[....] Starting enhanced syslogd: rsyslogd[ 10.564936] audit: type=1400 audit(1515840957.871:4): avc: denied { syslog } for pid=3186 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 '10.128.15.209' (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: [ 19.640215] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3341 [ 19.642248] caller is __this_cpu_preempt_check+0x1c/0x20 [ 19.643425] CPU: 1 PID: 3341 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 19.644514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.646688] ffff8801c86c7668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 19.648671] ffffffff83f44900 ffff8801cb6ab000 0000000000000003 ffff8801c86c76a8 [ 19.650939] ffffffff81dfa714 ffff8801c86c76c0 ffffffff83f44900 dffffc0000000000 [ 19.652511] Call Trace: [ 19.652869] [] dump_stack+0xc1/0x128 [ 19.653661] [] check_preemption_disabled+0x1d4/0x200 [ 19.654575] [] __this_cpu_preempt_check+0x1c/0x20 [ 19.655445] [] ipcomp_init_state+0x188/0x930 [ 19.656247] [] ? __lock_is_held+0xa1/0xf0 [ 19.657046] [] ipcomp4_init_state+0xb0/0x7d0 [ 19.657844] [] __xfrm_init_state+0x3e7/0xb30 [ 19.658642] [] xfrm_init_state+0x1a/0x20 [ 19.659395] [] pfkey_add+0x1fb9/0x3470 [ 19.660132] [] ? pfkey_delete+0x360/0x360 [ 19.664555] [] ? pfkey_seq_stop+0x80/0x80 [ 19.670317] [] ? __skb_clone+0x24a/0x7d0 [ 19.675999] [] ? pfkey_delete+0x360/0x360 [ 19.681769] [] pfkey_process+0x61e/0x730 [ 19.687444] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 19.694250] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 19.701063] [] pfkey_sendmsg+0x3a9/0x760 [ 19.706738] [] ? pfkey_spdget+0x820/0x820 [ 19.712509] [] sock_sendmsg+0xca/0x110 [ 19.718010] [] ___sys_sendmsg+0x6d1/0x7e0 [ 19.723771] [] ? copy_msghdr_from_user+0x550/0x550 [ 19.730316] [] ? __lru_cache_add+0x187/0x250 [ 19.736348] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 19.743412] [] ? _raw_spin_unlock+0x2c/0x50 [ 19.749358] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 19.756424] [] ? handle_mm_fault+0x6ee/0x2530 [ 19.763490] [] ? __fget_light+0x158/0x1e0 [ 19.769251] [] ? __fdget+0x18/0x20 [ 19.774423] [] ? sockfd_lookup_light+0x118/0x160 [ 19.780792] [] __sys_sendmsg+0xd6/0x190 executing program [ 19.786381] [] ? SyS_shutdown+0x1b0/0x1b0 [ 19.792144] [] ? __do_page_fault+0x5ec/0xd40 [ 19.798168] [] compat_SyS_sendmsg+0x2a/0x40 [ 19.804545] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 19.811104] [] do_fast_syscall_32+0x2f7/0x890 [ 19.817229] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 19.824654] [] entry_SYSENTER_compat+0x74/0x83 [ 19.833004] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3342 [ 19.841755] caller is __this_cpu_preempt_check+0x1c/0x20 [ 19.848130] CPU: 0 PID: 3342 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 19.855800] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.865120] ffff8801c86af668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 19.873243] ffffffff83f44900 ffff8801cb6ae000 0000000000000003 ffff8801c86af6a8 [ 19.881190] ffffffff81dfa714 ffff8801c86af6c0 ffffffff83f44900 dffffc0000000000 [ 19.889144] Call Trace: [ 19.891701] [] dump_stack+0xc1/0x128 [ 19.897035] [] check_preemption_disabled+0x1d4/0x200 [ 19.903754] [] __this_cpu_preempt_check+0x1c/0x20 [ 19.910230] [] ipcomp_init_state+0x188/0x930 [ 19.917658] [] ? __lock_is_held+0xa1/0xf0 [ 19.923421] [] ipcomp4_init_state+0xb0/0x7d0 [ 19.929443] [] __xfrm_init_state+0x3e7/0xb30 [ 19.935466] [] xfrm_init_state+0x1a/0x20 [ 19.941151] [] pfkey_add+0x1fb9/0x3470 [ 19.946652] [] ? pfkey_delete+0x360/0x360 [ 19.952414] [] ? pfkey_seq_stop+0x80/0x80 [ 19.958177] [] ? __skb_clone+0x24a/0x7d0 [ 19.964121] [] ? pfkey_delete+0x360/0x360 [ 19.969883] [] pfkey_process+0x61e/0x730 [ 19.975558] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 19.982373] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 19.989186] [] pfkey_sendmsg+0x3a9/0x760 [ 19.994863] [] ? pfkey_spdget+0x820/0x820 [ 20.001417] [] sock_sendmsg+0xca/0x110 [ 20.007265] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.013037] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.019581] [] ? __lru_cache_add+0x187/0x250 [ 20.025605] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.032671] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.038616] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.045680] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.051790] [] ? __fget_light+0x158/0x1e0 [ 20.057551] [] ? __fdget+0x18/0x20 [ 20.062710] [] ? sockfd_lookup_light+0x118/0x160 [ 20.069081] [] __sys_sendmsg+0xd6/0x190 [ 20.074678] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.080451] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 20.086482] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.092417] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.098962] [] do_fast_syscall_32+0x2f7/0x890 [ 20.105087] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.111719] [] entry_SYSENTER_compat+0x74/0x83 [ 20.118919] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3340 [ 20.127616] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.133104] CPU: 0 PID: 3340 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 20.140801] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.150125] ffff8801c8727668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.158073] ffffffff83f44900 ffff8801cb6a9800 0000000000000003 