[....] Starting enhanced syslogd: rsyslogd[ 14.459863] audit: type=1400 audit(1517531930.030:4): avc: denied { syslog } for pid=3914 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 '10.128.0.2' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 27.640254] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 27.648970] caller is __this_cpu_preempt_check+0x1c/0x20 [ 27.654394] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 27.662070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.671406] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 27.679404] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 27.687386] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 27.695362] Call Trace: [ 27.697923] [] dump_stack+0xc1/0x128 [ 27.703260] [] check_preemption_disabled+0x1d4/0x200 [ 27.709987] [] __this_cpu_preempt_check+0x1c/0x20 [ 27.716448] [] ipcomp_init_state+0x188/0x930 [ 27.722483] [] ? __lock_is_held+0xa1/0xf0 [ 27.728253] [] ipcomp4_init_state+0xb0/0x7d0 [ 27.734279] [] __xfrm_init_state+0x3e7/0xb30 [ 27.740308] [] xfrm_init_state+0x1a/0x20 [ 27.746006] [] pfkey_add+0x1fb9/0x3470 [ 27.751513] [] ? pfkey_delete+0x360/0x360 [ 27.757298] [] ? pfkey_seq_stop+0x80/0x80 [ 27.763082] [] ? __skb_clone+0x24a/0x7d0 [ 27.768771] [] ? pfkey_delete+0x360/0x360 [ 27.774558] [] pfkey_process+0x68b/0x750 [ 27.780242] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 27.787065] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.794223] [] pfkey_sendmsg+0x3a9/0x760 [ 27.799927] [] ? pfkey_spdget+0x820/0x820 [ 27.805707] [] sock_sendmsg+0xca/0x110 [ 27.811221] [] ___sys_sendmsg+0x6d1/0x7e0 [ 27.816990] [] ? copy_msghdr_from_user+0x550/0x550 [ 27.823552] [] ? __lru_cache_add+0x187/0x250 [ 27.829715] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 27.836802] [] ? _raw_spin_unlock+0x2c/0x50 [ 27.842756] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 27.850186] [] ? handle_mm_fault+0x6ee/0x2530 [ 27.856322] [] ? __lock_is_held+0xa1/0xf0 [ 27.862097] [] ? __pmd_alloc+0x410/0x410 [ 27.867801] [] ? __fget_light+0x158/0x1e0 [ 27.873575] [] ? __fdget+0x18/0x20 [ 27.878739] [] __sys_sendmsg+0xd6/0x190 [ 27.884333] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 27.890118] [] ? __do_page_fault+0x5ec/0xd40 [ 27.896149] [] ? __do_page_fault+0x3bd/0xd40 [ 27.902184] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 27.909004] [] SyS_sendmsg+0x2d/0x50 [ 27.914341] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 27.923798] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 27.932632] caller is __this_cpu_preempt_check+0x1c/0x20 [ 27.938093] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 27.945780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.955111] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 27.963091] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 27.971055] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 27.979018] Call Trace: [ 27.981577] [] dump_stack+0xc1/0x128 [ 27.986915] [] check_preemption_disabled+0x1d4/0x200 [ 27.993667] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.000144] [] ipcomp_init_state+0x188/0x930 [ 28.006180] [] ? __lock_is_held+0xa1/0xf0 [ 28.011957] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.017989] [] __xfrm_init_state+0x3e7/0xb30 [ 28.024016] [] xfrm_init_state+0x1a/0x20 [ 28.029706] [] pfkey_add+0x1fb9/0x3470 [ 28.035212] [] ? pfkey_delete+0x360/0x360 [ 28.040983] [] ? pfkey_seq_stop+0x80/0x80 [ 28.046756] [] ? __skb_clone+0x24a/0x7d0 [ 28.052459] [] ? pfkey_delete+0x360/0x360 [ 28.059013] [] pfkey_process+0x68b/0x750 [ 28.064700] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 28.071513] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.078334] [] pfkey_sendmsg+0x3a9/0x760 [ 28.084016] [] ? pfkey_spdget+0x820/0x820 [ 28.089795] [] sock_sendmsg+0xca/0x110 [ 28.095311] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.101084] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.107640] [] ? __lru_cache_add+0x187/0x250 [ 28.113678] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.120760] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.126711] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.133784] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.139907] [] ? __lock_is_held+0xa1/0xf0 [ 28.145677] [] ? __pmd_alloc+0x410/0x410 [ 28.151363] [] ? __fget_light+0x158/0x1e0 [ 28.157135] [] ? __fdget+0x18/0x20 [ 28.162307] [] __sys_sendmsg+0xd6/0x190 [ 28.167903] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.173672] [] ? __do_page_fault+0x5ec/0xd40 [ 28.179704] [] ? __do_page_fault+0x3bd/0xd40 [ 28.185742] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 