[....] Starting enhanced syslogd: rsyslogd[ 11.075265] audit: type=1400 audit(1515954649.987:4): avc: denied { syslog } for pid=3177 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.206' (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: [ 19.837616] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3334 [ 19.846425] caller is __this_cpu_preempt_check+0x1c/0x20 [ 19.851867] CPU: 1 PID: 3334 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 19.859548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.868882] ffff8801cd6ff668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 19.876851] ffffffff83f44900 ffff8801cccfb000 0000000000000003 ffff8801cd6ff6a8 [ 19.884817] ffffffff81dfa714 ffff8801cd6ff6c0 ffffffff83f44900 dffffc0000000000 [ 19.893399] Call Trace: [ 19.895960] [] dump_stack+0xc1/0x128 [ 19.901303] [] check_preemption_disabled+0x1d4/0x200 [ 19.908029] [] __this_cpu_preempt_check+0x1c/0x20 [ 19.914493] [] ipcomp_init_state+0x188/0x930 [ 19.920522] [] ? __lock_is_held+0xa1/0xf0 [ 19.926291] [] ipcomp4_init_state+0xb0/0x7d0 [ 19.932318] [] __xfrm_init_state+0x3e7/0xb30 [ 19.938342] [] xfrm_init_state+0x1a/0x20 [ 19.944041] [] pfkey_add+0x1fb9/0x3470 [ 19.949552] [] ? pfkey_delete+0x360/0x360 [ 19.955344] [] ? pfkey_seq_stop+0x80/0x80 [ 19.961115] [] ? __skb_clone+0x24a/0x7d0 [ 19.966798] [] ? pfkey_delete+0x360/0x360 [ 19.972567] [] pfkey_process+0x61e/0x730 [ 19.978249] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 19.985069] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 19.991896] [] pfkey_sendmsg+0x3a9/0x760 [ 19.997580] [] ? pfkey_spdget+0x820/0x820 [ 20.003347] [] sock_sendmsg+0xca/0x110 [ 20.008854] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.014620] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.021183] [] ? __lru_cache_add+0x187/0x250 [ 20.027219] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.034300] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.040241] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.047311] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.053427] [] ? __fget_light+0x158/0x1e0 [ 20.059195] [] ? __fdget+0x18/0x20 [ 20.064355] [] ? sockfd_lookup_light+0x118/0x160 [ 20.070732] [] __sys_sendmsg+0xd6/0x190 [ 20.076327] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.082096] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 20.088125] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.094065] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.100622] [] do_fast_syscall_32+0x2f7/0x890 [ 20.106735] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.113374] [] entry_SYSENTER_compat+0x74/0x83 [ 20.121316] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3331 [ 20.130045] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.135491] CPU: 0 PID: 3331 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 20.143175] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.152500] ffff8801cd157668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.160479] ffffffff83f44900 ffff8801cb7b3000 0000000000000003 ffff8801cd1576a8 [ 20.168450] ffffffff81dfa714 ffff8801cd1576c0 ffffffff83f44900 dffffc0000000000 [ 20.176413] Call Trace: [ 20.178974] [] dump_stack+0xc1/0x128 [ 20.184306] [] check_preemption_disabled+0x1d4/0x200 [ 20.191030] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.197493] [] ipcomp_init_state+0x188/0x930 [ 20.203520] [] ? __lock_is_held+0xa1/0xf0 [ 20.209288] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.215314] [] __xfrm_init_state+0x3e7/0xb30 [ 20.221341] [] xfrm_init_state+0x1a/0x20 [ 20.227024] [] pfkey_add+0x1fb9/0x3470 [ 20.232529] [] ? pfkey_delete+0x360/0x360 [ 20.238322] [] ? pfkey_seq_stop+0x80/0x80 [ 20.244090] [] ? __skb_clone+0x24a/0x7d0 [ 20.249771] [] ? pfkey_delete+0x360/0x360 [ 20.255538] [] pfkey_process+0x61e/0x730 [ 20.261219] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.268029] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.274835] [] pfkey_sendmsg+0x3a9/0x760 [ 20.280515] [] ? pfkey_spdget+0x820/0x820 [ 20.286285] [] sock_sendmsg+0xca/0x110 [ 20.291789] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.297561] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.304110] [] ? __lru_cache_add+0x187/0x250 [ 20.310138] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.317211] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.323151] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.330221] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.336344] [] ? __fget_light+0x158/0x1e0 [ 20.342109] [] ? __fdget+0x18/0x20 [ 20.347277] [] ? sockfd_lookup_light+0x118/0x160 [ 20.353650] [] __sys_sendmsg+0xd6/0x190 [ 20.359244] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.365012] [] ? __do_page_fault+0x5ec/0xd40 [ 20.371039] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.376987] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.383542] [] do_fast_syscall_32+0x2f7/0x890 executing program [ 20.389656] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.396292] [] entry_SYSENTER_compat+0x74/0x83 [ 20.403265] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3333 [ 20.411967] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.417422] CPU: 0 PID: 3333 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 20.425107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.434434] ffff8801cd787668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.442417] ffffffff83f44900 ffff8801cccf9800 0000000000000003 ffff8801cd7876a8 [ 20.450385] ffffffff81dfa714 ffff8801cd7876c0 ffffffff83f44900 dffffc0000000000 [ 20.458347] Call Trace: [ 20.460907] [] dump_stack+0xc1/0x128 [ 20.466243] [] check_preemption_disabled+0x1d4/0x200 [ 20.472973] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.479438] [] ipcomp_init_state+0x188/0x930 [ 20.485482] [] ? __lock_is_held+0xa1/0xf0 [ 20.491255] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.497285] [] __xfrm_init_state+0x3e7/0xb30 [ 20.503320] [] xfrm_init_state+0x1a/0x20 [ 20.509009] [] pfkey_add+0x1fb9/0x3470 [ 20.514522] [] ? pfkey_delete+0x360/0x360 [ 20.520290] [] ? pfkey_seq_stop+0x80/0x80 [ 20.526067] [] ? __skb_clone+0x24a/0x7d0 [ 20.531749] [] ? pfkey_delete+0x360/0x360 [ 20.537515] [] pfkey_process+0x61e/0x730 [ 20.543194] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.550006] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.556827] [] pfkey_sendmsg+0x3a9/0x760 [ 20.562508] [] ? pfkey_spdget+0x820/0x820 [ 20.568278] [] sock_sendmsg+0xca/0x110 [ 20.573788] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.579557] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.586108] [] ? __lru_cache_add+0x187/0x250 [ 20.592136] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.599206] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.605155] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.612226] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.618340] [] ? __fget_light+0x158/0x1e0 [ 20.624103] [] ? __fdget+0x18/0x20 [ 20.629262] [] ? sockfd_lookup_light+0x118/0x160 [ 20.635636] [] __sys_sendmsg+0xd6/0x190 executing program [ 20.641228] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.647010] [] ? __do_page_fault+0x5ec/0xd40 [ 20.653044] [] compat_SyS_sendmsg+0x2a/0x40 [ 20.658984] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.665536] [] do_fast_syscall_32+0x2f7/0x890 [ 20.671651] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.678300] [] entry_SYSENTER_compat+0x74/0x83 [ 20.685240] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3330 [ 20.693940] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.699391] CPU: 0 PID: 3330 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 20.707074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.716398] ffff8801ca9e7668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 20.724372] ffffffff83f44900 ffff8801cb7b0000 0000000000000003 ffff8801ca9e76a8 [ 20.732351] ffffffff81dfa714 ffff8801ca9e76c0 ffffffff83f44900 dffffc0000000000 [ 20.740316] Call Trace: [ 20.742875] [] dump_stack+0xc1/0x128 [ 20.748217] [] check_preemption_disabled+0x1d4/0x200 [ 20.754939] [] __this_cpu_preempt_check+0x1c/0x20 [ 20.761401] [] ipcomp_init_state+0x188/0x930 [ 20.767434] [] ? __lock_is_held+0xa1/0xf0 [ 20.773206] [] ipcomp4_init_state+0xb0/0x7d0 [ 20.779234] [] __xfrm_init_state+0x3e7/0xb30 [ 20.785261] [] xfrm_init_state+0x1a/0x20 [ 20.790942] [] pfkey_add+0x1fb9/0x3470 [ 20.796446] [] ? pfkey_delete+0x360/0x360 [ 20.802210] [] ? pfkey_seq_stop+0x80/0x80 [ 20.807975] [] ? __skb_clone+0x24a/0x7d0 [ 20.813666] [] ? pfkey_delete+0x360/0x360 [ 20.819431] [] pfkey_process+0x61e/0x730 [ 20.825108] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 20.831918] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 20.838724] [] pfkey_sendmsg+0x3a9/0x760 [ 20.844400] [] ? pfkey_spdget+0x820/0x820 [ 20.850174] [] sock_sendmsg+0xca/0x110 [ 20.855680] [] ___sys_sendmsg+0x6d1/0x7e0 [ 20.861446] [] ? copy_msghdr_from_user+0x550/0x550 [ 20.867997] [] ? __lru_cache_add+0x187/0x250 [ 20.874026] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 20.881095] [] ? _raw_spin_unlock+0x2c/0x50 [ 20.887042] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 20.894111] [] ? handle_mm_fault+0x6ee/0x2530 [ 20.900223] [] ? __fget_light+0x158/0x1e0 [ 20.905988] [] ? __fdget+0x18/0x20 [ 20.911146] [] ? sockfd_lookup_light+0x118/0x160 [ 20.917518] [] __sys_sendmsg+0xd6/0x190 [ 20.923109] [] ? SyS_shutdown+0x1b0/0x1b0 [ 20.928882] [] ? __do_page_fault+0x5ec/0xd40 [ 20.934915] [] compat_SyS_sendmsg+0x2a/0x40 executing program [ 20.940855] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 20.947441] [] do_fast_syscall_32+0x2f7/0x890 [ 20.953650] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 20.960552] [] entry_SYSENTER_compat+0x74/0x83 [ 20.967426] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3329 [ 20.976144] caller is __this_cpu_preempt_check+0x1c/0x20 [ 20.981574] CPU: 0 PID: 3329 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 20.989351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.998684] ffff8801ccd0f668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.006656] ffffffff83f44900 ffff8801cb7b4800 0000000000000003 ffff8801ccd0f6a8 [ 21.014617] ffffffff81dfa714 ffff8801ccd0f6c0 ffffffff83f44900 dffffc0000000000 [ 21.022591] Call Trace: [ 21.025152] [] dump_stack+0xc1/0x128 [ 21.030486] [] check_preemption_disabled+0x1d4/0x200 [ 21.037210] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.043676] [] ipcomp_init_state+0x188/0x930 [ 21.049704] [] ? __lock_is_held+0xa1/0xf0 [ 21.055471] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.061500] [] __xfrm_init_state+0x3e7/0xb30 [ 21.067530] [] xfrm_init_state+0x1a/0x20 [ 21.073214] [] pfkey_add+0x1fb9/0x3470 [ 21.078724] [] ? pfkey_delete+0x360/0x360 [ 21.084492] [] ? pfkey_seq_stop+0x80/0x80 [ 21.090260] [] ? __skb_clone+0x24a/0x7d0 [ 21.095939] [] ? pfkey_delete+0x360/0x360 [ 21.101706] [] pfkey_process+0x61e/0x730 [ 21.107386] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.114198] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.121008] [] pfkey_sendmsg+0x3a9/0x760 [ 21.126689] [] ? pfkey_spdget+0x820/0x820 [ 21.132458] [] sock_sendmsg+0xca/0x110 [ 21.137972] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.143744] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.150295] [] ? __lru_cache_add+0x187/0x250 [ 21.156328] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.163404] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.169348] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.176418] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.182544] [] ? __fget_light+0x158/0x1e0 [ 21.188311] [] ? __fdget+0x18/0x20 [ 21.193470] [] ? sockfd_lookup_light+0x118/0x160 [ 21.199854] [] __sys_sendmsg+0xd6/0x190 [ 21.205454] [] ? SyS_shutdown+0x1b0/0x1b0 [ 