ffff8801c87276a8 [ 20.166059] ffffffff81dfa714 ffff8801c87276c0 ffffffff83f44900 dffffc0000000000 [ 20.174021] Call Trace: [ 20.176578] [] dump_stack+0xc1/0x128 [ 20.181917] [] check_preemption_disabled+0x1d4/0x200 [ 20.188635] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.195093] [] ipcomp_init_state+0x188/0x930 [ 20.201948] [] ? __lock_is_held+0xa1/0xf0 [ 20.207714] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.213750] [] __xfrm_init_state+0x3e7/0xb30 [ 20.219773] [] xfrm_init_state+0x1a/0x20 [ 20.225452] [] pfkey_add+0x1fb9/0x3470 [ 20.231474] [] ? pfkey_delete+0x360/0x360 [ 20.237234] [] ? pfkey_seq_stop+0x80/0x80 [ 20.242995] [] ? __skb_clone+0x24a/0x7d0 [ 20.248694] [] ? pfkey_delete+0x360/0x360 [ 20.254456] [] pfkey_process+0x61e/0x730 [ 20.260140] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.266960] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.273770] [] pfkey_sendmsg+0x3a9/0x760 [ 20.279454] [] ? pfkey_spdget+0x820/0x820 [ 20.285228] [] sock_sendmsg+0xca/0x110 [ 20.291337] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.297098] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.303643] [] ? __lru_cache_add+0x187/0x250 [ 20.309667] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.316742] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.322684] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.329940] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.336049] [] ? __fget_light+0x158/0x1e0 [ 20.341821] [] ? __fdget+0x18/0x20 [ 20.346976] [] ? sockfd_lookup_light+0x118/0x160 [ 20.353346] [] __sys_sendmsg+0xd6/0x190 [ 20.358941] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.364706] [] ? __do_page_fault+0x5ec/0xd40 [ 20.370739] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.376678] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.383223] [] do_fast_syscall_32+0x2f7/0x890 executing program [ 20.389340] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.395980] [] entry_SYSENTER_compat+0x74/0x83 [ 20.402931] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3336 [ 20.411613] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.417038] CPU: 0 PID: 3336 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 20.424715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.434038] ffff8801c8777668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.441995] ffffffff83f44900 ffff8801cac21800 0000000000000003 ffff8801c87776a8 [ 20.449958] ffffffff81dfa714 ffff8801c87776c0 ffffffff83f44900 dffffc0000000000 [ 20.458080] Call Trace: [ 20.461158] [] dump_stack+0xc1/0x128 [ 20.466487] [] check_preemption_disabled+0x1d4/0x200 [ 20.473205] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.479680] [] ipcomp_init_state+0x188/0x930 [ 20.485712] [] ? __lock_is_held+0xa1/0xf0 [ 20.491480] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.497588] [] __xfrm_init_state+0x3e7/0xb30 [ 20.503610] [] xfrm_init_state+0x1a/0x20 [ 20.509288] [] pfkey_add+0x1fb9/0x3470 [ 20.514799] [] ? pfkey_delete+0x360/0x360 [ 20.520574] [] ? pfkey_seq_stop+0x80/0x80 [ 20.526346] [] ? __skb_clone+0x24a/0x7d0 [ 20.532030] [] ? pfkey_delete+0x360/0x360 [ 20.537793] [] pfkey_process+0x61e/0x730 [ 20.543469] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.550274] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.557088] [] pfkey_sendmsg+0x3a9/0x760 [ 20.562771] [] ? pfkey_spdget+0x820/0x820 [ 20.568535] [] sock_sendmsg+0xca/0x110 [ 20.574045] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.579817] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.586363] [] ? __lru_cache_add+0x187/0x250 [ 20.592394] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.599545] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.605482] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.612548] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.618661] [] ? __fget_light+0x158/0x1e0 [ 20.624423] [] ? __fdget+0x18/0x20 [ 20.629585] [] ? sockfd_lookup_light+0x118/0x160 [ 20.635955] [] __sys_sendmsg+0xd6/0x190 executing program [ 20.641553] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.647578] [] ? __do_page_fault+0x5ec/0xd40 [ 20.653617] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.659552] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.666096] [] do_fast_syscall_32+0x2f7/0x890 [ 20.673099] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.679779] [] entry_SYSENTER_compat+0x74/0x83 [ 20.686532] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3337 [ 20.695206] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.700656] CPU: 0 PID: 3337 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 20.708330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.717666] ffff8801c876f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.725622] ffffffff83f44900 ffff8801cac24800 0000000000000003 ffff8801c876f6a8 [ 20.733583] ffffffff81dfa714 ffff8801c876f6c0 ffffffff83f44900 dffffc0000000000 [ 20.741546] Call Trace: [ 20.744098] [] dump_stack+0xc1/0x128 [ 20.749427] [] check_preemption_disabled+0x1d4/0x200 [ 20.756146] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.762604] [] ipcomp_init_state+0x188/0x930 [ 20.768627] [] ? __lock_is_held+0xa1/0xf0 [ 20.774389] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.780411] [] __xfrm_init_state+0x3e7/0xb30 [ 20.786433] [] xfrm_init_state+0x1a/0x20 [ 20.792120] [] pfkey_add+0x1fb9/0x3470 [ 