[....] Starting enhanced syslogd: rsyslogd[ 13.001725] audit: type=1400 audit(1518349020.014:4): avc: denied { syslog } for pid=3654 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 '10.128.0.50' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 23.881672] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 23.890410] caller is __this_cpu_preempt_check+0x1c/0x20 [ 23.895899] CPU: 0 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 23.903670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.912995] ffff8801ba967490 ffffffff81d94be9 0000000000000000 ffffffff83c18800 [ 23.920959] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 23.928916] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 23.936881] Call Trace: [ 23.939443] [] dump_stack+0xc1/0x128 [ 23.944779] [] check_preemption_disabled+0x1d4/0x200 [ 23.951498] [] __this_cpu_preempt_check+0x1c/0x20 [ 23.957962] [] ipcomp_init_state+0x188/0x930 [ 23.963992] [] ? __lock_is_held+0xa1/0xf0 [ 23.969762] [] ipcomp4_init_state+0xb0/0x7d0 [ 23.975789] [] __xfrm_init_state+0x3e7/0xb30 [ 23.981814] [] xfrm_add_sa+0x1916/0x2e40 [ 23.987490] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 23.994297] [] ? nla_parse+0x213/0x260 [ 23.999801] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.006609] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.012634] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.018662] [] netlink_rcv_skb+0x13e/0x370 [ 24.024526] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.030559] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.036325] [] netlink_unicast+0x511/0x750 [ 24.042179] [] ? netlink_unicast+0x43c/0x750 [ 24.048206] [] ? netlink_attachskb+0x680/0x680 [ 24.054404] [] netlink_sendmsg+0x8e8/0xc50 [ 24.060254] [] ? netlink_unicast+0x750/0x750 [ 24.066282] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 24.072743] [] ? security_socket_sendmsg+0x89/0xb0 [ 24.079288] [] ? netlink_unicast+0x750/0x750 [ 24.085316] [] sock_sendmsg+0xca/0x110 [ 24.090818] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.096584] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.103145] [] ? __lru_cache_add+0x187/0x250 [ 24.109170] [] ? lru_cache_add+0xd9/0x1e0 [ 24.114937] [] ? handle_mm_fault+0xb12/0x2530 [ 24.121048] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.126985] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.133100] [] ? __lock_is_held+0xa1/0xf0 [ 24.138863] [] ? __pmd_alloc+0x410/0x410 [ 24.144541] [] ? __fget_light+0x158/0x1e0 [ 24.150305] [] ? __fdget+0x18/0x20 [ 24.155465] [] __sys_sendmsg+0xd6/0x190 [ 24.161056] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.166824] [] ? __do_page_fault+0x5ec/0xd40 [ 24.172851] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 24.178878] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.185682] [] SyS_sendmsg+0x2d/0x50 [ 24.191013] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 24.201477] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 24.210411] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.215855] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 24.223623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.232948] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 24.240911] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 24.248872] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 24.256835] Call Trace: [ 24.259393] [] dump_stack+0xc1/0x128 [ 24.264729] [] check_preemption_disabled+0x1d4/0x200 [ 24.271460] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.277923] [] ipcomp_init_state+0x188/0x930 [ 24.283951] [] ? __lock_is_held+0xa1/0xf0 [ 24.289715] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.295741] [] __xfrm_init_state+0x3e7/0xb30 [ 24.301768] [] xfrm_add_sa+0x1916/0x2e40 [ 24.307444] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.314252] [] ? nla_parse+0x213/0x260 [ 24.319756] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.326564] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.332592] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.338623] [] netlink_rcv_skb+0x13e/0x370 [ 24.344476] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.350500] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.356266] [] netlink_unicast+0x511/0x750 [ 24.362119] [] ? netlink_unicast+0x43c/0x750 [ 24.368144] [] ? netlink_attachskb+0x680/0x680 [ 24.374343] [] netlink_sendmsg+0x8e8/0xc50 [ 24.380195] [] ? netlink_unicast+0x750/0x750 [ 24.386225] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 