28.192568] [] SyS_sendmsg+0x2d/0x50 [ 28.197918] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.207434] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 28.216114] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.221592] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 28.229370] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.238717] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 28.246701] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 28.254693] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 28.262672] Call Trace: [ 28.265241] [] dump_stack+0xc1/0x128 [ 28.270597] [] check_preemption_disabled+0x1d4/0x200 [ 28.277324] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.283809] [] ipcomp_init_state+0x188/0x930 [ 28.289845] [] ? __lock_is_held+0xa1/0xf0 [ 28.295615] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.301648] [] __xfrm_init_state+0x3e7/0xb30 [ 28.307686] [] xfrm_init_state+0x1a/0x20 [ 28.313381] [] pfkey_add+0x1fb9/0x3470 [ 28.318890] [] ? pfkey_delete+0x360/0x360 [ 28.324660] [] ? pfkey_seq_stop+0x80/0x80 [ 28.330434] [] ? __skb_clone+0x24a/0x7d0 [ 28.336116] [] ? pfkey_delete+0x360/0x360 [ 28.341887] [] pfkey_process+0x68b/0x750 [ 28.347574] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 28.354392] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.361210] [] pfkey_sendmsg+0x3a9/0x760 [ 28.366894] [] ? pfkey_spdget+0x820/0x820 [ 28.372673] [] sock_sendmsg+0xca/0x110 [ 28.378184] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.383956] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.390544] [] ? __lru_cache_add+0x187/0x250 [ 28.396587] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.403661] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.409613] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.416701] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.422828] [] ? __lock_is_held+0xa1/0xf0 [ 28.428602] [] ? __pmd_alloc+0x410/0x410 [ 28.434304] [] ? __fget_light+0x158/0x1e0 executing program [ 28.440076] [] ? __fdget+0x18/0x20 [ 28.445368] [] __sys_sendmsg+0xd6/0x190 [ 28.450975] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.456748] [] ? __do_page_fault+0x5ec/0xd40 [ 28.462776] [] ? __do_page_fault+0x3bd/0xd40 [ 28.468812] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.475626] [] SyS_sendmsg+0x2d/0x50 [ 28.480960] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.490400] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 28.499119] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.504551] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 28.512228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.521650] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 28.529669] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 28.537654] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 28.545639] Call Trace: [ 28.548200] [] dump_stack+0xc1/0x128 [ 28.553540] [] check_preemption_disabled+0x1d4/0x200 [ 28.560278] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.566771] [] ipcomp_init_state+0x188/0x930 [ 28.572808] [] ? __lock_is_held+0xa1/0xf0 [ 28.578577] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.584607] [] __xfrm_init_state+0x3e7/0xb30 [ 28.590650] [] xfrm_init_state+0x1a/0x20 [ 28.596338] [] pfkey_add+0x1fb9/0x3470 [ 28.601851] [] ? pfkey_delete+0x360/0x360 [ 28.607628] [] ? pfkey_seq_stop+0x80/0x80 [ 28.613398] [] ? __skb_clone+0x24a/0x7d0 [ 28.619080] [] ? pfkey_delete+0x360/0x360 [ 28.624852] [] pfkey_process+0x68b/0x750 [ 28.630539] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 28.637360] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.644180] [] pfkey_sendmsg+0x3a9/0x760 [ 28.650115] [] ? pfkey_spdget+0x820/0x820 [ 28.655892] [] sock_sendmsg+0xca/0x110 [ 28.661407] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.667178] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.673730] [] ? __lru_cache_add+0x187/0x250 [ 28.679761] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.686835] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.692813] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.699889] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.706021] [] ? __lock_is_held+0xa1/0xf0 [ 28.711800] [] ? __pmd_alloc+0x410/0x410 [ 28.717484] [] ? __fget_light+0x158/0x1e0 [ 28.723254] [] ? __fdget+0x18/0x20 [ 28.728420] [] __sys_sendmsg+0xd6/0x190 [ 28.734016] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 28.739787] [] ? __do_page_fault+0x5ec/0xd40 [ 28.745822] [] ? __do_page_fault+0x3bd/0xd40 [ 28.751864] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.758678] [] SyS_sendmsg+0x2d/0x50 [ 28.764022] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.773322] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 28.782017] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.787478] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 28.795179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.804515] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 28.812515] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 28.820520] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 28.828487] Call Trace: [ 28.831057] [] dump_stack+0xc1/0x128 [ 28.836396] [] check_preemption_disabled+0x1d4/0x200 [ 28.843121] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.849590] [] ipcomp_init_state+0x188/0x930 [ 28.855629] [] ? __lock_is_held+0xa1/0xf0 [ 28.861400] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.867432] [] __xfrm_init_state+0x3e7/0xb30 [ 28.873465] [] xfrm_init_state+0x1a/0x20 [ 28.879150] [] pfkey_add+0x1fb9/0x3470 [ 28.884660] [] ? pfkey_delete+0x360/0x360 [ 28.890429] [] ? pfkey_seq_stop+0x80/0x80 [ 28.896198] [] ? __skb_clone+0x24a/0x7d0 [ 28.901881] [] ? pfkey_delete+0x360/0x360 [ 28.907652] [] pfkey_process+0x68b/0x750 [ 28.913335] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 28.920153] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.926970] [] pfkey_sendmsg+0x3a9/0x760 [ 28.932652] [] ? pfkey_spdget+0x820/0x820 [ 28.938422] [] sock_sendmsg+0xca/0x110 [ 28.943927] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.949696] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.956246] [] ? __lru_cache_add+0x187/0x250 [ 28.962376] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.969451] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.975415] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.982492] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.988630] [] ? __lock_is_held+0xa1/0xf0 [ 28.994420] [] ? __pmd_alloc+0x410/0x410 [ 29.000124] [] ? __fget_light+0x158/0x1e0 [ 29.005922] [] ? __fdget+0x18/0x20 [ 29.011115] [] __sys_sendmsg+0xd6/0x190 [ 29.016715] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.022487] [] ? __do_page_fault+0x5ec/0xd40 [ 29.028521] [] ? __do_page_fault+0x3bd/0xd40 [ 29.034555] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 29.041370] [] SyS_sendmsg+0x2d/0x50 [ 29.046708] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.055825] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 29.064513] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.069967] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 29.077653] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.086983] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 29.094955] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 29.102921] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 29.110896] Call Trace: [ 29.113458] [] dump_stack+0xc1/0x128 [ 29.118814] [] check_preemption_disabled+0x1d4/0x200 [ 29.125541] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.132005] [] ipcomp_init_state+0x188/0x930 [ 29.138039] [] ? __lock_is_held+0xa1/0xf0 [ 29.143808] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.149839] [] __xfrm_init_state+0x3e7/0xb30 [ 29.155869] [] xfrm_init_state+0x1a/0x20 [ 29.161561] [] pfkey_add+0x1fb9/0x3470 [ 29.167076] [] ? pfkey_delete+0x360/0x360 [ 29.172841] [] ? pfkey_seq_stop+0x80/0x80 [ 29.178621] [] ? __skb_clone+0x24a/0x7d0 [ 29.184308] [] ? pfkey_delete+0x360/0x360 [ 29.190080] [] pfkey_process+0x68b/0x750 [ 29.195760] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 29.202588] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.209406] [] pfkey_sendmsg+0x3a9/0x760 [ 29.215089] [] ? pfkey_spdget+0x820/0x820 [ 29.220864] [] sock_sendmsg+0xca/0x110 [ 29.226374] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.232151] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.238790] [] ? __lru_cache_add+0x187/0x250 [ 29.244818] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.251892] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.257848] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.264925] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.271047] [] ? __lock_is_held+0xa1/0xf0 [ 29.276817] [] ? __pmd_alloc+0x410/0x410 [ 29.282510] [] ? __fget_light+0x158/0x1e0 [ 29.288281] [] ? __fdget+0x18/0x20 executing program [ 29.293441] [] __sys_sendmsg+0xd6/0x190 [ 29.299035] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.304803] [] ? __do_page_fault+0x5ec/0xd40 [ 29.310833] [] ? __do_page_fault+0x3bd/0xd40 [ 29.316867] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.323678] [] SyS_sendmsg+0x2d/0x50 [ 29.329013] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.338135] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 29.346805] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.352296] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 29.359986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.369319] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 29.377297] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 29.385272] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 29.393241] Call Trace: [ 29.395814] [] dump_stack+0xc1/0x128 [ 29.401152] [] check_preemption_disabled+0x1d4/0x200 [ 29.407885] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.414355] [] ipcomp_init_state+0x188/0x930 [ 29.420386] [] ? __lock_is_held+0xa1/0xf0 [ 29.426156] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.432184] [] __xfrm_init_state+0x3e7/0xb30 [ 29.438224] [] xfrm_init_state+0x1a/0x20 [ 29.443912] [] pfkey_add+0x1fb9/0x3470 [ 29.449424] [] ? pfkey_delete+0x360/0x360 [ 29.455198] [] ? pfkey_seq_stop+0x80/0x80 [ 29.460968] [] ? __skb_clone+0x24a/0x7d0 [ 29.466655] [] ? pfkey_delete+0x360/0x360 [ 29.472427] [] pfkey_process+0x68b/0x750 [ 29.478118] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 29.484954] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.491772] [] pfkey_sendmsg+0x3a9/0x760 [ 29.497459] [] ? pfkey_spdget+0x820/0x820 [ 29.503238] [] sock_sendmsg+0xca/0x110 [ 29.508756] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.514541] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.521115] [] ? __lru_cache_add+0x187/0x250 [ 29.527155] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.534233] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.540180] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.547266] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.553396] [] ? __lock_is_held+0xa1/0xf0 [ 29.559166] [] ? __pmd_alloc+0x410/0x410 [ 29.564850] [] ? __fget_light+0x158/0x1e0 [ 29.570629] [] ? __fdget+0x18/0x20 [ 29.575797] [] __sys_sendmsg+0xd6/0x190 [ 29.581393] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.587165] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 29.593198] [] ? __do_page_fault+0x3bd/0xd40 [ 29.599232] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.606044] [] SyS_sendmsg+0x2d/0x50 [ 29.611381] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.621013] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 29.629730] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.635177] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 29.642861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.652295] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 29.660271] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 29.668273] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 29.676278] Call Trace: [ 29.678847] [] dump_stack+0xc1/0x128 [ 29.684187] [] check_preemption_disabled+0x1d4/0x200 [ 29.690928] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.697400] [] ipcomp_init_state+0x188/0x930 [ 29.703435] [] ? __lock_is_held+0xa1/0xf0 [ 29.709210] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.715240] [] __xfrm_init_state+0x3e7/0xb30 [ 29.721275] [] xfrm_init_state+0x1a/0x20 [ 29.726962] [] pfkey_add+0x1fb9/0x3470 [ 29.732495] [] ? pfkey_delete+0x360/0x360 [ 29.738302] [] ? pfkey_seq_stop+0x80/0x80 [ 29.744084] [] ? __skb_clone+0x24a/0x7d0 [ 29.749776] [] ? pfkey_delete+0x360/0x360 [ 29.755551] [] pfkey_process+0x68b/0x750 [ 29.761238] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 29.768061] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.774890] [] pfkey_sendmsg+0x3a9/0x760 [ 29.780577] [] ? pfkey_spdget+0x820/0x820 [ 29.786345] [] sock_sendmsg+0xca/0x110 [ 29.791860] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.797632] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.804195] [] ? __lru_cache_add+0x187/0x250 [ 29.810236] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.817324] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.823276] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.830353] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.836490] [] ? __lock_is_held+0xa1/0xf0 [ 29.842269] [] ? __pmd_alloc+0x410/0x410 [ 29.847952] [] ? __fget_light+0x158/0x1e0 [ 29.853723] [] ? __fdget+0x18/0x20 [ 29.858888] [] __sys_sendmsg+0xd6/0x190 [ 29.864486] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.870276] [] ? __do_page_fault+0x5ec/0xd40 [ 29.876311] [] ? __do_page_fault+0x3bd/0xd40 [ 29.882354] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.889176] [] SyS_sendmsg+0x2d/0x50 executing program [ 