20.797622] [] ? pfkey_delete+0x360/0x360 [ 20.803395] [] ? pfkey_seq_stop+0x80/0x80 [ 20.809168] [] ? __skb_clone+0x24a/0x7d0 [ 20.814843] [] ? pfkey_delete+0x360/0x360 [ 20.820619] [] pfkey_process+0x61e/0x730 [ 20.826644] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.833450] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.840253] [] pfkey_sendmsg+0x3a9/0x760 [ 20.845929] [] ? pfkey_spdget+0x820/0x820 [ 20.851703] [] sock_sendmsg+0xca/0x110 [ 20.857204] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.862967] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.869513] [] ? __lru_cache_add+0x187/0x250 [ 20.875548] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.882613] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.888549] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.895622] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.901741] [] ? __fget_light+0x158/0x1e0 [ 20.907513] [] ? __fdget+0x18/0x20 [ 20.912678] [] ? sockfd_lookup_light+0x118/0x160 [ 20.919047] [] __sys_sendmsg+0xd6/0x190 [ 20.924635] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.930409] [] ? __do_page_fault+0x5ec/0xd40 [ 20.936434] [] compat_SyS_sendmsg+0x2a/0x40 executing program [ 20.942374] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.948918] [] do_fast_syscall_32+0x2f7/0x890 [ 20.955036] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.961667] [] entry_SYSENTER_compat+0x74/0x83 [ 20.968370] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3339 [ 20.977038] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.982514] CPU: 0 PID: 3339 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 20.990189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.999512] ffff8801c8737668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.007475] ffffffff83f44900 ffff8801cb6ac800 0000000000000003 ffff8801c87376a8 [ 21.015424] ffffffff81dfa714 ffff8801c87376c0 ffffffff83f44900 dffffc0000000000 [ 21.023392] Call Trace: [ 21.025954] [] dump_stack+0xc1/0x128 [ 21.031284] [] check_preemption_disabled+0x1d4/0x200 [ 21.038010] [] __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.044471] [] ipcomp_init_state+0x188/0x930 [ 21.050497] [] ? __lock_is_held+0xa1/0xf0 [ 21.056269] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.062291] [] __xfrm_init_state+0x3e7/0xb30 [ 21.068312] [] xfrm_init_state+0x1a/0x20 [ 21.073989] [] pfkey_add+0x1fb9/0x3470 [ 21.079493] [] ? pfkey_delete+0x360/0x360 [ 21.085269] [] ? pfkey_seq_stop+0x80/0x80 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085274] [] ? __skb_clone+0x24a/0x7d0 [ 21.085278] [] ? pfkey_delete+0x360/0x360 [ 21.085281] [] pfkey_process+0x61e/0x730 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085285] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085290] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.085294] [] pfkey_sendmsg+0x3a9/0x760 [ 21.085303] [] ? pfkey_spdget+0x820/0x820 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085308] [] sock_sendmsg+0xca/0x110 [ 21.085312] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.085316] [] ? copy_msghdr_from_user+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085323] [] ? __lru_cache_add+0x187/0x250 [ 21.085328] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085334] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.085338] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085344] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.085349] [] ? __fget_light+0x158/0x1e0 [ 21.085352] [] ? __fdget+0x18/0x20 [ 21.085356] [] ? sockfd_lookup_light+0x118/0x160 [ 21.085360] [] __sys_sendmsg+0xd6/0x190 [ 21.085363] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085368] [] ? __do_page_fault+0x5ec/0xd40 [ 21.085374] [] compat_SyS_sendmsg+0x2a/0x40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.085378] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.085383] [] do_fast_syscall_32+0x2f7/0x890 [ 21.085386] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.085390] [] 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 [ 21.087195] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3338 [ 21.087203] caller is __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087207] CPU: 0 PID: 3338 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.087216] ffff8801c875f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.087221] ffffffff83f44900 ffff8801cac20000 0000000000000003 ffff8801c875f6a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087226] ffffffff81dfa714 ffff8801c875f6c0 ffffffff83f44900 dffffc0000000000 [ 21.087227] Call Trace: [ 21.087233] [] dump_stack+0xc1/0x128 [ 21.087238] [] check_preemption_disabled+0x1d4/0x200 [ 21.087242] [] __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087248] [] ipcomp_init_state+0x188/0x930 [ 21.087253] [] ? __lock_is_held+0xa1/0xf0 [ 21.087257] [] ipcomp4_init_state+0xb0/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087261] [] __xfrm_init_state+0x3e7/0xb30 [ 21.087264] [] xfrm_init_state+0x1a/0x20 [ 21.087269] [] pfkey_add+0x1fb9/0x3470 [ 21.087273] [] ? pfkey_delete+0x360/0x360 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087276] [] ? pfkey_seq_stop+0x80/0x80 [ 21.087281] [] ? __skb_clone+0x24a/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087284] [] ? pfkey_delete+0x360/0x360 [ 21.087287] [] pfkey_process+0x61e/0x730 