24.392690] [] ? security_socket_sendmsg+0x89/0xb0 [ 24.399236] [] ? netlink_unicast+0x750/0x750 [ 24.405261] [] sock_sendmsg+0xca/0x110 [ 24.410763] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.416526] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.423082] [] ? __lru_cache_add+0x187/0x250 [ 24.429107] [] ? lru_cache_add+0xd9/0x1e0 [ 24.434873] [] ? handle_mm_fault+0xb12/0x2530 [ 24.440986] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.446922] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.453037] [] ? __lock_is_held+0xa1/0xf0 [ 24.458800] [] ? __pmd_alloc+0x410/0x410 [ 24.464478] [] ? __fget_light+0x158/0x1e0 [ 24.470239] [] ? __fdget+0x18/0x20 [ 24.475397] [] __sys_sendmsg+0xd6/0x190 executing program [ 24.480985] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.486750] [] ? __do_page_fault+0x5ec/0xd40 [ 24.492774] [] ? __do_page_fault+0x3bd/0xd40 [ 24.498801] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.505606] [] SyS_sendmsg+0x2d/0x50 [ 24.510936] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 24.520705] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 24.529398] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.534856] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 24.542629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.551954] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 24.559923] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 24.567885] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 24.575850] Call Trace: [ 24.578412] [] dump_stack+0xc1/0x128 [ 24.583746] [] check_preemption_disabled+0x1d4/0x200 [ 24.590469] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.596930] [] ipcomp_init_state+0x188/0x930 [ 24.602957] [] ? __lock_is_held+0xa1/0xf0 [ 24.608724] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.614750] [] __xfrm_init_state+0x3e7/0xb30 [ 24.620777] [] xfrm_add_sa+0x1916/0x2e40 [ 24.626454] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.633263] [] ? nla_parse+0x213/0x260 [ 24.638767] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.645573] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.651598] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.657625] [] netlink_rcv_skb+0x13e/0x370 [ 24.663474] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.669499] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.675263] [] netlink_unicast+0x511/0x750 [ 24.681115] [] ? netlink_unicast+0x43c/0x750 [ 24.687142] [] ? netlink_attachskb+0x680/0x680 [ 24.693341] [] netlink_sendmsg+0x8e8/0xc50 [ 24.699192] [] ? netlink_unicast+0x750/0x750 [ 24.705221] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 24.711690] [] ? security_socket_sendmsg+0x89/0xb0 [ 24.718242] [] ? netlink_unicast+0x750/0x750 [ 24.724272] [] sock_sendmsg+0xca/0x110 [ 24.729778] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.735545] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.742099] [] ? __lru_cache_add+0x187/0x250 [ 24.748124] [] ? lru_cache_add+0xd9/0x1e0 [ 24.753886] [] ? handle_mm_fault+0xb12/0x2530 [ 24.760001] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.765937] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.772052] [] ? __lock_is_held+0xa1/0xf0 [ 24.777814] [] ? __pmd_alloc+0x410/0x410 [ 24.783493] [] ? __fget_light+0x158/0x1e0 [ 24.789258] [] ? __fdget+0x18/0x20 [ 24.794416] [] __sys_sendmsg+0xd6/0x190 [ 24.800015] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.805783] [] ? __do_page_fault+0x5ec/0xd40 [ 24.811810] [] ? __do_page_fault+0x3bd/0xd40 [ 24.817838] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.824646] [] SyS_sendmsg+0x2d/0x50 executing program [ 24.829979] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 24.839520] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 24.848241] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.853699] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 24.861469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.870792] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 24.878751] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 24.886712] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 24.894674] Call Trace: [ 24.897236] [] dump_stack+0xc1/0x128 [ 24.902572] [] check_preemption_disabled+0x1d4/0x200 [ 24.909292] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.915752] [] ipcomp_init_state+0x188/0x930 [ 24.921778] [] ? __lock_is_held+0xa1/0xf0 [ 