[....] Starting enhanced syslogd: rsyslogd[ 13.104632] audit: type=1400 audit(1515905207.770:4): avc: denied { syslog } for pid=3169 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[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 '10.128.15.244' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 37.211545] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3341 [ 37.220309] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.225749] CPU: 1 PID: 3341 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 37.233442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.242779] ffff8801c84c7668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 37.250767] ffffffff83f44900 ffff8801ca039800 0000000000000003 ffff8801c84c76a8 [ 37.258741] ffffffff81dfa714 ffff8801c84c76c0 ffffffff83f44900 dffffc0000000000 [ 37.266715] Call Trace: [ 37.269277] [] dump_stack+0xc1/0x128 [ 37.274615] [] check_preemption_disabled+0x1d4/0x200 [ 37.281341] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.287813] [] ipcomp_init_state+0x188/0x930 [ 37.293847] [] ? __lock_is_held+0xa1/0xf0 [ 37.299615] [] ipcomp4_init_state+0xb0/0x7d0 [ 37.305647] [] __xfrm_init_state+0x3e7/0xb30 [ 37.311677] [] xfrm_init_state+0x1a/0x20 [ 37.317362] [] pfkey_add+0x1fb9/0x3470 [ 37.322873] [] ? pfkey_delete+0x360/0x360 [ 37.328644] [] ? pfkey_seq_stop+0x80/0x80 [ 37.334417] [] ? __skb_clone+0x24a/0x7d0 [ 37.340098] [] ? pfkey_delete+0x360/0x360 [ 37.345867] [] pfkey_process+0x61e/0x730 [ 37.351552] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 37.358368] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 37.365183] [] pfkey_sendmsg+0x3a9/0x760 [ 37.370868] [] ? pfkey_spdget+0x820/0x820 [ 37.376658] [] sock_sendmsg+0xca/0x110 [ 37.382175] [] ___sys_sendmsg+0x6d1/0x7e0 [ 37.387946] [] ? copy_msghdr_from_user+0x550/0x550 [ 37.394501] [] ? __lru_cache_add+0x187/0x250 [ 37.400547] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 37.407622] [] ? _raw_spin_unlock+0x2c/0x50 [ 37.413568] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 37.420645] [] ? handle_mm_fault+0x6ee/0x2530 [ 37.426768] [] ? __fget_light+0x158/0x1e0 [ 37.432541] [] ? __fdget+0x18/0x20 [ 37.437706] [] ? sockfd_lookup_light+0x118/0x160 [ 37.444089] [] __sys_sendmsg+0xd6/0x190 [ 37.449694] [] ? SyS_shutdown+0x1b0/0x1b0 [ 37.455483] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 37.461522] [] compat_SyS_sendmsg+0x2a/0x40 [ 37.467468] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 37.474022] [] do_fast_syscall_32+0x2f7/0x890 [ 37.480152] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.486796] [] entry_SYSENTER_compat+0x74/0x83 [ 37.494625] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3342 [ 37.503436] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.508913] CPU: 0 PID: 3342 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 37.516595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.525930] ffff8801c8647668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 37.533927] ffffffff83f44900 ffff8801ca038000 0000000000000003 ffff8801c86476a8 [ 37.541893] ffffffff81dfa714 ffff8801c86476c0 ffffffff83f44900 dffffc0000000000 [ 37.549866] Call Trace: [ 37.552436] [] dump_stack+0xc1/0x128 [ 37.557783] [] check_preemption_disabled+0x1d4/0x200 [ 37.564514] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.570983] [] ipcomp_init_state+0x188/0x930 [ 37.577016] [] ? __lock_is_held+0xa1/0xf0 [ 37.582784] [] ipcomp4_init_state+0xb0/0x7d0 [ 37.588812] [] __xfrm_init_state+0x3e7/0xb30 [ 37.594843] [] xfrm_init_state+0x1a/0x20 [ 37.600530] [] pfkey_add+0x1fb9/0x3470 [ 37.606052] [] ? pfkey_delete+0x360/0x360 [ 37.611833] [] ? pfkey_seq_stop+0x80/0x80 [ 37.617605] [] ? __skb_clone+0x24a/0x7d0 [ 37.623290] [] ? pfkey_delete+0x360/0x360 [ 37.629058] [] pfkey_process+0x61e/0x730 [ 37.634742] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 37.641555] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 37.648369] [] pfkey_sendmsg+0x3a9/0x760 [ 37.654051] [] ? pfkey_spdget+0x820/0x820 [ 37.659823] [] sock_sendmsg+0xca/0x110 [ 37.665331] [] ___sys_sendmsg+0x6d1/0x7e0 [ 37.671099] [] ? copy_msghdr_from_user+0x550/0x550 [ 37.677666] [] ? __lru_cache_add+0x187/0x250 [ 37.683701] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 37.690777] [] ? _raw_spin_unlock+0x2c/0x50 [ 37.696722] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 37.703796] [] ? handle_mm_fault+0x6ee/0x2530 [ 37.709914] [] ? __fget_light+0x158/0x1e0 [ 37.715680] [] ? __fdget+0x18/0x20 [ 37.720844] [] ? sockfd_lookup_light+0x118/0x160 [ 37.727227] [] __sys_sendmsg+0xd6/0x190 [ 37.732823] [] ? SyS_shutdown+0x1b0/0x1b0 [ 37.738593] [] ? __do_page_fault+0x5ec/0xd40 [ 37.744640] [] compat_SyS_sendmsg+0x2a/0x40 [ 37.750588] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 37.757140] [] do_fast_syscall_32+0x2f7/0x890 executing program [ 37.763261] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.769898] [] entry_SYSENTER_compat+0x74/0x83 [ 37.777496] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3339 [ 37.786306] caller is __this_cpu_preempt_check+0x1c/0x20 [ 37.791782] CPU: 0 PID: 3339 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 37.799465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.808884] ffff8801c8667668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 37.816858] ffffffff83f44900 ffff8801ca03c800 0000000000000003 ffff8801c86676a8 [ 37.824827] ffffffff81dfa714 ffff8801c86676c0 ffffffff83f44900 dffffc0000000000 [ 37.832800] Call Trace: [ 37.835374] [] dump_stack+0xc1/0x128 [ 37.840712] [] check_preemption_disabled+0x1d4/0x200 [ 37.847449] [] __this_cpu_preempt_check+0x1c/0x20 [ 37.853917] [] ipcomp_init_state+0x188/0x930 [ 37.859947] [] ? __lock_is_held+0xa1/0xf0 [ 37.865716] [] ipcomp4_init_state+0xb0/0x7d0 [ 37.871746] [] __xfrm_init_state+0x3e7/0xb30 [ 37.877788] [] xfrm_init_state+0x1a/0x20 [ 37.883476] [] pfkey_add+0x1fb9/0x3470 [ 37.888985] [] ? pfkey_delete+0x360/0x360 [ 37.894761] [] ? pfkey_seq_stop+0x80/0x80 [ 37.900532] [] ? __skb_clone+0x24a/0x7d0 [ 37.906214] [] ? pfkey_delete+0x360/0x360 [ 37.911984] [] pfkey_process+0x61e/0x730 [ 37.917663] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 37.924476] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 37.931294] [] pfkey_sendmsg+0x3a9/0x760 [ 37.936984] [] ? pfkey_spdget+0x820/0x820 [ 37.942759] [] sock_sendmsg+0xca/0x110 [ 37.948269] [] ___sys_sendmsg+0x6d1/0x7e0 [ 37.954040] [] ? copy_msghdr_from_user+0x550/0x550 [ 37.960592] [] ? __lru_cache_add+0x187/0x250 [ 37.966623] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 37.973700] [] ? _raw_spin_unlock+0x2c/0x50 [ 37.979645] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 37.986717] [] ? handle_mm_fault+0x6ee/0x2530 [ 37.992833] [] ? __fget_light+0x158/0x1e0 [ 37.998600] [] ? __fdget+0x18/0x20 [ 38.003765] [] ? sockfd_lookup_light+0x118/0x160 [ 38.010145] [] __sys_sendmsg+0xd6/0x190 [ 38.015740] [] ? SyS_shutdown+0x1b0/0x1b0 [ 38.021511] [] ? __do_page_fault+0x5ec/0xd40 [ 38.027543] [] compat_SyS_sendmsg+0x2a/0x40 [ 38.033486] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 38.040039] [] do_fast_syscall_32+0x2f7/0x890 [ 38.046164] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.052805] [] entry_SYSENTER_compat+0x74/0x83 executing program [ 38.059636] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3340 [ 38.068285] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.073786] CPU: 0 PID: 