[....] Starting enhanced syslogd: rsyslogd[ 13.807017] audit: type=1400 audit(1517863628.335:4): avc: denied { syslog } for pid=3553 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 file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 45.888073] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 45.896804] caller is __this_cpu_preempt_check+0x1c/0x20 [ 45.902229] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 45.909904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.919238] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 45.927366] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 45.935342] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 45.943398] Call Trace: [ 45.945976] [] dump_stack+0xc1/0x128 [ 45.951487] [] check_preemption_disabled+0x1d4/0x200 [ 45.958223] [] __this_cpu_preempt_check+0x1c/0x20 [ 45.964781] [] ipcomp_init_state+0x188/0x930 [ 45.971168] [] ? __lock_is_held+0xa1/0xf0 [ 45.976943] [] ipcomp4_init_state+0xb0/0x7d0 [ 45.983002] [] __xfrm_init_state+0x3e7/0xb30 [ 45.989029] [] xfrm_init_state+0x1a/0x20 [ 45.994712] [] pfkey_add+0x1fb9/0x3470 [ 46.000232] [] ? pfkey_delete+0x360/0x360 [ 46.006004] [] ? pfkey_seq_stop+0x80/0x80 [ 46.011778] [] ? __skb_clone+0x24a/0x7d0 [ 46.017470] [] ? pfkey_delete+0x360/0x360 [ 46.023243] [] pfkey_process+0x68b/0x750 [ 46.028929] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 46.035743] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.042560] [] pfkey_sendmsg+0x3a9/0x760 [ 46.048252] [] ? pfkey_spdget+0x820/0x820 [ 46.054198] [] sock_sendmsg+0xca/0x110 [ 46.059722] [] ___sys_sendmsg+0x6d1/0x7e0 [ 46.065498] [] ? copy_msghdr_from_user+0x550/0x550 [ 46.072236] [] ? __lru_cache_add+0x187/0x250 [ 46.078272] [] ? check_preemption_disabled+0x3b/0x200 [ 46.085084] [] ? __fget+0x201/0x3a0 [ 46.090424] [] ? __fget+0x228/0x3a0 [ 46.095785] [] ? __fget+0x47/0x3a0 [ 46.100972] [] ? __fget_light+0x188/0x1e0 [ 46.106747] [] ? __fdget+0x18/0x20 [ 46.111911] [] __sys_sendmsg+0xd6/0x190 [ 46.117513] [] ? SyS_shutdown+0x1b0/0x1b0 [ 46.123306] [] ? __do_page_fault+0x5ec/0xd40 [ 46.129349] [] ? __do_page_fault+0x3bd/0xd40 [ 46.135401] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.142225] [] SyS_sendmsg+0x2d/0x50 [ 46.147562] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 46.156400] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 46.165090] caller is __this_cpu_preempt_check+0x1c/0x20 [ 46.170513] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 46.178188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.187518] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 46.195499] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 46.203472] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 46.211456] Call Trace: [ 46.214018] [] dump_stack+0xc1/0x128 [ 46.219359] [] check_preemption_disabled+0x1d4/0x200 [ 46.226088] [] __this_cpu_preempt_check+0x1c/0x20 [ 46.232554] [] ipcomp_init_state+0x188/0x930 [ 46.238583] [] ? __lock_is_held+0xa1/0xf0 [ 46.244353] [] ipcomp4_init_state+0xb0/0x7d0 [ 46.250380] [] __xfrm_init_state+0x3e7/0xb30 [ 46.256408] [] xfrm_init_state+0x1a/0x20 [ 46.262092] [] pfkey_add+0x1fb9/0x3470 [ 46.267601] [] ? pfkey_delete+0x360/0x360 [ 46.273368] [] ? pfkey_seq_stop+0x80/0x80 [ 46.279140] [] ? __skb_clone+0x24a/0x7d0 [ 46.284830] [] ? pfkey_delete+0x360/0x360 [ 46.290603] [] pfkey_process+0x68b/0x750 [ 46.296289] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 46.303106] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.310007] [] pfkey_sendmsg+0x3a9/0x760 [ 46.316396] [] ? pfkey_spdget+0x820/0x820 [ 46.322166] [] sock_sendmsg+0xca/0x110 [ 46.327674] [] ___sys_sendmsg+0x6d1/0x7e0 [ 46.333446] [] ? copy_msghdr_from_user+0x550/0x550 [ 46.340001] [] ? __lru_cache_add+0x187/0x250 [ 46.346048] [] ? check_preemption_disabled+0x3b/0x200 [ 46.352863] [] ? __fget+0x201/0x3a0 [ 46.358115] [] ? __fget+0x228/0x3a0 [ 46.363365] [] ? __fget+0x47/0x3a0 [ 46.368528] [] ? __fget_light+0x188/0x1e0 [ 46.374293] [] ? __fdget+0x18/0x20 [ 46.379462] [] __sys_sendmsg+0xd6/0x190 [ 46.385059] [] ? SyS_shutdown+0x1b0/0x1b0 [ 46.390827] [] ? __do_page_fault+0x5ec/0xd40 [ 46.396865] [] ? __do_page_fault+0x3bd/0xd40 [ 46.402895] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.409718] [] SyS_sendmsg+0x2d/0x50 [ 46.415055] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 46.426416] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 46.435333] caller is __this_cpu_preempt_check+0x1c/0x20 [ 46.440763] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 46.448441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.457782] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 46.465798] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 46.473775] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 46.481777] Call Trace: [ 46.484350] [] dump_stack+0xc1/0x128 [ 46.489704] [] check_preemption_disabled+0x1d4/0x200 [ 46.496430] [] __this_cpu_preempt_check+0x1c/0x20 [ 46.502895] [] ipcomp_init_state+0x188/0x930 [ 46.508950] [] ? __lock_is_held+0xa1/0xf0 [ 46.514722] [] ipcomp4_init_state+0xb0/0x7d0 [ 46.520753] [] __xfrm_init_state+0x3e7/0xb30 [ 46.526786] [] xfrm_init_state+0x1a/0x20 [ 46.532472] [] pfkey_add+0x1fb9/0x3470 [ 46.537999] [] ? pfkey_delete+0x360/0x360 [ 46.543778] [] ? pfkey_seq_stop+0x80/0x80 [ 46.549567] [] ? __skb_clone+0x24a/0x7d0 [ 46.555249] [] ? pfkey_delete+0x360/0x360 [ 46.561021] [] pfkey_process+0x68b/0x750 [ 46.566707] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 46.573523] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.580336] [] pfkey_sendmsg+0x3a9/0x760 [ 46.586023] [] ? pfkey_spdget+0x820/0x820 [ 46.592151] [] sock_sendmsg+0xca/0x110 [ 46.597660] [] ___sys_sendmsg+0x6d1/0x7e0 [ 46.603432] [] ? copy_msghdr_from_user+0x550/0x550 [ 46.609986] [] ? __lru_cache_add+0x187/0x250 [ 46.616019] [] ? check_preemption_disabled+0x3b/0x200 [ 46.622836] [] ? __fget+0x201/0x3a0 [ 46.628086] [] ? __fget+0x228/0x3a0 [ 46.633334] [] ? __fget+0x47/0x3a0 [ 46.638502] [] ? __fget_light+0x188/0x1e0 [ 46.644270] [] ? __fdget+0x18/0x20 [ 46.649605] [] __sys_sendmsg+0xd6/0x190 [ 46.655202] [] ? SyS_shutdown+0x1b0/0x1b0 [ 46.661590] [] ? __do_page_fault+0x5ec/0xd40 [ 46.667716] [] ? __do_page_fault+0x3bd/0xd40 [ 46.673747] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.680559] [] SyS_sendmsg+0x2d/0x50 executing program [ 46.685982] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 46.697235] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 46.705925] caller is __this_cpu_preempt_check+0x1c/0x20 [ 46.711355] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 46.719029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.728364] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 46.736334] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 46.744322] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 46.754500] Call Trace: [ 46.757078] [] dump_stack+0xc1/0x128 [ 46.762435] [] check_preemption_disabled+0x1d4/0x200 [ 46.769171] [] __this_cpu_preempt_check+0x1c/0x20 [ 46.775639] [] ipcomp_init_state+0x188/0x930 [ 46.781682] [] ? __lock_is_held+0xa1/0xf0 [ 46.787453] [] ipcomp4_init_state+0xb0/0x7d0 [ 46.793499] [] __xfrm_init_state+0x3e7/0xb30 [ 46.799877] [] xfrm_init_state+0x1a/0x20 [ 46.805560] [] pfkey_add+0x1fb9/0x3470 [ 46.811073] [] ? pfkey_delete+0x360/0x360 [ 46.816842] [] ? pfkey_seq_stop+0x80/0x80 [ 46.822611] [] ? __skb_clone+0x24a/0x7d0 [ 46.828301] [] ? pfkey_delete+0x360/0x360 [ 46.834160] [] pfkey_process+0x68b/0x750 [ 46.839847] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 46.846677] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.853510] [] pfkey_sendmsg+0x3a9/0x760 [ 46.859217] [] ? pfkey_spdget+0x820/0x820 [ 46.865013] [] sock_sendmsg+0xca/0x110 [ 46.870549] [] ___sys_sendmsg+0x6d1/0x7e0 [ 46.876347] [] ? copy_msghdr_from_user+0x550/0x550 [ 46.882927] [] ? __lru_cache_add+0x187/0x250 [ 46.888976] [] ? check_preemption_disabled+0x3b/0x200 [ 46.895806] [] ? __fget+0x201/0x3a0 [ 46.901081] [] ? __fget+0x228/0x3a0 [ 46.906354] [] ? __fget+0x47/0x3a0 [ 46.911539] [] ? __fget_light+0x188/0x1e0 [ 46.917323] [] ? __fdget+0x18/0x20 [ 46.922491] [] __sys_sendmsg+0xd6/0x190 [ 46.928085] [] ? SyS_shutdown+0x1b0/0x1b0 [ 46.933858] [] ? __do_page_fault+0x5ec/0xd40 [ 46.939896] [] ? __do_page_fault+0x3bd/0xd40 [ 46.945936] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 46.952760] [] SyS_sendmsg+0x2d/0x50 [ 46.958113] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 46.970681] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 46.979397] caller is __this_cpu_preempt_check+0x1c/0x20 [ 46.984856] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 46.992537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.001867] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 47.009861] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 47.017858] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 47.025831] Call Trace: [ 47.028395] [] dump_stack+0xc1/0x128 [ 47.033732] [] check_preemption_disabled+0x1d4/0x200 [ 47.040479] [] __this_cpu_preempt_check+0x1c/0x20 [ 47.046944] [] ipcomp_init_state+0x188/0x930 [ 47.052999] [] ? __lock_is_held+0xa1/0xf0 [ 47.058780] [] ipcomp4_init_state+0xb0/0x7d0 [ 47.064810] [] __xfrm_init_state+0x3e7/0xb30 [ 47.070862] [] xfrm_init_state+0x1a/0x20 [ 47.076572] [] pfkey_add+0x1fb9/0x3470 [ 47.082101] [] ? pfkey_delete+0x360/0x360 [ 47.087899] [] ? pfkey_seq_stop+0x80/0x80 [ 47.093720] [] ? __skb_clone+0x24a/0x7d0 [ 47.099431] [] ? pfkey_delete+0x360/0x360 [ 47.105223] [] pfkey_process+0x68b/0x750 [ 47.111066] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 47.117915] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.124766] [] pfkey_sendmsg+0x3a9/0x760 [ 47.130496] [] ? pfkey_spdget+0x820/0x820 [ 47.136298] [] sock_sendmsg+0xca/0x110 [ 47.141852] [] ___sys_sendmsg+0x6d1/0x7e0 [ 47.147664] [] ? copy_msghdr_from_user+0x550/0x550 [ 47.154252] [] ? __lru_cache_add+0x187/0x250 [ 47.160310] [] ? check_preemption_disabled+0x3b/0x200 [ 47.167148] [] ? __fget+0x201/0x3a0 [ 47.172498] [] ? __fget+0x228/0x3a0 [ 47.177757] [] ? __fget+0x47/0x3a0 [ 47.182927] [] ? __fget_light+0x188/0x1e0 [ 47.188721] [] ? __fdget+0x18/0x20 executing program [ 47.193915] [] __sys_sendmsg+0xd6/0x190 [ 47.199539] [] ? SyS_shutdown+0x1b0/0x1b0 [ 47.205336] [] ? __do_page_fault+0x5ec/0xd40 [ 47.211381] [] ? __do_page_fault+0x3bd/0xd40 [ 47.217422] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.224251] [] SyS_sendmsg+0x2d/0x50 [ 47.229610] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 47.239782] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 47.248508] caller is __this_cpu_preempt_check+0x1c/0x20 [ 47.253958] CPU: 1 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 47.261643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.270982] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000001 ffffffff83c18800 [ 47.278959] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 47.286924] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 47.294891] Call Trace: [ 47.297450] [] dump_stack+0xc1/0x128 [ 47.302795] [] check_preemption_disabled+0x1d4/0x200 [ 47.309517] [] __this_cpu_preempt_check+0x1c/0x20 [ 47.315979] [] ipcomp_init_state+0x188/0x930 [ 47.322028] [] ? __lock_is_held+0xa1/0xf0 [ 47.327802] [] ipcomp4_init_state+0xb0/0x7d0 [ 47.333832] [] __xfrm_init_state+0x3e7/0xb30 [ 47.339864] [] xfrm_init_state+0x1a/0x20 [ 47.345547] [] pfkey_add+0x1fb9/0x3470 [ 47.351071] [] ? pfkey_delete+0x360/0x360 [ 47.356839] [] ? pfkey_seq_stop+0x80/0x80 [ 47.362610] [] ? __skb_clone+0x24a/0x7d0 [ 47.368290] [] ? pfkey_delete+0x360/0x360 [ 47.374054] [] pfkey_process+0x68b/0x750 [ 47.379738] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 47.386898] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.393707] [] pfkey_sendmsg+0x3a9/0x760 [ 47.399386] [] ? pfkey_spdget+0x820/0x820 [ 47.405155] [] sock_sendmsg+0xca/0x110 [ 47.410658] [] ___sys_sendmsg+0x6d1/0x7e0 [ 47.416519] [] ? copy_msghdr_from_user+0x550/0x550 [ 47.423075] [] ? __lru_cache_add+0x187/0x250 [ 47.429119] [] ? check_preemption_disabled+0x3b/0x200 [ 47.435941] [] ? __fget+0x201/0x3a0 [ 47.441192] [] ? __fget+0x228/0x3a0 [ 47.446438] [] ? __fget+0x47/0x3a0 [ 47.451597] [] ? __fget_light+0x188/0x1e0 [ 47.457364] [] ? __fdget+0x18/0x20 [ 47.462525] [] __sys_sendmsg+0xd6/0x190 [ 47.468133] [] ? SyS_shutdown+0x1b0/0x1b0 [ 47.473905] [] ? __do_page_fault+0x5ec/0xd40 [ 47.480112] [] ? __do_page_fault+0x3bd/0xd40 [ 47.486142] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 47.492953] [] SyS_sendmsg+0x2d/0x50 [ 47.498288] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 47.508657] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3728 [ 47.517437] caller is __this_cpu_preempt_check+0x1c/0x20 [ 47.522886] CPU: 0 PID: 3728 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 47.530581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.539940] ffff8801bea776d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 47.548012] ffffffff83f454c0 ffff8801bb923000 0000000000000003 ffff8801bea77718 [ 47.556066] ffffffff81dfc144 ffff8801bea77730 ffffffff83f454c0 dffffc0000000000 [ 47.564096] Call Trace: [ 47.566669] [] dump_stack+0xc1/0x128 [ 47.572034] [] check_preemption_disabled+0x1d4/0x200 [ 47.578801] [] __this_cpu_preempt_check+0x1c/0x20 [ 47.585298] [] ipcomp_init_state+0x188/0x930 [ 47.591358] [] ? __lock_is_held+0xa1/0xf0 [ 47.597683] [] ipcomp4_init_state+0xb0/0x7d0 [ 47.603748] [] __xfrm_init_state+0x3e7/0xb30 [ 47.609901] [] xfrm_init_state+0x1a/0x20 [ 47.615793] [] pfkey_add+0x1fb9/0x3470 [ 47.621332] [] ? pfkey_delete+0x360/0x360 [ 47.627122] [] ? pfkey_seq_stop+0x80/0x80 [ 47.632921] [] ? __skb_clone+0x24a/0x7d0 [ 47.638643] [] ? pfkey_delete+0x360/0x360 [ 47.644456] [] pfkey_process+0x68b/0x750 [ 47.650166] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 47.657008] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.663828] [] pfkey_sendmsg+0x3a9/0x760 [ 47.669530] [] ? pfkey_spdget+0x820/0x820 [ 47.675414] [] sock_sendmsg+0xca/0x110 [ 47.680959] [] ___sys_sendmsg+0x6d1/0x7e0 [ 47.686950] [] ? copy_msghdr_from_user+0x550/0x550 [ 47.693525] [] ? __lru_cache_add+0x187/0x250 [ 47.699579] [] ? check_preemption_disabled+0x3b/0x200 [ 47.706427] [] ? __fget+0x201/0x3a0 [ 47.711706] [] ? __fget+0x228/0x3a0 [ 47.717021] [] ? __fget+0x47/0x3a0 [ 47.722203] [] ? __fget_light+0x188/0x1e0 [ 47.728079] [] ? __fdget+0x18/0x20 [ 47.733249] [] __sys_sendmsg+0xd6/0x190 [ 47.738870] [] ? SyS_shutdown+0x1b0/0x1b0 [ 47.744672] [] ? __do_page_fault+0x5ec/0xd40 [ 47.750741] [] ? __do_page_fault+0x3bd/0xd40 [ 47.756820] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.763717] [] SyS_sendmsg+0x2d/0x50 [ 47.769096] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 47.778097] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 47.786830] caller is __this_cpu_preempt_check+0x1c/0x20 [ 47.792263] CPU: 1 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 47.799943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.809276] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000001 ffffffff83c18800 [ 47.817273] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 47.825257] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 47.833236] Call Trace: [ 47.835815] [] dump_stack+0xc1/0x128 [ 47.841151] [] check_preemption_disabled+0x1d4/0x200 [ 