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087291] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.087296] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.087300] [] pfkey_sendmsg+0x3a9/0x760 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087303] [] ? pfkey_spdget+0x820/0x820 [ 21.087308] [] sock_sendmsg+0xca/0x110 [ 21.087312] [] ___sys_sendmsg+0x6d1/0x7e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087316] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.087321] [] ? __lru_cache_add+0x187/0x250 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087327] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.087333] [] ? _raw_spin_unlock+0x2c/0x50 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087337] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.087342] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.087348] [] ? __fget_light+0x158/0x1e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087352] [] ? __fdget+0x18/0x20 [ 21.087358] [] ? sockfd_lookup_light+0x118/0x160 [ 21.087361] [] __sys_sendmsg+0xd6/0x190 [ 21.087365] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087369] [] ? __do_page_fault+0x5ec/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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087374] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.087378] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.087382] [] do_fast_syscall_32+0x2f7/0x890 [ 21.087386] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.087390] [] 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 [ 21.089166] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3338 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089173] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.089177] CPU: 0 PID: 3338 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 21.089179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089185] ffff8801c875f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089190] ffffffff83f44900 ffff8801cac20000 0000000000000003 ffff8801c875f6a8 [ 21.089195] ffffffff81dfa714 ffff8801c875f6c0 ffffffff83f44900 dffffc0000000000 [ 21.089195] Call Trace: executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089200] [] dump_stack+0xc1/0x128 [ 21.089205] [] check_preemption_disabled+0x1d4/0x200 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089209] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.089214] [] ipcomp_init_state+0x188/0x930 [ 21.089218] [] ? __lock_is_held+0xa1/0xf0 [ 21.089222] [] ipcomp4_init_state+0xb0/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089226] [] __xfrm_init_state+0x3e7/0xb30 [ 21.089229] [] xfrm_init_state+0x1a/0x20 [ 21.089233] [] pfkey_add+0x1fb9/0x3470 [ 21.089237] [] ? pfkey_delete+0x360/0x360 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089240] [] ? pfkey_seq_stop+0x80/0x80 [ 21.089244] [] ? __skb_clone+0x24a/0x7d0 [ 21.089247] [] ? pfkey_delete+0x360/0x360 [ 21.089251] [] pfkey_process+0x61e/0x730 [ 21.089254] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089259] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.089262] [] pfkey_sendmsg+0x3a9/0x760 [ 21.089266] [] ? pfkey_spdget+0x820/0x820 [ 21.089270] [] sock_sendmsg+0xca/0x110 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089274] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.089278] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.089283] [] ? __lru_cache_add+0x187/0x250 [ 21.089288] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089294] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.089298] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.089302] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.089306] [] ? __fget_light+0x158/0x1e0 [ 21.089309] [] ? __fdget+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089313] [] ? sockfd_lookup_light+0x118/0x160 [ 21.089316] [] __sys_sendmsg+0xd6/0x190 [ 21.089320] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.089325] [] ? __do_page_fault+0x5ec/0xd40 [ 21.089330] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.089334] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.089338] [] do_fast_syscall_32+0x2f7/0x890 [ 21.089342] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.089346] [] 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 [ 21.090436] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 [ 21.090442] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.090445] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090447] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090453] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.090458] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 [ 21.090463] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 [ 21.090464] Call Trace: [ 21.090469] [] dump_stack+0xc1/0x128 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090473] [] check_preemption_disabled+0x1d4/0x200 [ 21.090477] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.090482] [] ipcomp_init_state+0x188/0x930 [ 21.090486] [] ? __lock_is_held+0xa1/0xf0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090490] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.090493] [] __xfrm_init_state+0x3e7/0xb30 [ 21.090497] [] xfrm_init_state+0x1a/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090500] [] pfkey_add+0x1fb9/0x3470 [ 21.090504] [] ? pfkey_delete+0x360/0x360 [ 21.090507] [] ? pfkey_seq_stop+0x80/0x80 