24.927544] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.933566] [] __xfrm_init_state+0x3e7/0xb30 [ 24.939591] [] xfrm_add_sa+0x1916/0x2e40 [ 24.945270] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.952079] [] ? nla_parse+0x213/0x260 [ 24.957585] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 24.964392] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 24.970415] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.976444] [] netlink_rcv_skb+0x13e/0x370 [ 24.982310] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 24.988337] [] xfrm_netlink_rcv+0x6f/0x90 [ 24.994102] [] netlink_unicast+0x511/0x750 [ 24.999953] [] ? netlink_unicast+0x43c/0x750 [ 25.005979] [] ? netlink_attachskb+0x680/0x680 [ 25.012179] [] netlink_sendmsg+0x8e8/0xc50 [ 25.018031] [] ? netlink_unicast+0x750/0x750 [ 25.024059] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.030521] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.037070] [] ? netlink_unicast+0x750/0x750 [ 25.043099] [] sock_sendmsg+0xca/0x110 [ 25.048603] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.054374] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.060924] [] ? __lru_cache_add+0x187/0x250 [ 25.066950] [] ? lru_cache_add+0xd9/0x1e0 [ 25.072715] [] ? handle_mm_fault+0xb12/0x2530 [ 25.078829] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.084769] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.090879] [] ? __lock_is_held+0xa1/0xf0 [ 25.096644] [] ? __pmd_alloc+0x410/0x410 [ 25.102326] [] ? __fget_light+0x158/0x1e0 [ 25.108089] [] ? __fdget+0x18/0x20 [ 25.113247] [] __sys_sendmsg+0xd6/0x190 [ 25.118836] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.124605] [] ? __do_page_fault+0x5ec/0xd40 [ 25.130635] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 25.136664] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.143470] [] SyS_sendmsg+0x2d/0x50 [ 25.148803] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 25.159659] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 25.168640] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.174125] CPU: 0 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 25.181905] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.191275] ffff8801ba967490 ffffffff81d94be9 0000000000000000 ffffffff83c18800 [ 25.199314] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 25.207283] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 25.215245] Call Trace: [ 25.217808] [] dump_stack+0xc1/0x128 [ 25.223143] [] check_preemption_disabled+0x1d4/0x200 [ 25.229865] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.236324] [] ipcomp_init_state+0x188/0x930 [ 25.242350] [] ? __lock_is_held+0xa1/0xf0 [ 25.248120] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.254145] [] __xfrm_init_state+0x3e7/0xb30 [ 25.260169] [] xfrm_add_sa+0x1916/0x2e40 [ 25.265852] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.272758] [] ? nla_parse+0x213/0x260 [ 25.278264] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.285071] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.291189] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.297758] [] netlink_rcv_skb+0x13e/0x370 [ 25.303613] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.309640] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.315404] [] netlink_unicast+0x511/0x750 [ 25.321704] [] ? netlink_unicast+0x43c/0x750 [ 25.327737] [] ? netlink_attachskb+0x680/0x680 [ 25.333937] [] netlink_sendmsg+0x8e8/0xc50 [ 25.339789] [] ? netlink_unicast+0x750/0x750 [ 25.345815] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.352275] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.358819] [] ? netlink_unicast+0x750/0x750 [ 25.364846] [] sock_sendmsg+0xca/0x110 [ 25.370351] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.376119] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.382669] [] ? __lru_cache_add+0x187/0x250 [ 25.388694] [] ? lru_cache_add+0xd9/0x1e0 [ 25.394460] [] ? handle_mm_fault+0xb12/0x2530 [ 25.400573] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.406510] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.412626] [] ? __lock_is_held+0xa1/0xf0 [ 25.418391] [] ? __pmd_alloc+0x410/0x410 [ 25.424069] [] ? __fget_light+0x158/0x1e0 [ 25.429834] [] ? __fdget+0x18/0x20 executing program [ 25.434987] [] __sys_sendmsg+0xd6/0x190 [ 25.440577] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.446345] [] ? __do_page_fault+0x5ec/0xd40 [ 25.452369] [] ? __do_page_fault+0x3bd/0xd40 [ 25.458395] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.465203] [] SyS_sendmsg+0x2d/0x50 [ 25.470533] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 25.485650] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 25.494361] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.499786] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 25.507546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.516869] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 25.524850] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 25.532814] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 25.540793] Call Trace: [ 25.543356] [] dump_stack+0xc1/0x128 [ 25.548693] [] check_preemption_disabled+0x1d4/0x200 [ 25.555410] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.561870] [] ipcomp_init_state+0x188/0x930 [ 25.567896] [] ? __lock_is_held+0xa1/0xf0 [ 25.573661] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.579683] [] __xfrm_init_state+0x3e7/0xb30 [ 25.585709] [] xfrm_add_sa+0x1916/0x2e40 [ 25.591390] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.598212] [] ? nla_parse+0x213/0x260 [ 25.603716] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.610522] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.616546] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.622579] [] netlink_rcv_skb+0x13e/0x370 [ 25.628431] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.634456] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.640221] [] netlink_unicast+0x511/0x750 [ 25.646074] [] ? netlink_unicast+0x43c/0x750 [ 25.652100] [] ? netlink_attachskb+0x680/0x680 [ 25.658298] [] netlink_sendmsg+0x8e8/0xc50 [ 25.664150] [] ? netlink_unicast+0x750/0x750 [ 25.670176] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.676638] [] ? security_socket_sendmsg+0x89/0xb0 [ 25.683184] [] ? netlink_unicast+0x750/0x750 [ 25.689213] [] sock_sendmsg+0xca/0x110 [ 25.694715] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.700480] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.707030] [] ? __lru_cache_add+0x187/0x250 [ 25.713056] [] ? lru_cache_add+0xd9/0x1e0 [ 25.718821] [] ? handle_mm_fault+0xb12/0x2530 [ 25.724933] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.730871] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.736986] [] ? __lock_is_held+0xa1/0xf0 [ 25.742749] [] ? __pmd_alloc+0x410/0x410 [ 25.748429] [] ? __fget_light+0x158/0x1e0 [ 25.754202] [] ? __fdget+0x18/0x20 [ 25.759357] [] __sys_sendmsg+0xd6/0x190 [ 25.764947] [] ? SyS_shutdown+0x1b0/0x1b0 [ 25.770713] [] ? __do_page_fault+0x5ec/0xd40 [ 25.776740] [] ? __do_page_fault+0x3bd/0xd40 [ 25.782802] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 25.789615] [] SyS_sendmsg+0x2d/0x50 [ 25.794947] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 25.804691] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 25.813386] caller is __this_cpu_preempt_check+0x1c/0x20 [ 25.818806] CPU: 0 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 25.826565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.835885] ffff8801ba967490 ffffffff81d94be9 0000000000000000 ffffffff83c18800 [ 25.843847] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 25.851816] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 25.859785] Call Trace: [ 25.862345] [] dump_stack+0xc1/0x128 [ 25.867677] [] check_preemption_disabled+0x1d4/0x200 [ 25.874396] [] __this_cpu_preempt_check+0x1c/0x20 [ 25.880856] [] ipcomp_init_state+0x188/0x930 [ 25.886882] [] ? __lock_is_held+0xa1/0xf0 [ 25.892647] [] ipcomp4_init_state+0xb0/0x7d0 [ 25.898673] [] __xfrm_init_state+0x3e7/0xb30 [ 25.904700] [] xfrm_add_sa+0x1916/0x2e40 [ 25.910381] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.917189] [] ? nla_parse+0x213/0x260 [ 25.922692] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 25.929496] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 25.935521] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.941549] [] netlink_rcv_skb+0x13e/0x370 [ 25.947401] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 25.953425] [] xfrm_netlink_rcv+0x6f/0x90 [ 25.959190] [] netlink_unicast+0x511/0x750 [ 25.965043] [] ? netlink_unicast+0x43c/0x750 [ 25.971071] [] ? netlink_attachskb+0x680/0x680 [ 25.977268] [] netlink_sendmsg+0x8e8/0xc50 [ 25.983117] [] ? netlink_unicast+0x750/0x750 [ 25.989143] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 25.995604] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.002150] [] ? netlink_unicast+0x750/0x750 [ 26.008185] [] sock_sendmsg+0xca/0x110 [ 