21.211222] [] ? __do_page_fault+0x5ec/0xd40 [ 21.217253] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.223194] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.229745] [] do_fast_syscall_32+0x2f7/0x890 [ 21.235860] [] ? trace_hardirqs_off_thunk+0x1a/0x1c executing program [ 21.242499] [] entry_SYSENTER_compat+0x74/0x83 [ 21.249238] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3328 [ 21.257925] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.263351] CPU: 0 PID: 3328 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 21.271025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.280348] ffff8801ca427668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.288316] ffffffff83f44900 ffff8801cb7b6000 0000000000000003 ffff8801ca4276a8 [ 21.296281] ffffffff81dfa714 ffff8801ca4276c0 ffffffff83f44900 dffffc0000000000 [ 21.304246] Call Trace: [ 21.306805] [] dump_stack+0xc1/0x128 [ 21.312139] [] check_preemption_disabled+0x1d4/0x200 [ 21.318863] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.325340] [] ipcomp_init_state+0x188/0x930 [ 21.331371] [] ? __lock_is_held+0xa1/0xf0 [ 21.337138] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.343162] [] __xfrm_init_state+0x3e7/0xb30 [ 21.349187] [] xfrm_init_state+0x1a/0x20 [ 21.354870] [] pfkey_add+0x1fb9/0x3470 [ 21.360379] [] ? pfkey_delete+0x360/0x360 [ 21.366161] [] ? pfkey_seq_stop+0x80/0x80 [ 21.371930] [] ? __skb_clone+0x24a/0x7d0 [ 21.377609] [] ? pfkey_delete+0x360/0x360 [ 21.383373] [] pfkey_process+0x61e/0x730 [ 21.389053] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.395863] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.402674] [] pfkey_sendmsg+0x3a9/0x760 [ 21.408354] [] ? pfkey_spdget+0x820/0x820 [ 21.414130] [] sock_sendmsg+0xca/0x110 [ 21.419645] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.425419] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.431979] [] ? __lru_cache_add+0x187/0x250 [ 21.438013] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.445084] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.451026] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.458103] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.464226] [] ? __fget_light+0x158/0x1e0 [ 21.470000] [] ? __fdget+0x18/0x20 [ 21.475160] [] ? sockfd_lookup_light+0x118/0x160 [ 21.481543] [] __sys_sendmsg+0xd6/0x190 [ 21.487143] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 21.492913] [] ? __do_page_fault+0x5ec/0xd40 [ 21.498943] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.504893] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.511458] [] do_fast_syscall_32+0x2f7/0x890 [ 21.517583] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.524220] [] entry_SYSENTER_compat+0x74/0x83 [ 21.531016] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3332 [ 21.539716] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.545144] CPU: 0 PID: 3332 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 21.552820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.562148] ffff8801cd7bf668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.570114] ffffffff83f44900 ffff8801cccf8000 0000000000000003 ffff8801cd7bf6a8 [ 21.578086] ffffffff81dfa714 ffff8801cd7bf6c0 ffffffff83f44900 dffffc0000000000 [ 21.586069] Call Trace: [ 21.588627] [] dump_stack+0xc1/0x128 [ 21.593962] [] check_preemption_disabled+0x1d4/0x200 [ 21.600687] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.607150] [] ipcomp_init_state+0x188/0x930 [ 21.613179] [] ? __lock_is_held+0xa1/0xf0 [ 21.618947] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.624977] [] __xfrm_init_state+0x3e7/0xb30 [ 21.631002] [] xfrm_init_state+0x1a/0x20 [ 21.636681] [] pfkey_add+0x1fb9/0x3470 [ 21.642186] [] ? pfkey_delete+0x360/0x360 [ 21.647959] [] ? pfkey_seq_stop+0x80/0x80 [ 21.653725] [] ? __skb_clone+0x24a/0x7d0 [ 21.659416] [] ? pfkey_delete+0x360/0x360 [ 21.665196] [] pfkey_process+0x61e/0x730 [ 