47.847881] [] __this_cpu_preempt_check+0x1c/0x20 [ 47.854358] [] ipcomp_init_state+0x188/0x930 [ 47.860392] [] ? __lock_is_held+0xa1/0xf0 [ 47.866165] [] ipcomp4_init_state+0xb0/0x7d0 [ 47.872208] [] __xfrm_init_state+0x3e7/0xb30 [ 47.878254] [] xfrm_init_state+0x1a/0x20 [ 47.883966] [] pfkey_add+0x1fb9/0x3470 [ 47.889491] [] ? pfkey_delete+0x360/0x360 [ 47.895267] [] ? pfkey_seq_stop+0x80/0x80 [ 47.901044] [] ? __skb_clone+0x24a/0x7d0 [ 47.906744] [] ? pfkey_delete+0x360/0x360 [ 47.912518] [] pfkey_process+0x68b/0x750 [ 47.918212] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 47.926098] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 47.932924] [] pfkey_sendmsg+0x3a9/0x760 [ 47.938630] [] ? pfkey_spdget+0x820/0x820 [ 47.944418] [] sock_sendmsg+0xca/0x110 [ 47.949929] [] ___sys_sendmsg+0x6d1/0x7e0 [ 47.955706] [] ? copy_msghdr_from_user+0x550/0x550 [ 47.962284] [] ? __lru_cache_add+0x187/0x250 [ 47.968353] [] ? check_preemption_disabled+0x3b/0x200 [ 47.975200] [] ? __fget+0x201/0x3a0 [ 47.980472] [] ? __fget+0x228/0x3a0 [ 47.985737] [] ? __fget+0x47/0x3a0 [ 47.990909] [] ? __fget_light+0x188/0x1e0 [ 47.996691] [] ? __fdget+0x18/0x20 [ 48.001865] [] __sys_sendmsg+0xd6/0x190 [ 48.007488] [] ? SyS_shutdown+0x1b0/0x1b0 [ 48.013285] [] ? __do_page_fault+0x5ec/0xd40 [ 48.019318] [] ? __do_page_fault+0x3bd/0xd40 [ 48.025358] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.032180] [] SyS_sendmsg+0x2d/0x50 [ 48.037530] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 48.048237] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 48.056920] caller is __this_cpu_preempt_check+0x1c/0x20 [ 48.062352] CPU: 1 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 48.070032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.079370] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000001 ffffffff83c18800 [ 48.087343] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 48.095340] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 48.103311] Call Trace: [ 48.105885] [] dump_stack+0xc1/0x128 [ 48.111223] [] check_preemption_disabled+0x1d4/0x200 [ 48.117959] [] __this_cpu_preempt_check+0x1c/0x20 [ 48.124444] [] ipcomp_init_state+0x188/0x930 [ 48.130491] [] ? __lock_is_held+0xa1/0xf0 [ 48.136267] [] ipcomp4_init_state+0xb0/0x7d0 [ 48.142295] [] __xfrm_init_state+0x3e7/0xb30 [ 48.148325] [] xfrm_init_state+0x1a/0x20 [ 48.154008] [] pfkey_add+0x1fb9/0x3470 [ 48.159523] [] ? pfkey_delete+0x360/0x360 [ 48.165295] [] ? pfkey_seq_stop+0x80/0x80 [ 48.171064] [] ? __skb_clone+0x24a/0x7d0 [ 48.176756] [] ? pfkey_delete+0x360/0x360 [ 48.182525] [] pfkey_process+0x68b/0x750 [ 48.188208] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 48.195027] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.201860] [] pfkey_sendmsg+0x3a9/0x760 [ 48.207564] [] ? pfkey_spdget+0x820/0x820 [ 48.213335] [] sock_sendmsg+0xca/0x110 [ 48.218845] [] ___sys_sendmsg+0x6d1/0x7e0 [ 48.224706] [] ? copy_msghdr_from_user+0x550/0x550 [ 48.231259] [] ? __lru_cache_add+0x187/0x250 [ 48.237290] [] ? check_preemption_disabled+0x3b/0x200 [ 