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090511] [] ? __skb_clone+0x24a/0x7d0 [ 21.090514] [] ? pfkey_delete+0x360/0x360 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090517] [] pfkey_process+0x61e/0x730 [ 21.090521] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090526] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.090530] [] pfkey_sendmsg+0x3a9/0x760 [ 21.090533] [] ? pfkey_spdget+0x820/0x820 [ 21.090538] [] sock_sendmsg+0xca/0x110 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090541] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.090546] [] ? copy_msghdr_from_user+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090551] [] ? __lru_cache_add+0x187/0x250 [ 21.090556] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.090561] [] ? _raw_spin_unlock+0x2c/0x50 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090566] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.090569] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.090573] [] ? __fget_light+0x158/0x1e0 [ 21.090576] [] ? __fdget+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090580] [] ? sockfd_lookup_light+0x118/0x160 [ 21.090583] [] __sys_sendmsg+0xd6/0x190 [ 21.090586] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090591] [] ? __do_page_fault+0x5ec/0xd40 [ 21.090595] [] compat_SyS_sendmsg+0x2a/0x40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090599] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.090603] [] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.090607] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.090611] [] 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 [ 21.092319] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 [ 21.092324] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.092327] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.092336] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.092341] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 [ 21.092345] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 [ 21.092346] Call Trace: [ 21.092350] [] dump_stack+0xc1/0x128 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092355] [] check_preemption_disabled+0x1d4/0x200 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092359] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.092363] [] ipcomp_init_state+0x188/0x930 [ 21.092367] [] ? __lock_is_held+0xa1/0xf0 [ 21.092371] [] ipcomp4_init_state+0xb0/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092375] [] __xfrm_init_state+0x3e7/0xb30 [ 21.092378] [] xfrm_init_state+0x1a/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092381] [] pfkey_add+0x1fb9/0x3470 [ 21.092385] [] ? pfkey_delete+0x360/0x360 [ 21.092388] [] ? pfkey_seq_stop+0x80/0x80 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092392] [] ? __skb_clone+0x24a/0x7d0 [ 21.092395] [] ? pfkey_delete+0x360/0x360 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092399] [] pfkey_process+0x61e/0x730 [ 21.092402] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.092407] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.092411] [] pfkey_sendmsg+0x3a9/0x760 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092414] [] ? pfkey_spdget+0x820/0x820 [ 21.092418] [] sock_sendmsg+0xca/0x110 [ 21.092422] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.092426] [] ? copy_msghdr_from_user+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092431] [] ? __lru_cache_add+0x187/0x250 [ 21.092435] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.092440] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.092444] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092447] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.092451] [] ? __fget_light+0x158/0x1e0 [ 21.092454] [] ? __fdget+0x18/0x20 [ 21.092458] [] ? sockfd_lookup_light+0x118/0x160 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092461] [] __sys_sendmsg+0xd6/0x190 [ 21.092464] [] ? SyS_shutdown+0x1b0/0x1b0 [ 21.092469] [] ? __do_page_fault+0x5ec/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 [ 21.092473] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.092477] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.092481] [] do_fast_syscall_32+0x2f7/0x890 [ 21.092484] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.092488] [] entry_SYSENTER_compat+0x74/0x83 [ 24.650420] check_preemption_disabled: 2868 callbacks suppressed [ 24.650426] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 [ 24.650438] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.650445] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.650460] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650467] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650475] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 [ 24.650477] Call Trace: [ 24.650487] [] dump_stack+0xc1/0x128 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650493] [] check_preemption_disabled+0x1d4/0x200 [ 24.650499] [] __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650507] [] ipcomp_init_state+0x188/0x930 [ 24.650515] [] ? __lock_is_held+0xa1/0xf0 [ 24.650522] [] ipcomp4_init_state+0xb0/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650528] [] __xfrm_init_state+0x3e7/0xb30 [ 24.650534] [] xfrm_init_state+0x1a/0x20 [ 24.650541] [] pfkey_add+0x1fb9/0x3470 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650547] [] ? pfkey_delete+0x360/0x360 