21.670883] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.677793] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.684604] [] pfkey_sendmsg+0x3a9/0x760 [ 21.690283] [] ? pfkey_spdget+0x820/0x820 [ 21.696047] [] sock_sendmsg+0xca/0x110 [ 21.701555] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.707324] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.713879] [] ? __lru_cache_add+0x187/0x250 [ 21.719909] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 21.726988] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.732931] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.740000] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.746112] [] ? __fget_light+0x158/0x1e0 [ 21.751881] [] ? __fdget+0x18/0x20 [ 21.757041] [] ? sockfd_lookup_light+0x118/0x160 [ 21.763415] [] __sys_sendmsg+0xd6/0x190 [ 21.769007] [] ? SyS_shutdown+0x1b0/0x1b0 [ 21.774786] [] ? __do_page_fault+0x5ec/0xd40 [ 21.780827] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.786768] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 executing program [ 21.793318] [] do_fast_syscall_32+0x2f7/0x890 [ 21.799433] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.806069] [] entry_SYSENTER_compat+0x74/0x83 [ 21.812764] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3327 [ 21.821444] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.826922] CPU: 0 PID: 3327 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 21.834616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.843941] ffff8801ccd47668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.851912] ffffffff83f44900 ffff8801cb7b1800 0000000000000003 ffff8801ccd476a8 [ 21.859905] ffffffff81dfa714 ffff8801ccd476c0 ffffffff83f44900 dffffc0000000000 [ 21.867872] Call Trace: [ 21.870438] [] dump_stack+0xc1/0x128 [ 21.875773] [] check_preemption_disabled+0x1d4/0x200 [ 21.882494] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.888965] [] ipcomp_init_state+0x188/0x930 [ 21.894995] [] ? __lock_is_held+0xa1/0xf0 [ 21.900759] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.906786] [] __xfrm_init_state+0x3e7/0xb30 [ 21.912815] [] xfrm_init_state+0x1a/0x20 [ 21.918496] [] pfkey_add+0x1fb9/0x3470 [ 21.924002] [] ? pfkey_delete+0x360/0x360 [ 21.929765] [] ? pfkey_seq_stop+0x80/0x80 [ 21.935538] [] ? __skb_clone+0x24a/0x7d0 [ 21.941217] [] ? 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.947010] [] pfkey_process+0x61e/0x730 [ 21.947016] [] ? 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 [ 21.947022] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.947026] [] 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 executing program executing program executing program executing program executing program executing program executing program executing program [ 21.947030] [] ? pfkey_spdget+0x820/0x820 [ 21.947036] [] 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 [ 21.947040] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.947045] [] ? 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 [ 21.947051] [] ? __lru_cache_add+0x187/0x250 [ 21.947057] [] ? 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 [ 21.947065] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.947069] [] ? 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 [ 21.947073] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.947078] [] ? __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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.947081] [] ? __fdget+0x18/0x20 [ 21.947085] [] ? 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.947089] [] __sys_sendmsg+0xd6/0x190 [ 21.947092] [] ? 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 [ 21.947099] [] ? __do_page_fault+0x5ec/0xd40 [ 21.947106] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.947110] [] ? 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 [ 21.947114] [] do_fast_syscall_32+0x2f7/0x890 [ 21.947118] [] ? 