29.894526] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.903715] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 29.912415] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.917890] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 29.925588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.934922] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 29.942911] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 29.950899] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 29.958899] Call Trace: [ 29.961490] [] dump_stack+0xc1/0x128 [ 29.966838] [] check_preemption_disabled+0x1d4/0x200 [ 29.973572] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.980042] [] ipcomp_init_state+0x188/0x930 [ 29.986074] [] ? __lock_is_held+0xa1/0xf0 [ 29.991851] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.997896] [] __xfrm_init_state+0x3e7/0xb30 [ 30.003926] [] xfrm_init_state+0x1a/0x20 [ 30.009611] [] pfkey_add+0x1fb9/0x3470 [ 30.015117] [] ? pfkey_delete+0x360/0x360 [ 30.020885] [] ? pfkey_seq_stop+0x80/0x80 [ 30.026669] [] ? __skb_clone+0x24a/0x7d0 [ 30.032357] [] ? pfkey_delete+0x360/0x360 [ 30.038128] [] pfkey_process+0x68b/0x750 [ 30.043819] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 30.050721] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.058515] [] pfkey_sendmsg+0x3a9/0x760 [ 30.064197] [] ? pfkey_spdget+0x820/0x820 [ 30.069967] [] sock_sendmsg+0xca/0x110 [ 30.075491] [] ___sys_sendmsg+0x6d1/0x7e0 [ 30.081262] [] ? copy_msghdr_from_user+0x550/0x550 [ 30.087816] [] ? __lru_cache_add+0x187/0x250 [ 30.093850] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 30.100928] [] ? _raw_spin_unlock+0x2c/0x50 [ 30.106872] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 30.114364] [] ? handle_mm_fault+0x6ee/0x2530 [ 30.120510] [] ? __lock_is_held+0xa1/0xf0 [ 30.126280] [] ? __pmd_alloc+0x410/0x410 [ 30.132053] [] ? __fget_light+0x158/0x1e0 [ 30.137824] [] ? __fdget+0x18/0x20 [ 30.142992] [] __sys_sendmsg+0xd6/0x190 executing program [ 30.148847] [] ? SyS_shutdown+0x1b0/0x1b0 [ 30.154619] [] ? __do_page_fault+0x5ec/0xd40 [ 30.160652] [] ? __do_page_fault+0x3bd/0xd40 [ 30.166686] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.173501] [] SyS_sendmsg+0x2d/0x50 [ 30.178839] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 30.188169] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller055730/4071 [ 30.196847] caller is __this_cpu_preempt_check+0x1c/0x20 [ 30.202327] CPU: 0 PID: 4071 Comm: syzkaller055730 Not tainted 4.9.79-g71f1469 #25 [ 30.210015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.219348] ffff8801b33c76d8 ffffffff81d94829 0000000000000000 ffffffff83c18800 [ 30.227348] ffffffff83f454c0 ffff8801d8f2e000 0000000000000003 ffff8801b33c7718 [ 30.235380] ffffffff81dfbe04 ffff8801b33c7730 ffffffff83f454c0 dffffc0000000000 [ 30.243356] Call Trace: [ 30.245915] [] dump_stack+0xc1/0x128 [ 30.251267] [] check_preemption_disabled+0x1d4/0x200 [ 30.257993] [] __this_cpu_preempt_check+0x1c/0x20 [ 30.264463] [] ipcomp_init_state+0x188/0x930 [ 30.270587] [] ? __lock_is_held+0xa1/0xf0 [ 30.276363] [] ipcomp4_init_state+0xb0/0x7d0 [ 30.282392] [] __xfrm_init_state+0x3e7/0xb30 [ 30.288424] [] xfrm_init_state+0x1a/0x20 [ 30.294119] [] pfkey_add+0x1fb9/0x3470 [ 30.299632] [] ? pfkey_delete+0x360/0x360 [ 30.305402] [] ? pfkey_seq_stop+0x80/0x80 [ 30.311174] [] ? __skb_clone+0x24a/0x7d0 [ 30.316859] [] ? pfkey_delete+0x360/0x360 [ 30.322636] [] pfkey_process+0x68b/0x750 [ 30.328321] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 30.335137] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.341971] [] pfkey_sendmsg+0x3a9/0x760 [ 30.347664] [] ? pfkey_spdget+0x820/0x820 [ 30.353450] [] sock_sendmsg+0xca/0x110 [ 30.358993] [] ___sys_sendmsg+0x6d1/0x7e0 [ 30.364779] [] ? copy_msghdr_from_user+0x550/0x550 [ 30.371343] [] ? __lru_cache_add+0x187/0x250 [ 30.377388] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 30.384484] [] ? _raw_spin_unlock+0x2c/0x50 [ 30.390468] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 30.397561] [] ? handle_mm_fault+0x6ee/0x2530 [ 30.403697] [] ? __lock_is_held+0xa1/0xf0 [ 30.409496] [] ? __pmd_alloc+0x410/0x410 [ 30.415212] [] ? __fget_light+0x158/0x1e0 [ 30.421003] [] ? __fdget+0x18/0x20 [ 30.426194] [] __sys_sendmsg+0xd6/0x190 [ 30.431806] [] ? SyS_shutdown+0x1b0/0x1b0 [ 30.437586] [] ? __do_page_fault+0x5ec/0xd40 [ 30.443619] [] ? __do_page_fault+0x3bd/0xd40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 30.449660] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.456480] [] SyS_sendmsg+0x2d/0x50 [ 30.461822] [] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program