_init_state+0x188/0x930 [ 39.930646] [] ? __lock_is_held+0xa1/0xf0 [ 39.936415] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.942440] [] __xfrm_init_state+0x3e7/0xb30 [ 39.948469] [] xfrm_add_sa+0x1916/0x2e40 [ 39.954147] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.960965] [] ? nla_parse+0x213/0x260 [ 39.966471] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 39.973277] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 39.979309] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.985338] [] netlink_rcv_skb+0x13e/0x370 [ 39.991191] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 39.997215] [] xfrm_netlink_rcv+0x6f/0x90 [ 40.002992] [] netlink_unicast+0x511/0x750 [ 40.008846] [] ? netlink_unicast+0x43c/0x750 [ 40.014873] [] ? netlink_attachskb+0x680/0x680 [ 40.021075] [] netlink_sendmsg+0x8e8/0xc50 [ 40.026932] [] ? netlink_unicast+0x750/0x750 [ 40.032957] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 40.039419] [] ? security_socket_sendmsg+0x89/0xb0 [ 40.045965] [] ? netlink_unicast+0x750/0x750 [ 40.051996] [] sock_sendmsg+0xca/0x110 [ 40.057510] [] ___sys_sendmsg+0x6d1/0x7e0 [ 40.063277] [] ? copy_msghdr_from_user+0x550/0x550 [ 40.069828] [] ? __lru_cache_add+0x187/0x250 [ 40.075855] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 40.082923] [] ? _raw_spin_unlock+0x2c/0x50 [ 40.088863] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 40.095931] [] ? handle_mm_fault+0x6ee/0x2530 [ 40.102044] [] ? __lock_is_held+0xa1/0xf0 [ 40.107821] [] ? __pmd_alloc+0x410/0x410 [ 40.113503] [] ? __fget_light+0x158/0x1e0 [ 40.119269] [] ? __fdget+0x18/0x20 [ 40.124435] [] __sys_sendmsg+0xd6/0x190 [ 40.130027] [] ? SyS_shutdown+0x1b0/0x1b0 [ 40.135793] [] ? __do_page_fault+0x5ec/0xd40 [ 40.141824] [] ? __do_page_fault+0x3bd/0xd40 [ 40.147854] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 40.154665] [] SyS_sendmsg+0x2d/0x50 [ 40.159998] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 40.169947] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 40.178652] caller is __this_cpu_preempt_check+0x1c/0x20 [ 40.184195] CPU: 0 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 40.191873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.201203] ffff8801c82e7490 ffffffff81d943a9 0000000000000000 ffffffff83c18800 [ 40.209184] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 40.217155] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 40.225119] Call Trace: [ 40.227678] [] dump_stack+0xc1/0x128 [ 40.233008] [] check_preemption_disabled+0x1d4/0x200 [ 40.239730] [] __this_cpu_preempt_check+0x1c/0x20 [ 40.246191] [] ipcomp_init_state+0x188/0x930 [ 40.252235] [] ? __lock_is_held+0xa1/0xf0 [ 40.258000] [] ipcomp4_init_state+0xb0/0x7d0 [ 40.264025] [] __xfrm_init_state+0x3e7/0xb30 [ 40.270052] [] xfrm_add_sa+0x1916/0x2e40 [ 40.275748] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 40.282560] [] ? nla_parse+0x213/0x260 [ 40.288065] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 40.294883] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 40.300908] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 40.306935] [] netlink_rcv_skb+0x13e/0x370 [ 40.312791] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 40.318814] [] xfrm_netlink_rcv+0x6f/0x90 [ 40.324579] [] netlink_unicast+0x511/0x750 [ 40.330458] [] ? netlink_unicast+0x43c/0x750 [ 40.336528] [] ? netlink_attachskb+0x680/0x680 [ 40.342731] [] netlink_sendmsg+0x8e8/0xc50 [ 40.348586] [] ? netlink_unicast+0x750/0x750 [ 40.354619] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 40.361083] [] ? security_socket_sendmsg+0x89/0xb0 [ 40.367632] [] ? netlink_unicast+0x750/0x750 [ 40.373712] [] sock_sendmsg+0xca/0x110 [ 40.379238] [] ___sys_sendmsg+0x6d1/0x7e0 [ 40.385011] [] ? copy_msghdr_from_user+0x550/0x550 [ 40.391562] [] ? __lru_cache_add+0x187/0x250 [ 40.397595] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 40.405229] [] ? _raw_spin_unlock+0x2c/0x50 [ 40.411173] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 40.418243] [] ? handle_mm_fault+0x6ee/0x2530 [ 40.424359] [] ? __lock_is_held+0xa1/0xf0 [ 40.430125] [] ? __pmd_alloc+0x410/0x410 [ 40.435805] [] ? __fget_light+0x158/0x1e0 [ 40.441570] [] ? __fdget+0x18/0x20 [ 40.446731] [] __sys_sendmsg+0xd6/0x190 [ 40.452343] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 40.458113] [] ? __do_page_fault+0x5ec/0xd40 [ 40.464150] [] ? __do_page_fault+0x3bd/0xd40 [ 40.470180] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 40.476992] [] SyS_sendmsg+0x2d/0x50 [ 40.482325] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 40.494408] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller742138/3355 [ 40.503125] caller is __this_cpu_preempt_check+0x1c/0x20 [ 40.508551] CPU: 1 PID: 3355 Comm: syzkaller742138 Not tainted 4.9.78-g68d447c #23 [ 40.516226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.525554] ffff8801c82e7490 ffffffff81d943a9 0000000000000001 ffffffff83c18800 [ 40.533538] ffffffff83f45480 ffff8801cb716000 0000000000000003 ffff8801c82e74d0 [ 40.541509] ffffffff81dfb974 ffff8801c82e74e8 ffffffff83f45480 dffffc0000000000 [ 40.549479] Call Trace: [ 40.552041] [] dump_stack+0xc1/0x128 [ 40.557379] [] check_preemption_disabled+0x1d4/0x200 [ 40.564104] [] __this_cpu_preempt_check+0x1c/0x20 [ 40.570616] [] ipcomp_init_state+0x188/0x930 [ 40.576649] [] ? __lock_is_held+0xa1/0xf0 [ 40.582421] [] ipcomp4_init_state+0xb0/0x7d0 [ 40.588451] [] __xfrm_init_state+0x3e7/0xb30 [ 40.594479] [] xfrm_add_sa+0x1916/0x2e40 [ 40.600159] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 40.606980] [] ? nla_parse+0x213/0x260 [ 40.612493] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 40.619311] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 40.625338] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 40.631377] [