3340 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 38.081465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.090794] ffff8801c866f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 38.098793] ffffffff83f44900 ffff8801ca03b000 0000000000000003 ffff8801c866f6a8 [ 38.106762] ffffffff81dfa714 ffff8801c866f6c0 ffffffff83f44900 dffffc0000000000 [ 38.114726] Call Trace: [ 38.117308] [] dump_stack+0xc1/0x128 [ 38.122646] [] check_preemption_disabled+0x1d4/0x200 [ 38.129381] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.135855] [] ipcomp_init_state+0x188/0x930 [ 38.141884] [] ? __lock_is_held+0xa1/0xf0 [ 38.147652] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.153683] [] __xfrm_init_state+0x3e7/0xb30 [ 38.159718] [] xfrm_init_state+0x1a/0x20 [ 38.165402] [] pfkey_add+0x1fb9/0x3470 [ 38.170907] [] ? pfkey_delete+0x360/0x360 [ 38.176673] [] ? pfkey_seq_stop+0x80/0x80 [ 38.182442] [] ? __skb_clone+0x24a/0x7d0 [ 38.188120] [] ? pfkey_delete+0x360/0x360 [ 38.193888] [] pfkey_process+0x61e/0x730 [ 38.199566] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 38.206375] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.213187] [] pfkey_sendmsg+0x3a9/0x760 [ 38.218867] [] ? pfkey_spdget+0x820/0x820 [ 38.224637] [] sock_sendmsg+0xca/0x110 [ 38.230142] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.235907] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.242458] [] ? __lru_cache_add+0x187/0x250 [ 38.248488] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.255559] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.261499] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.268573] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.274700] [] ? __fget_light+0x158/0x1e0 [ 38.280470] [] ? __fdget+0x18/0x20 [ 38.285632] [] ? sockfd_lookup_light+0x118/0x160 [ 38.292007] [] __sys_sendmsg+0xd6/0x190 [ 38.297599] [] ? SyS_shutdown+0x1b0/0x1b0 [ 38.303373] [] ? __do_page_fault+0x5ec/0xd40 [ 38.309415] [] compat_SyS_sendmsg+0x2a/0x40 executing program [ 38.315356] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 38.321920] [] do_fast_syscall_32+0x2f7/0x890 [ 38.328036] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.334673] [] entry_SYSENTER_compat+0x74/0x83 [ 38.341648] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3336 [ 38.350446] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.355879] CPU: 0 PID: 3336 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 38.363567] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.372908] ffff8801c8717668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 38.380891] ffffffff83f44900 ffff8801ca119800 0000000000000003 ffff8801c87176a8 [ 38.388857] ffffffff81dfa714 ffff8801c87176c0 ffffffff83f44900 dffffc0000000000 [ 38.396826] Call Trace: [ 38.399386] [] dump_stack+0xc1/0x128 [ 38.404722] [] check_preemption_disabled+0x1d4/0x200 [ 38.411535] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.417999] [] ipcomp_init_state+0x188/0x930 [ 38.424030] [] ? __lock_is_held+0xa1/0xf0 [ 38.429805] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.435833] [] __xfrm_init_state+0x3e7/0xb30 [ 38.441862] [] xfrm_init_state+0x1a/0x20 [ 38.447545] [] pfkey_add+0x1fb9/0x3470 [ 38.453054] [] ? pfkey_delete+0x360/0x360 [ 38.458820] [] ? pfkey_seq_stop+0x80/0x80 [ 38.464590] [] ? __skb_clone+0x24a/0x7d0 [ 38.470272] [] ? pfkey_delete+0x360/0x360 [ 38.476038] [] pfkey_process+0x61e/0x730 [ 38.481719] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 38.488532] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.495345] [] pfkey_sendmsg+0x3a9/0x760 [ 38.501026] [] ? pfkey_spdget+0x820/0x820 [ 38.506797] [] sock_sendmsg+0xca/0x110 [ 