48.244196] [] ? __fget+0x201/0x3a0 [ 48.249447] [] ? __fget+0x228/0x3a0 [ 48.254704] [] ? __fget+0x47/0x3a0 [ 48.259871] [] ? __fget_light+0x188/0x1e0 [ 48.265642] [] ? __fdget+0x18/0x20 [ 48.270807] [] __sys_sendmsg+0xd6/0x190 [ 48.276402] [] ? SyS_shutdown+0x1b0/0x1b0 [ 48.282171] [] ? __do_page_fault+0x5ec/0xd40 [ 48.288207] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 48.294247] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.301063] [] SyS_sendmsg+0x2d/0x50 [ 48.306403] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 48.317124] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 48.325819] caller is __this_cpu_preempt_check+0x1c/0x20 [ 48.331267] CPU: 1 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 48.338943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.348273] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000001 ffffffff83c18800 [ 48.356259] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 48.364236] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 48.372212] Call Trace: [ 48.374774] [] dump_stack+0xc1/0x128 [ 48.380112] [] check_preemption_disabled+0x1d4/0x200 [ 48.386845] [] __this_cpu_preempt_check+0x1c/0x20 [ 48.393311] [] ipcomp_init_state+0x188/0x930 [ 48.399349] [] ? __lock_is_held+0xa1/0xf0 [ 48.405121] [] ipcomp4_init_state+0xb0/0x7d0 [ 48.411163] [] __xfrm_init_state+0x3e7/0xb30 [ 48.417192] [] xfrm_init_state+0x1a/0x20 [ 48.422886] [] pfkey_add+0x1fb9/0x3470 [ 48.428395] [] ? pfkey_delete+0x360/0x360 [ 48.434169] [] ? pfkey_seq_stop+0x80/0x80 [ 48.439946] [] ? __skb_clone+0x24a/0x7d0 [ 48.445630] [] ? pfkey_delete+0x360/0x360 [ 48.451407] [] pfkey_process+0x68b/0x750 [ 48.457101] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 48.463914] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.470731] [] pfkey_sendmsg+0x3a9/0x760 [ 48.476416] [] ? pfkey_spdget+0x820/0x820 [ 48.482207] [] sock_sendmsg+0xca/0x110 [ 48.487719] [] ___sys_sendmsg+0x6d1/0x7e0 [ 48.493495] [] ? copy_msghdr_from_user+0x550/0x550 [ 48.500053] [] ? __lru_cache_add+0x187/0x250 [ 48.506087] [] ? check_preemption_disabled+0x3b/0x200 [ 48.512903] [] ? __fget+0x201/0x3a0 [ 48.518153] [] ? __fget+0x228/0x3a0 [ 48.523401] [] ? __fget+0x47/0x3a0 [ 48.528576] [] ? __fget_light+0x188/0x1e0 [ 48.534352] [] ? __fdget+0x18/0x20 [ 48.539515] [] __sys_sendmsg+0xd6/0x190 executing program executing program executing program executing program [ 48.545110] [] ? SyS_shutdown+0x1b0/0x1b0 [ 48.550890] [] ? __do_page_fault+0x5ec/0xd40 [ 48.556932] [] ? __do_page_fault+0x3bd/0xd40 [ 48.562972] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 48.569790] [] SyS_sendmsg+0x2d/0x50 [ 48.575134] [] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 50.899057] check_preemption_disabled: 706 callbacks suppressed [ 50.899061] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3727 [ 50.913822] caller is __this_cpu_preempt_check+0x1c/0x20 [ 50.919250] CPU: 0 PID: 3727 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 50.926939] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.936268] ffff8801bb8ff6d8 ffffffff81d94b69 