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650552] [] ? pfkey_seq_stop+0x80/0x80 [ 24.650559] [] ? __skb_clone+0x24a/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650564] [] ? pfkey_delete+0x360/0x360 [ 24.650569] [] pfkey_process+0x61e/0x730 [ 24.650575] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650583] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.650590] [] pfkey_sendmsg+0x3a9/0x760 [ 24.650596] [] ? pfkey_spdget+0x820/0x820 [ 24.650603] [] sock_sendmsg+0xca/0x110 [ 24.650609] [] ___sys_sendmsg+0x6d1/0x7e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650615] [] ? copy_msghdr_from_user+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650622] [] ? __lru_cache_add+0x187/0x250 [ 24.650630] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650639] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.650645] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.650652] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.650658] [] ? __fget_light+0x158/0x1e0 [ 24.650664] [] ? __fdget+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650671] [] ? sockfd_lookup_light+0x118/0x160 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650677] [] __sys_sendmsg+0xd6/0x190 [ 24.650683] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.650692] [] ? __do_page_fault+0x5ec/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 [ 24.650700] [] compat_SyS_sendmsg+0x2a/0x40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.650706] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 24.650713] [] do_fast_syscall_32+0x2f7/0x890 [ 24.650719] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.650725] [] 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 [ 24.653541] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 [ 24.653553] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.653560] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 24.653563] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.653574] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653583] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 [ 24.653591] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 [ 24.653592] Call Trace: [ 24.653602] [] dump_stack+0xc1/0x128 [ 24.653609] [] check_preemption_disabled+0x1d4/0x200 [ 24.653617] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.653626] [] ipcomp_init_state+0x188/0x930 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653635] [] ? __lock_is_held+0xa1/0xf0 [ 24.653643] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.653649] [] __xfrm_init_state+0x3e7/0xb30 [ 24.653655] [] xfrm_init_state+0x1a/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653663] [] pfkey_add+0x1fb9/0x3470 [ 24.653669] [] ? pfkey_delete+0x360/0x360 [ 24.653675] [] ? pfkey_seq_stop+0x80/0x80 [ 24.653683] [] ? __skb_clone+0x24a/0x7d0 [ 24.653689] [] ? pfkey_delete+0x360/0x360 [ 24.653695] [] pfkey_process+0x61e/0x730 [ 24.653702] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653709] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.653716] [] pfkey_sendmsg+0x3a9/0x760 [ 24.653722] [] ? pfkey_spdget+0x820/0x820 [ 24.653732] [] sock_sendmsg+0xca/0x110 [ 24.653741] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.653749] [] ? copy_msghdr_from_user+0x550/0x550 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653758] [] ? __lru_cache_add+0x187/0x250 [ 24.653766] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 24.653774] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.653782] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.653788] [] ? handle_mm_fault+0x6ee/0x2530 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653795] [] ? __fget_light+0x158/0x1e0 [ 24.653800] [] ? __fdget+0x18/0x20 [ 24.653807] [] ? sockfd_lookup_light+0x118/0x160 [ 24.653813] [] __sys_sendmsg+0xd6/0x190 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653819] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.653826] [] ? __do_page_fault+0x5ec/0xd40 [ 24.653835] [] compat_SyS_sendmsg+0x2a/0x40 [ 24.653842] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653849] [] do_fast_syscall_32+0x2f7/0x890 [ 24.653855] [] ? trace_hardirqs_off_thunk+0x1a/0x1c executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.653862] [] entry_SYSENTER_compat+0x74/0x83 [ 24.655027] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3338 [ 24.655037] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.655042] CPU: 1 PID: 3338 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.655053] ffff8801c875f668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 24.655060] ffffffff83f44900 ffff8801cac20000 0000000000000003 ffff8801c875f6a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655067] ffffffff81dfa714 ffff8801c875f6c0 ffffffff83f44900 dffffc0000000000 [ 24.655068] Call Trace: [ 24.655076] [] dump_stack+0xc1/0x128 [ 24.655083] [] check_preemption_disabled+0x1d4/0x200 [ 24.655089] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.655096] [] ipcomp_init_state+0x188/0x930 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655104] [] ? __lock_is_held+0xa1/0xf0 [ 24.655109] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.655115] [] __xfrm_init_state+0x3e7/0xb30 [ 24.655120] [] xfrm_init_state+0x1a/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655126] [] pfkey_add+0x1fb9/0x3470 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655131] [] ? pfkey_delete+0x360/0x360 [ 24.655136] [] ? pfkey_seq_stop+0x80/0x80 [ 24.655143] [] ? __skb_clone+0x24a/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655149] [] ? pfkey_delete+0x360/0x360 [ 24.655153] [] pfkey_process+0x61e/0x730 [ 24.655159] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 24.655166] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655171] [] pfkey_sendmsg+0x3a9/0x760 [ 24.655176] [] ? pfkey_spdget+0x820/0x820 [ 24.655184] [] sock_sendmsg+0xca/0x110 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655190] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.655196] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.655203] [] ? __lru_cache_add+0x187/0x250 [ 24.655211] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 24.655218] [] ? _raw_spin_unlock+0x2c/0x50 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655224] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.655229] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.655235] [] ? __fget_light+0x158/0x1e0 [ 24.655239] [] ? __fdget+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.655245] [] ? sockfd_lookup_light+0x118/0x160 [ 24.655251] [] __sys_sendmsg+0xd6/0x190 [ 24.655256] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.655263] [] ? __do_page_fault+0x5ec/0xd40 [ 24.655270] [] compat_SyS_sendmsg+0x2a/0x40 [ 24.655276] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 24.655282] [] 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 [ 24.655287] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.655293] [] entry_SYSENTER_compat+0x74/0x83 [ 24.656014] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 [ 24.656022] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.656027] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.656038] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656045] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 [ 24.656051] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656053] Call Trace: [ 24.656060] [] dump_stack+0xc1/0x128 [ 24.656067] [] check_preemption_disabled+0x1d4/0x200 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656074] [] __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656081] [] ipcomp_init_state+0x188/0x930 [ 24.656088] [] ? __lock_is_held+0xa1/0xf0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656095] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.656100] [] __xfrm_init_state+0x3e7/0xb30 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656105] [] xfrm_init_state+0x1a/0x20 [ 24.656111] [] pfkey_add+0x1fb9/0x3470 [ 24.656117] [] ? pfkey_delete+0x360/0x360 [ 24.656122] [] ? pfkey_seq_stop+0x80/0x80 [ 24.656128] [] ? __skb_clone+0x24a/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656134] [] ? pfkey_delete+0x360/0x360 [ 24.656139] [] pfkey_process+0x61e/0x730 [ 24.656144] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 24.656152] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.656158] [] pfkey_sendmsg+0x3a9/0x760 [ 24.656163] [] ? pfkey_spdget+0x820/0x820 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656169] [] sock_sendmsg+0xca/0x110 [ 24.656176] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.656183] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.656192] [] ? __lru_cache_add+0x187/0x250 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656200] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656208] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.656216] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 24.656222] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.656227] [] ? __fget_light+0x158/0x1e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656232] [] ? __fdget+0x18/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656239] [] ? sockfd_lookup_light+0x118/0x160 [ 24.656245] [] __sys_sendmsg+0xd6/0x190 [ 24.656249] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.656257] [] ? __do_page_fault+0x5ec/0xd40 [ 24.656264] [] compat_SyS_sendmsg+0x2a/0x40 [ 24.656271] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 24.656277] [] 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 [ 24.656282] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.656289] [] entry_SYSENTER_compat+0x74/0x83 [ 24.657383] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3341 [ 24.657390] caller is __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657395] CPU: 1 PID: 3341 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.657406] ffff8801c86c7668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 24.657413] ffffffff83f44900 ffff8801cb6ab000 0000000000000003 ffff8801c86c76a8 [ 24.657420] ffffffff81dfa714 ffff8801c86c76c0 ffffffff83f44900 dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657421] Call Trace: [ 24.657428] [] dump_stack+0xc1/0x128 [ 24.657434] [] check_preemption_disabled+0x1d4/0x200 [ 24.657441] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.657448] [] ipcomp_init_state+0x188/0x930 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657454] [] ? __lock_is_held+0xa1/0xf0 [ 24.657460] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.657465] [] __xfrm_init_state+0x3e7/0xb30 [ 24.657470] [] xfrm_init_state+0x1a/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657476] [] pfkey_add+0x1fb9/0x3470 [ 24.657481] [] ? pfkey_delete+0x360/0x360 [ 24.657486] [] ? pfkey_seq_stop+0x80/0x80 [ 