38.512307] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.518076] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.524630] [] ? __lru_cache_add+0x187/0x250 [ 38.530660] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.537746] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.543699] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.550771] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.556890] [] ? __fget_light+0x158/0x1e0 [ 38.562659] [] ? __fdget+0x18/0x20 [ 38.567820] [] ? sockfd_lookup_light+0x118/0x160 [ 38.574197] [] __sys_sendmsg+0xd6/0x190 [ 38.579794] [] ? SyS_shutdown+0x1b0/0x1b0 [ 38.585565] [] ? __do_page_fault+0x5ec/0xd40 [ 38.591601] [] compat_SyS_sendmsg+0x2a/0x40 [ 38.597543] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 38.604095] [] do_fast_syscall_32+0x2f7/0x890 [ 38.610213] [] ? trace_hardirqs_off_thunk+0x1a/0x1c executing program [ 38.616858] [] entry_SYSENTER_compat+0x74/0x83 [ 38.623642] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3343 [ 38.632342] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.637764] CPU: 0 PID: 3343 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 38.645440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.654765] ffff8801c8517668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 38.662750] ffffffff83f44900 ffff8801c8648000 0000000000000003 ffff8801c85176a8 [ 38.670743] ffffffff81dfa714 ffff8801c85176c0 ffffffff83f44900 dffffc0000000000 [ 38.678754] Call Trace: [ 38.681320] [] dump_stack+0xc1/0x128 [ 38.686656] [] check_preemption_disabled+0x1d4/0x200 [ 38.693382] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.699851] [] ipcomp_init_state+0x188/0x930 [ 38.705882] [] ? __lock_is_held+0xa1/0xf0 [ 38.711652] [] ipcomp4_init_state+0xb0/0x7d0 [ 38.717679] [] __xfrm_init_state+0x3e7/0xb30 [ 38.723707] [] xfrm_init_state+0x1a/0x20 [ 38.729393] [] pfkey_add+0x1fb9/0x3470 [ 38.734899] [] ? pfkey_delete+0x360/0x360 [ 38.740664] [] ? pfkey_seq_stop+0x80/0x80 [ 38.746441] [] ? __skb_clone+0x24a/0x7d0 [ 38.752122] [] ? pfkey_delete+0x360/0x360 [ 38.757899] [] pfkey_process+0x61e/0x730 [ 38.763579] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 38.770396] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 38.777207] [] pfkey_sendmsg+0x3a9/0x760 [ 38.782893] [] ? pfkey_spdget+0x820/0x820 [ 38.788673] [] sock_sendmsg+0xca/0x110 [ 38.794186] [] ___sys_sendmsg+0x6d1/0x7e0 [ 38.799964] [] ? copy_msghdr_from_user+0x550/0x550 [ 38.806515] [] ? __lru_cache_add+0x187/0x250 [ 38.812542] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 38.819612] [] ? _raw_spin_unlock+0x2c/0x50 [ 38.825554] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 38.832622] [] ? handle_mm_fault+0x6ee/0x2530 [ 38.838735] [] ? __fget_light+0x158/0x1e0 [ 38.844503] [] ? __fdget+0x18/0x20 [ 38.849664] [] ? sockfd_lookup_light+0x118/0x160 [ 38.856037] [] __sys_sendmsg+0xd6/0x190 [ 38.861631] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 38.867402] [] ? __do_page_fault+0x5ec/0xd40 [ 38.873433] [] compat_SyS_sendmsg+0x2a/0x40 [ 38.879389] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 38.885949] [] do_fast_syscall_32+0x2f7/0x890 [ 38.892065] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 38.898703] [] entry_SYSENTER_compat+0x74/0x83 [ 38.905998] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3338 [ 38.914768] caller is __this_cpu_preempt_check+0x1c/0x20 [ 38.920242] CPU: 0 PID: 3338 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 38.927921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.937251] ffff8801c853f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 38.945219] ffffffff83f44900 ffff8801ca03e000 0000000000000003 ffff8801c853f6a8 [ 38.953193] ffffffff81dfa714 ffff8801c853f6c0 ffffffff83f44900 