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.947122] [] entry_SYSENTER_compat+0x74/0x83 [ 21.951883] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3334 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.951894] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.951900] CPU: 1 PID: 3334 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.951903] 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 [ 21.951913] ffff8801cd6ff668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 21.951921] ffffffff83f44900 ffff8801cccfb000 0000000000000003 ffff8801cd6ff6a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.951928] ffffffff81dfa714 ffff8801cd6ff6c0 ffffffff83f44900 dffffc0000000000 [ 21.951929] Call Trace: [ 21.951938] [] 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 [ 21.951945] [] check_preemption_disabled+0x1d4/0x200 [ 21.951952] [] __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 executing program executing program executing program executing program executing program executing program [ 21.951960] [] ipcomp_init_state+0x188/0x930 [ 21.951968] [] ? __lock_is_held+0xa1/0xf0 [ 21.951974] [] 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 [ 21.951979] [] __xfrm_init_state+0x3e7/0xb30 [ 21.951984] [] 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 executing program executing program executing program [ 21.951991] [] pfkey_add+0x1fb9/0x3470 [ 21.951997] [] ? pfkey_delete+0x360/0x360 [ 21.952001] [] ? 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 [ 21.952008] [] ? __skb_clone+0x24a/0x7d0 [ 21.952013] [] ? pfkey_delete+0x360/0x360 [ 21.952018] [] 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 [ 21.952023] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 21.952030] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.952036] [] 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.952041] [] ? pfkey_spdget+0x820/0x820 [ 21.952049] [] sock_sendmsg+0xca/0x110 [ 21.952054] [] ___sys_sendmsg+0x6d1/0x7e0 [ 21.952061] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.952070] [] ? __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 [ 21.952079] [] ? 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 [ 21.952087] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.952093] [] ? 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 [ 21.952100] [] ? handle_mm_fault+0x6ee/0x2530 [ 21.952106] [] ? __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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.952111] [] ? __fdget+0x18/0x20 [ 21.952118] [] ? 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.952123] [] __sys_sendmsg+0xd6/0x190 [ 21.952129] [] ? SyS_shutdown+0x1b0/0x1b0 [ 21.952138] [] ? __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 [ 21.952145] [] compat_SyS_sendmsg+0x2a/0x40 [ 21.952152] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.952160] [] 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 [ 21.952166] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 21.952172] [] 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 [ 21.954708] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3327 [ 21.954719] caller is __this_cpu_preempt_check+0x1c/0x20 [ 21.954725] CPU: 0 PID: 3327 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.954727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.954736] ffff8801ccd47668 ffffffff81d93149 0000000000000000 ffffffff83c17e00 [ 21.954743] ffffffff83f44900 ffff8801cb7b1800 0000000000000003 ffff8801ccd476a8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.954749] ffffffff81dfa714 ffff8801ccd476c0 ffffffff83f44900 dffffc0000000000 [ 21.954750] Call Trace: [ 21.954758] [] 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 [ 21.954765] [] check_preemption_disabled+0x1d4/0x200 [ 21.954771] [] __this_cpu_preempt_check+0x1c/0x20 [ 21.954779] [] ipcomp_init_state+0x188/0x930 [ 21.954787] [] ? __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 [ 21.954794] [] ipcomp4_init_state+0xb0/0x7d0 [ 21.954799] [] __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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.954810] [] xfrm_init_state+0x1a/0x20 [ 21.954818] [] pfkey_add+0x1fb9/0x3470 [ 21.954825] [] ? 