0000000000000000 ffffffff83c18800 [ 50.944248] ffffffff83f454c0 ffff8801bb921800 0000000000000003 ffff8801bb8ff718 [ 50.952232] ffffffff81dfc144 ffff8801bb8ff730 ffffffff83f454c0 dffffc0000000000 [ 50.960208] Call Trace: [ 50.962772] [] dump_stack+0xc1/0x128 [ 50.968118] [] check_preemption_disabled+0x1d4/0x200 [ 50.974846] [] __this_cpu_preempt_check+0x1c/0x20 [ 50.981310] [] ipcomp_init_state+0x188/0x930 [ 50.987341] [] ? __lock_is_held+0xa1/0xf0 [ 50.993302] [] ipcomp4_init_state+0xb0/0x7d0 [ 50.999353] [] __xfrm_init_state+0x3e7/0xb30 [ 51.005383] [] xfrm_init_state+0x1a/0x20 [ 51.011156] [] pfkey_add+0x1fb9/0x3470 [ 51.016669] [] ? pfkey_delete+0x360/0x360 [ 51.022441] [] ? pfkey_seq_stop+0x80/0x80 [ 51.028215] [] ? __skb_clone+0x24a/0x7d0 [ 51.034074] [] ? pfkey_delete+0x360/0x360 [ 51.039849] [] pfkey_process+0x68b/0x750 [ 51.045536] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 51.052353] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 51.059169] [] pfkey_sendmsg+0x3a9/0x760 [ 51.064873] [] ? pfkey_spdget+0x820/0x820 [ 51.070656] [] sock_sendmsg+0xca/0x110 [ 51.076171] [] ___sys_sendmsg+0x6d1/0x7e0 [ 51.088801] [] ? copy_msghdr_from_user+0x550/0x550 [ 51.095355] [] ? __lru_cache_add+0x187/0x250 [ 51.101387] [] ? check_preemption_disabled+0x3b/0x200 [ 51.108199] [] ? __fget+0x201/0x3a0 [ 51.113448] [] ? __fget+0x228/0x3a0 [ 51.118695] [] ? __fget+0x47/0x3a0 [ 51.123867] [] ? __fget_light+0x188/0x1e0 [ 51.129654] [] ? __fdget+0x18/0x20 [ 51.134821] [] __sys_sendmsg+0xd6/0x190 [ 51.140421] [] ? SyS_shutdown+0x1b0/0x1b0 [ 51.146192] [] ? __do_page_fault+0x5ec/0xd40 [ 51.152222] [] ? __do_page_fault+0x3bd/0xd40 [ 51.158280] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 51.165091] [] SyS_sendmsg+0x2d/0x50 [ 51.170430] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 51.179745] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller947456/3728 [ 51.188452] caller is __this_cpu_preempt_check+0x1c/0x20 [ 51.193898] CPU: 1 PID: 3728 Comm: syzkaller947456 Not tainted 4.9.80-gb30d2b5 #28 [ 51.201583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.210909] ffff8801bea776d8 ffffffff81d94b69 0000000000000001 ffffffff83c18800 [ 51.218912] ffffffff83f454c0 ffff8801bb923000 0000000000000003 ffff8801bea77718 [ 51.226893] ffffffff81dfc144 ffff8801bea77730 ffffffff83f454c0 dffffc0000000000 [ 51.235014] Call Trace: [ 51.237579] [] dump_stack+0xc1/0x128 [ 51.242921] [] check_preemption_disabled+0x1d4/0x200 [ 51.249655] [] __this_cpu_preempt_check+0x1c/0x20 [ 51.256125] [] ipcomp_init_state+0x188/0x930 [ 51.262161] [] ? __lock_is_held+0xa1/0xf0 [ 51.267974] [] ipcomp4_init_state+0xb0/0x7d0 [ 51.274011] [] __xfrm_init_state+0x3e7/0xb30 [ 51.280042] [] xfrm_init_state+0x1a/0x20 [ 51.285726] [] pfkey_add+0x1fb9/0x3470 [ 51.291241] [] ? pfkey_delete+0x360/0x360 [ 51.297009] [] ? pfkey_seq_stop+0x80/0x80 [ 51.302790] [] ? __skb_clone+0x24a/0x7d0 [ 51.308477] [] ? pfkey_delete+0x360/0x360 [ 51.314265] [] pfkey_process+0x68b/0x750 [ 51.319963] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 51.326788] [