dffffc0000000000 [ 38.961168] Call Trace: [ 38.963729] [] dump_stack+0xc1/0x128 [ 38.969074] [] check_preemption_disabled+0x1d4/0x200 [ 38.975796] [] __this_cpu_preempt_check+0x1c/0x20 [ 38.982274] [] ipcomp_init_state+0x188/0x930 [ 38.988302] [] ? __lock_is_held+0xa1/0xf0 [ 38.994068] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.000097] [] __xfrm_init_state+0x3e7/0xb30 [ 39.006125] [] xfrm_init_state+0x1a/0x20 [ 39.011812] [] pfkey_add+0x1fb9/0x3470 [ 39.017321] [] ? pfkey_delete+0x360/0x360 [ 39.023678] [] ? pfkey_seq_stop+0x80/0x80 [ 39.029452] [] ? __skb_clone+0x24a/0x7d0 [ 39.035132] [] ? pfkey_delete+0x360/0x360 [ 39.040899] [] pfkey_process+0x61e/0x730 [ 39.046590] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 39.053402] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.060211] [] pfkey_sendmsg+0x3a9/0x760 [ 39.065890] [] ? pfkey_spdget+0x820/0x820 [ 39.071657] [] sock_sendmsg+0xca/0x110 [ 39.077163] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.082932] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.089494] [] ? __lru_cache_add+0x187/0x250 [ 39.095523] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.102594] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.108973] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.116057] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.122195] [] ? __fget_light+0x158/0x1e0 [ 39.127964] [] ? __fdget+0x18/0x20 [ 39.133141] [] ? sockfd_lookup_light+0x118/0x160 [ 39.139515] [] __sys_sendmsg+0xd6/0x190 [ 39.145108] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.150877] [] ? __do_page_fault+0x5ec/0xd40 [ 39.156905] [] compat_SyS_sendmsg+0x2a/0x40 [ 39.162849] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 executing program [ 39.169402] [] do_fast_syscall_32+0x2f7/0x890 [ 39.175516] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.182156] [] entry_SYSENTER_compat+0x74/0x83 [ 39.188987] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3337 [ 39.197631] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.203097] CPU: 0 PID: 3337 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 39.210783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.220118] ffff8801c871f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 39.228090] ffffffff83f44900 ffff8801ca118000 0000000000000003 ffff8801c871f6a8 [ 39.236052] ffffffff81dfa714 ffff8801c871f6c0 ffffffff83f44900 dffffc0000000000 [ 39.244280] Call Trace: [ 39.246849] [] dump_stack+0xc1/0x128 [ 39.252188] [] check_preemption_disabled+0x1d4/0x200 [ 39.258917] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.265379] [] ipcomp_init_state+0x188/0x930 [ 39.271409] [] ? __lock_is_held+0xa1/0xf0 [ 39.277175] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.283200] [] __xfrm_init_state+0x3e7/0xb30 [ 39.289225] [] xfrm_init_state+0x1a/0x20 [ 39.294914] [] pfkey_add+0x1fb9/0x3470 [ 39.300419] [] ? pfkey_delete+0x360/0x360 [ 39.306185] [] ? pfkey_seq_stop+0x80/0x80 [ 39.311954] [] ? __skb_clone+0x24a/0x7d0 [ 39.317630] [] ? pfkey_delete+0x360/0x360 [ 39.323398] [] pfkey_process+0x61e/0x730 [ 39.329085] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 39.335892] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.342698] [] pfkey_sendmsg+0x3a9/0x760 [ 39.348378] [] ? pfkey_spdget+0x820/0x820 [ 39.354146] [] sock_sendmsg+0xca/0x110 [ 39.359651] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.365418] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.371970] [] ? __lru_cache_add+0x187/0x250 [ 39.377996] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.385067] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.391007] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.398074] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.404188] [] ? __fget_light+0x158/0x1e0 [ 39.409955] [] ? __fdget+0x18/0x20 [ 39.415124] [] ? sockfd_lookup_light+0x118/0x160 [ 39.421500] [] __sys_sendmsg+0xd6/0x190 [ 39.427093] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.432865] [] ? __do_page_fault+0x5ec/0xd40 [ 39.438894] [] compat_SyS_sendmsg+0x2a/0x40 [ 39.444844] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 39.451399] [] do_fast_syscall_32+0x2f7/0x890 [ 39.457513] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.464147] [] entry_SYSENTER_compat+0x74/0x83 executing program [ 39.471277] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3341 [ 39.480041] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.485470] CPU: 1 PID: 3341 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 39.493146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.502473] ffff8801c84c7668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 39.510447] ffffffff83f44900 ffff8801ca039800 0000000000000003 ffff8801c84c76a8 [ 39.518427] ffffffff81dfa714 ffff8801c84c76c0 ffffffff83f44900 dffffc0000000000 [ 39.526398] Call Trace: [ 39.528961] [] dump_stack+0xc1/0x128 [ 39.534315] [] check_preemption_disabled+0x1d4/0x200 [ 39.541041] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.547506] [] ipcomp_init_state+0x188/0x930 [ 39.553541] [] ? __lock_is_held+0xa1/0xf0 [ 39.559311] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.565339] [] __xfrm_init_state+0x3e7/0xb30 [ 39.571376] [] xfrm_init_state+0x1a/0x20 [ 39.577155] [] pfkey_add+0x1fb9/0x3470 [ 39.582662] [] ? pfkey_delete+0x360/0x360 [ 39.588429] [] ? pfkey_seq_stop+0x80/0x80 [ 39.594208] [] ? __skb_clone+0x24a/0x7d0 [ 39.599893] [] ? pfkey_delete+0x360/0x360 [ 39.605661] [] pfkey_process+0x61e/0x730 [ 39.611341] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 39.618164] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.624973] [] pfkey_sendmsg+0x3a9/0x760 [ 39.630654] [] ? pfkey_spdget+0x820/0x820 [ 39.636422] [] sock_sendmsg+0xca/0x110 [ 39.641928] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.647697] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.654256] [] ? __lru_cache_add+0x187/0x250 [ 39.660303] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.667378] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.673322] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.680402] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.686520] [] ? __fget_light+0x158/0x1e0 [ 39.692288] [] ? __fdget+0x18/0x20 [ 39.697450] [] ? sockfd_lookup_light+0x118/0x160 [ 39.703847] [] __sys_sendmsg+0xd6/0x190 [ 39.709443] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.715240] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 39.721277] [] compat_SyS_sendmsg+0x2a/0x40 [ 39.727221] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 39.733775] [] do_fast_syscall_32+0x2f7/0x890 [ 39.739894] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.746536] [] entry_SYSENTER_compat+0x74/0x83 [ 39.753589] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3342 [ 39.762302] caller is __this_cpu_preempt_check+0x1c/0x20 [ 39.767746] CPU: 1 PID: 3342 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 39.775422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.784746] ffff8801c8647668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 39.792713] ffffffff83f44900 ffff8801ca038000 0000000000000003 ffff8801c86476a8 [ 39.800675] ffffffff81dfa714 ffff8801c86476c0 ffffffff83f44900 dffffc0000000000 [ 39.808650] Call Trace: [ 39.811209] [] dump_stack+0xc1/0x128 [ 39.816542] [] check_preemption_disabled+0x1d4/0x200 [ 39.823265] [] __this_cpu_preempt_check+0x1c/0x20 [ 39.829726] [] ipcomp_init_state+0x188/0x930 [ 39.835753] [] ? __lock_is_held+0xa1/0xf0 [ 39.841521] [] ipcomp4_init_state+0xb0/0x7d0 [ 39.847548] [] __xfrm_init_state+0x3e7/0xb30 [ 39.853574] [] xfrm_init_state+0x1a/0x20 [ 39.859257] [] pfkey_add+0x1fb9/0x3470 [ 39.864760] [] ? pfkey_delete+0x360/0x360 [ 39.870526] [] ? pfkey_seq_stop+0x80/0x80 [ 39.876295] [] ? __skb_clone+0x24a/0x7d0 [ 39.881975] [] ? pfkey_delete+0x360/0x360 [ 39.887743] [] pfkey_process+0x61e/0x730 [ 39.893422] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 39.900232] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 39.907041] [] pfkey_sendmsg+0x3a9/0x760 [ 39.912725] [] ? pfkey_spdget+0x820/0x820 [ 39.918491] [] sock_sendmsg+0xca/0x110 [ 39.923998] [] ___sys_sendmsg+0x6d1/0x7e0 [ 39.929765] [] ? copy_msghdr_from_user+0x550/0x550 [ 39.936331] [] ? __lru_cache_add+0x187/0x250 [ 39.942362] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 39.949447] [] ? _raw_spin_unlock+0x2c/0x50 [ 39.955395] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 39.962464] [] ? handle_mm_fault+0x6ee/0x2530 [ 39.968579] [] ? __fget_light+0x158/0x1e0 [ 39.974342] [] ? __fdget+0x18/0x20 [ 39.979504] [] ? sockfd_lookup_light+0x118/0x160 [ 39.985882] [] __sys_sendmsg+0xd6/0x190 [ 39.991482] [] ? SyS_shutdown+0x1b0/0x1b0 [ 39.997253] [] ? __do_page_fault+0x5ec/0xd40 [ 40.003304] [] compat_SyS_sendmsg+0x2a/0x40 [ 40.009246] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 40.015792] [] do_fast_syscall_32+0x2f7/0x890 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 40.021905] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.028541] [] entry_SYSENTER_compat+0x74/0x83 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 42.222403] check_preemption_disabled: 1198 callbacks suppressed [ 42.222410] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller165733/3337 [ 42.237247] caller is __this_cpu_preempt_check+0x1c/0x20 [ 42.242717] CPU: 1 PID: 3337 Comm: syzkaller165733 Not tainted 4.9.76-g8e170a5 #21 [ 42.250403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.259738] ffff8801c871f668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 42.267709] ffffffff83f44900 ffff8801ca118000 0000000000000003 ffff8801c871f6a8 [ 42.275676] ffffffff81dfa714 ffff8801c871f6c0 ffffffff83f44900 dffffc0000000000 [ 42.283637] Call Trace: [ 42.286195] [] dump_stack+0xc1/0x128 [ 42.291529] [] check_preemption_disabled+0x1d4/0x200 [ 42.298250] [] __this_cpu_preempt_check+0x1c/0x20 [ 42.304713] [] ipcomp_init_state+0x188/0x930 [ 42.310741] [] ? __lock_is_held+0xa1/0xf0 [ 42.316506] [] ipcomp4_init_state+0xb0/0x7d0 [ 42.322534] [] __xfrm_init_state+0x3e7/0xb30 [ 42.328565] [] xfrm_init_state+0x1a/0x20 [ 42.334263] [] pfkey_add+0x1fb9/0x3470 [ 42.339780] [] ? pfkey_delete+0x360/0x360 [ 42.345546] [] ? pfkey_seq_stop+0x80/0x80 [ 42.351321] [] ? __skb_clone+0x24a/0x7d0 [ 42.357004] [] ? pfkey_delete+0x360/0x360 [ 42.362770] [] pfkey_process+0x61e/0x730 [ 42.368456] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 42.375264] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 42.382078] [] pfkey_sendmsg+0x3a9/0x760 [ 42.387759] [] ? pfkey_spdget+0x820/0x820 [ 42.393525] [] sock_sendmsg+0xca/0x110 [ 42.399030] [] ___sys_sendmsg+0x6d1/0x7e0 [ 42.404813] [] ? copy_msghdr_from_user+0x550/0x550 [ 42.411369] [] ? __lru_cache_add+0x187/0x250 [ 42.417400] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 42.424470] [] ? _raw_spin_unlock+0x2c/0x50 [ 42.430414] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 42.437482] [] ? handle_mm_fault+0x6ee/0x2530 [ 42.443601] [] ? __fget_light+0x158/0x1e0 [ 42.449367] [] ? __fdget+0x18/0x20 [ 42.454532] [] ? sockfd_lookup_light+0x118/0x160 [ 42.460909] [] __sys_sendmsg+0xd6/0x190 [ 42.466503] [