26.013691] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.019462] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.026013] [] ? __lru_cache_add+0x187/0x250 [ 26.032040] [] ? lru_cache_add+0xd9/0x1e0 [ 26.037807] [] ? handle_mm_fault+0xb12/0x2530 [ 26.043922] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.049858] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.055974] [] ? __lock_is_held+0xa1/0xf0 [ 26.061737] [] ? __pmd_alloc+0x410/0x410 [ 26.067421] [] ? __fget_light+0x158/0x1e0 [ 26.073188] [] ? __fdget+0x18/0x20 [ 26.078345] [] __sys_sendmsg+0xd6/0x190 [ 26.083937] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 26.089707] [] ? __do_page_fault+0x5ec/0xd40 [ 26.095732] [] ? __do_page_fault+0x3bd/0xd40 [ 26.101772] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 26.108580] [] SyS_sendmsg+0x2d/0x50 [ 26.113915] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 26.124120] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 26.132807] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.138229] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 26.145989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.155313] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 26.163278] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 26.171236] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 26.179196] Call Trace: [ 26.181762] [] dump_stack+0xc1/0x128 [ 26.187096] [] check_preemption_disabled+0x1d4/0x200 [ 26.193816] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.200278] [] ipcomp_init_state+0x188/0x930 [ 26.206307] [] ? __lock_is_held+0xa1/0xf0 [ 26.212073] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.218096] [] __xfrm_init_state+0x3e7/0xb30 [ 26.224122] [] xfrm_add_sa+0x1916/0x2e40 [ 26.229800] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.236607] [] ? nla_parse+0x213/0x260 [ 26.242123] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.248951] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.254978] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.261009] [] netlink_rcv_skb+0x13e/0x370 [ 26.266871] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.272898] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.278667] [] netlink_unicast+0x511/0x750 [ 26.284519] [] ? netlink_unicast+0x43c/0x750 [ 26.290546] [] ? netlink_attachskb+0x680/0x680 [ 26.296743] [] netlink_sendmsg+0x8e8/0xc50 [ 26.302596] [] ? netlink_unicast+0x750/0x750 [ 26.308625] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.315088] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.321633] [] ? netlink_unicast+0x750/0x750 [ 26.327659] [] sock_sendmsg+0xca/0x110 [ 26.333166] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.338931] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.345479] [] ? __lru_cache_add+0x187/0x250 [ 26.351504] [] ? lru_cache_add+0xd9/0x1e0 [ 26.357274] [] ? handle_mm_fault+0xb12/0x2530 [ 26.363389] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.369328] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.375446] [] ? __lock_is_held+0xa1/0xf0 [ 26.381210] [] ? __pmd_alloc+0x410/0x410 [ 26.386891] [] ? __fget_light+0x158/0x1e0 executing program [ 26.392655] [] ? __fdget+0x18/0x20 [ 26.397815] [] __sys_sendmsg+0xd6/0x190 [ 26.403407] [] ? SyS_shutdown+0x1b0/0x1b0 [ 26.409177] [] ? __do_page_fault+0x5ec/0xd40 [ 26.415202] [] ? __do_page_fault+0x3bd/0xd40 [ 26.421230] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 26.428039] [] SyS_sendmsg+0x2d/0x50 [ 26.433374] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 26.442824] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 26.451493] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.456956] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 26.464724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.474048] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 26.482018] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 26.490014] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 26.497990] Call Trace: [ 26.500550] [] dump_stack+0xc1/0x128 [ 26.505889] [] check_preemption_disabled+0x1d4/0x200 [ 26.512609] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.519073] [] ipcomp_init_state+0x188/0x930 [ 26.525104] [] ? __lock_is_held+0xa1/0xf0 [ 26.530871] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.536908] [] __xfrm_init_state+0x3e7/0xb30 [ 26.542950] [] xfrm_add_sa+0x1916/0x2e40 [ 26.548627] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.555437] [] ? nla_parse+0x213/0x260 [ 26.560942] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.567752] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.573778] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.579807] [] netlink_rcv_skb+0x13e/0x370 [ 26.585657] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.591688] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.597452] [] netlink_unicast+0x511/0x750 [ 26.603302] [] ? netlink_unicast+0x43c/0x750 [ 26.609324] [] ? netlink_attachskb+0x680/0x680 [ 26.615533] [] netlink_sendmsg+0x8e8/0xc50 [ 26.621384] [] ? netlink_unicast+0x750/0x750 [ 26.627415] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.633876] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.640427] [] ? netlink_unicast+0x750/0x750 [ 26.646455] [] sock_sendmsg+0xca/0x110 [ 26.651957] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.657719] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.664277] [] ? __lru_cache_add+0x187/0x250 [ 26.670300] [] ? lru_cache_add+0xd9/0x1e0 [ 26.676066] [] ? handle_mm_fault+0xb12/0x2530 [ 26.682180] [] ? _raw_spin_unlock+0x2c/0x50 [ 26.688116] [] ? handle_mm_fault+0x6ee/0x2530 [ 26.694233] [] ? __lock_is_held+0xa1/0xf0 [ 26.699997] [] ? __pmd_alloc+0x410/0x410 [ 26.705678] [] ? __fget_light+0x158/0x1e0 [ 26.711442] [] ? __fdget+0x18/0x20 [ 26.716605] [] __sys_sendmsg+0xd6/0x190 [ 26.722195] [] ? SyS_shutdown+0x1b0/0x1b0 [ 26.727965] [] ? __do_page_fault+0x5ec/0xd40 [ 26.733991] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 26.740018] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 26.746825] [] SyS_sendmsg+0x2d/0x50 [ 26.752156] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 26.761521] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller363401/3810 [ 26.770220] caller is __this_cpu_preempt_check+0x1c/0x20 [ 26.775667] CPU: 1 PID: 3810 Comm: syzkaller363401 Not tainted 4.9.80-g8a174b47 #31 [ 26.783434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.792756] ffff8801ba967490 ffffffff81d94be9 0000000000000001 ffffffff83c18800 [ 26.800723] ffffffff83f454c0 ffff8801b4af1800 0000000000000003 ffff8801ba9674d0 [ 26.808687] ffffffff81dfc1c4 ffff8801ba9674e8 ffffffff83f454c0 dffffc0000000000 [ 26.816654] Call Trace: [ 26.819217] [] dump_stack+0xc1/0x128 [ 26.824554] [] check_preemption_disabled+0x1d4/0x200 [ 26.831273] [] __this_cpu_preempt_check+0x1c/0x20 [ 26.837736] [] ipcomp_init_state+0x188/0x930 [ 26.843762] [] ? __lock_is_held+0xa1/0xf0 [ 26.849528] [] ipcomp4_init_state+0xb0/0x7d0 [ 26.855551] [] __xfrm_init_state+0x3e7/0xb30 [ 26.861578] [] xfrm_add_sa+0x1916/0x2e40 [ 26.867256] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.874065] [] ? nla_parse+0x213/0x260 [ 26.879570] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 26.886376] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 26.892410] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.898446] [] netlink_rcv_skb+0x13e/0x370 [ 26.904297] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 26.910340] [] xfrm_netlink_rcv+0x6f/0x90 [ 26.916104] [] netlink_unicast+0x511/0x750 [ 26.921954] [] ? netlink_unicast+0x43c/0x750 [ 26.927983] [] ? netlink_attachskb+0x680/0x680 [ 26.934180] [] netlink_sendmsg+0x8e8/0xc50 [ 26.940030] [] ? netlink_unicast+0x750/0x750 [ 26.946056] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 26.952516] [] ? security_socket_sendmsg+0x89/0xb0 [ 26.959063] [] ? netlink_unicast+0x750/0x750 [ 26.965090] [] sock_sendmsg+0xca/0x110 [ 26.970593] [] ___sys_sendmsg+0x6d1/0x7e0 [ 26.976358] [] ? copy_msghdr_from_user+0x550/0x550 [ 26.982909] [] ? __lru_cache_add+0x187/0x250 [ 26.988932] [] ? lru_cache_add+0xd9/0x1e0 [ 26.994698] [] ? handle_mm_fault+0xb12/0x2530 [ 27.000810] [] ? _raw_spin_unlock+0x2c/0x50 [ 27.006747] [] ? handle_mm_fault+0x6ee/0x2530 [ 27.012863] [] ? __lock_is_held+0xa1/0xf0 [ 27.018628] [] ? __pmd_alloc+0x410/0x410 [ 27.024306] [] ? __fget_light+0x158/0x1e0 [ 27.030068] [] ? __fdget+0x18/0x20 [ 27.035324] [] __sys_sendmsg+0xd6/0x190 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 [ 27.040915] [] ? SyS_shutdown+0x1b0/0x1b0 [ 27.046683] [] ? __do_page_fault+0x5ec/0xd40 [ 27.052709] [] ? __do_page_fault+0x3bd/0xd40 [ 27.058736] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.065541] [] SyS_sendmsg+0x2d/0x50 [ 27.070882] [] entry_SYSCALL_64_fastpath+0x29/0xe8 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 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 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