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 [ 21.954831] [] ? pfkey_seq_stop+0x80/0x80 [ 21.954839] [] ? __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 [ 21.954845] [] ? pfkey_delete+0x360/0x360 [ 21.954851] [] pfkey_process+0x61e/0x730 [ 21.954858] [] ? 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 [ 21.954866] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 21.954873] [] pfkey_sendmsg+0x3a9/0x760 [ 21.954880] [] ? 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 [ 21.954888] [] sock_sendmsg+0xca/0x110 [ 21.954895] [] ___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 [ 21.954903] [] ? copy_msghdr_from_user+0x550/0x550 [ 21.954913] [] ? __lru_cache_add+0x187/0x250 [ 21.954922] [] ? 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 [ 21.954931] [] ? _raw_spin_unlock+0x2c/0x50 [ 21.954938] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 21.954945] [] ? 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 executing program executing program executing program executing program executing program executing program executing program [ 21.954952] [] ? __fget_light+0x158/0x1e0 [ 21.954957] [] ? __fdget+0x18/0x20 [ 21.954965] [] ? sockfd_lookup_light+0x118/0x160 [ 21.954970] [] __sys_sendmsg+0xd6/0x190 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 21.954976] [] ? SyS_shutdown+0x1b0/0x1b0 [ 21.954983] [] ? __do_page_fault+0x5ec/0xd40 [ 21.954990] [] 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 [ 21.954996] [] ? compat_SyS_getsockopt+0x2a0/0x2a0 [ 21.955003] [] do_fast_syscall_32+0x2f7/0x890 [ 21.955010] [] ? 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 [ 21.955017] [] 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 [ 24.846399] check_preemption_disabled: 2107 callbacks suppressed [ 24.846405] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller161589/3329 [ 24.861282] caller is __this_cpu_preempt_check+0x1c/0x20 [ 24.866750] CPU: 1 PID: 3329 Comm: syzkaller161589 Not tainted 4.9.76-gf0f6293 #22 [ 24.874442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.883771] ffff8801ccd0f668 ffffffff81d93149 0000000000000001 ffffffff83c17e00 [ 24.891736] ffffffff83f44900 ffff8801cb7b4800 0000000000000003 ffff8801ccd0f6a8 [ 24.899702] ffffffff81dfa714 ffff8801ccd0f6c0 ffffffff83f44900 dffffc0000000000 [ 24.907690] Call Trace: [ 24.910248] [] dump_stack+0xc1/0x128 [ 24.915590] [] check_preemption_disabled+0x1d4/0x200 [ 24.922311] [] __this_cpu_preempt_check+0x1c/0x20 [ 24.928782] [] ipcomp_init_state+0x188/0x930 [ 24.934810] [] ? __lock_is_held+0xa1/0xf0 [ 24.940588] [] ipcomp4_init_state+0xb0/0x7d0 [ 24.946614] [] __xfrm_init_state+0x3e7/0xb30 [ 24.952641] [] xfrm_init_state+0x1a/0x20 [ 24.958321] [] pfkey_add+0x1fb9/0x3470 [ 24.963825] [] ? pfkey_delete+0x360/0x360 [ 24.969592] [] ? pfkey_seq_stop+0x80/0x80 [ 24.975365] [] ? __skb_clone+0x24a/0x7d0 [ 24.981047] [] ? pfkey_delete+0x360/0x360 [ 24.986814] [] pfkey_process+0x61e/0x730 [ 24.992493] [] ? pfkey_send_new_mapping+0x11b0/0x11b0 [ 24.999302] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 25.006109] [] pfkey_sendmsg+0x3a9/0x760 [ 25.011801] [] ? pfkey_spdget+0x820/0x820 [ 25.017569] [] sock_sendmsg+0xca/0x110 [ 25.023076] [] ___sys_sendmsg+0x6d1/0x7e0 [ 25.028842] [] ? copy_msghdr_from_user+0x550/0x550 [ 25.035390] [] ? __lru_cache_add+0x187/0x250 [ 25.041418] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 25.048490] [] ? _raw_spin_unlock+0x2c/0x50 [ 25.054431] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 25.061507] [] ? handle_mm_fault+0x6ee/0x2530 [ 25.067621] [] ? __fget_light+0x158/0x1e0 [ 25.073389] [] ? __fdget+0x18/0x20 [ 25.078550] [] ? sockfd_lookup_light+0x118/0x160 [ 25.084925] [] __sys_sendmsg+0xd6/0x190 [ 25.090518] [