24.657492] [] ? __skb_clone+0x24a/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657497] [] ? pfkey_delete+0x360/0x360 [ 24.657502] [] pfkey_process+0x61e/0x730 [ 24.657508] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657514] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.657520] [] pfkey_sendmsg+0x3a9/0x760 [ 24.657525] [] ? pfkey_spdget+0x820/0x820 [ 24.657531] [] sock_sendmsg+0xca/0x110 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657537] [] ___sys_sendmsg+0x6d1/0x7e0 [ 24.657544] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.657551] [] ? __lru_cache_add+0x187/0x250 [ 24.657557] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657564] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.657570] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657576] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.657580] [] ? __fget_light+0x158/0x1e0 [ 24.657585] [] ? __fdget+0x18/0x20 [ 24.657591] [] ? sockfd_lookup_light+0x118/0x160 [ 24.657596] [] __sys_sendmsg+0xd6/0x190 [ 24.657601] [] ? SyS_shutdown+0x1b0/0x1b0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.657607] [] ? __do_page_fault+0x5ec/0xd40 [ 24.657614] [] compat_SyS_sendmsg+0x2a/0x40 [ 24.657620] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 24.657625] [] 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 executing program executing program executing program executing program executing program executing program executing program [ 24.657630] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.657636] [] entry_SYSENTER_compat+0x74/0x83 [ 24.658327] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3335 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658334] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.658339] CPU: 0 PID: 3335 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 24.658342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.658359] ffff8801c878f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 24.658367] ffffffff83f44900 ffff8801cac26000 0000000000000003 ffff8801c878f6a8 [ 24.658375] ffffffff81dfa714 ffff8801c878f6c0 ffffffff83f44900 dffffc0000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658376] Call Trace: [ 24.658383] [] dump_stack+0xc1/0x128 [ 24.658390] [] check_preemption_disabled+0x1d4/0x200 [ 24.658397] [] __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658403] [] ipcomp_init_state+0x188/0x930 [ 24.658410] [] ? __lock_is_held+0xa1/0xf0 [ 24.658416] [] ipcomp4_init_state+0xb0/0x7d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658421] [] __xfrm_init_state+0x3e7/0xb30 [ 24.658427] [] xfrm_init_state+0x1a/0x20 [ 24.658433] [] pfkey_add+0x1fb9/0x3470 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658439] [] ? pfkey_delete+0x360/0x360 [ 24.658444] [] ? pfkey_seq_stop+0x80/0x80 [ 24.658452] [] ? __skb_clone+0x24a/0x7d0 [ 24.658458] [] ? pfkey_delete+0x360/0x360 [ 24.658464] [] pfkey_process+0x61e/0x730 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658472] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 24.658480] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 24.658487] [] pfkey_sendmsg+0x3a9/0x760 [ 24.658492] [] ? pfkey_spdget+0x820/0x820 [ 24.658498] [] sock_sendmsg+0xca/0x110 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658505] [] ___sys_sendmsg+0x6d1/0x7e0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658512] [] ? copy_msghdr_from_user+0x550/0x550 [ 24.658520] [] ? __lru_cache_add+0x187/0x250 [ 24.658527] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 24.658535] [] ? _raw_spin_unlock+0x2c/0x50 [ 24.658542] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658548] [] ? handle_mm_fault+0x6ee/0x2530 [ 24.658553] [] ? __fget_light+0x158/0x1e0 [ 24.658558] [] ? __fdget+0x18/0x20 [ 24.658565] [] ? sockfd_lookup_light+0x118/0x160 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658571] [] __sys_sendmsg+0xd6/0x190 [ 24.658577] [] ? SyS_shutdown+0x1b0/0x1b0 [ 24.658585] [] ? __do_page_fault+0x5ec/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 [ 24.658592] [] compat_SyS_sendmsg+0x2a/0x40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.658599] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 24.658605] [] do_fast_syscall_32+0x2f7/0x890 [ 24.658611] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.658617] [] 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 [ 24.659244] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller169248/3339 [ 24.659251] caller is __this_cpu_preempt_check+0x1c/0x20 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.659257] CPU: 1 PID: 3339 Comm: syzkaller169248 Not tainted 4.9.76-g8e170a5 #21 [ 24.659260] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.659270] ffff8801c8737668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 24.659279] ffffffff83f44900 ffff8801cb6ac800 0000000000000003 ffff8801c87376a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.659288] ffffffff81dfa714 ffff8801c87376c0 ffffffff83f44900 dffffc0000000000 [ 24.659290] Call Trace: [ 24.659297] [] dump_stack+0xc1/0x128 [ 24.659305] [] check_preemption_disabled+0x1d4/0x200 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.659313] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.659320] [] ipcomp_init_state+0x188/0x930 [ 24.659327] [] ? __lock_is_held+0xa1/0xf0 executing program executing program executing program executing program executing program executing program executing program