[....] Starting enhanced syslogd: rsyslogd[ 16.496809] audit: type=1400 audit(1517247649.303:4): avc: denied { syslog } for pid=3907 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 51.182067] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4080 [ 51.190916] caller is __this_cpu_preempt_check+0x1c/0x20 [ 51.196342] CPU: 1 PID: 4080 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 51.204018] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.213344] ffff8801b270f490 ffffffff81d94409 0000000000000001 ffffffff83c18800 [ 51.221312] ffffffff83f45480 ffff8801d355c800 0000000000000003 ffff8801b270f4d0 [ 51.229286] ffffffff81dfb9d4 ffff8801b270f4e8 ffffffff83f45480 dffffc0000000000 [ 51.237266] Call Trace: [ 51.239841] [] dump_stack+0xc1/0x128 [ 51.245192] [] check_preemption_disabled+0x1d4/0x200 [ 51.251931] [] __this_cpu_preempt_check+0x1c/0x20 [ 51.258398] [] ipcomp_init_state+0x188/0x930 [ 51.264440] [] ? __lock_is_held+0xa1/0xf0 [ 51.270215] [] ipcomp4_init_state+0xb0/0x7d0 [ 51.276254] [] __xfrm_init_state+0x3e7/0xb30 [ 51.282290] [] xfrm_add_sa+0x1916/0x2e40 [ 51.287973] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.294784] [] ? nla_parse+0x213/0x260 [ 51.300289] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.307100] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 51.313129] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.319161] [] netlink_rcv_skb+0x13e/0x370 [ 51.325024] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.331071] [] xfrm_netlink_rcv+0x6f/0x90 [ 51.336856] [] netlink_unicast+0x511/0x750 [ 51.342741] [] ? netlink_unicast+0x43c/0x750 [ 51.348775] [] ? netlink_attachskb+0x680/0x680 [ 51.354980] [] netlink_sendmsg+0x8e8/0xc50 [ 51.360837] [] ? netlink_unicast+0x750/0x750 [ 51.366876] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 51.373351] [] ? security_socket_sendmsg+0x89/0xb0 [ 51.379908] [] ? netlink_unicast+0x750/0x750 [ 51.385939] [] sock_sendmsg+0xca/0x110 [ 51.391449] [] ___sys_sendmsg+0x6d1/0x7e0 [ 51.397219] [] ? copy_msghdr_from_user+0x550/0x550 [ 51.403771] [] ? __lru_cache_add+0x187/0x250 [ 51.409801] [] ? lru_cache_add+0xd9/0x1e0 [ 51.415569] [] ? handle_mm_fault+0xb12/0x2530 [ 51.421691] [] ? _raw_spin_unlock+0x2c/0x50 [ 51.427634] [] ? handle_mm_fault+0x6ee/0x2530 [ 51.433750] [] ? __lock_is_held+0xa1/0xf0 [ 51.439521] [] ? __pmd_alloc+0x410/0x410 [ 51.445206] [] ? __fget_light+0x158/0x1e0 [ 51.450974] [] ? __fdget+0x18/0x20 [ 51.456137] [] __sys_sendmsg+0xd6/0x190 [ 51.461731] [] ? SyS_shutdown+0x1b0/0x1b0 [ 51.467500] [] ? __do_page_fault+0x5ec/0xd40 [ 51.473529] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 51.479563] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 51.486378] [] SyS_sendmsg+0x2d/0x50 [ 51.491714] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 51.502930] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4081 [ 51.511654] caller is __this_cpu_preempt_check+0x1c/0x20 [ 51.517166] CPU: 0 PID: 4081 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 51.524844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.534171] ffff8801b270f490 ffffffff81d94409 0000000000000000 ffffffff83c18800 [ 51.542147] ffffffff83f45480 ffff8801d355e000 0000000000000003 ffff8801b270f4d0 [ 51.550122] ffffffff81dfb9d4 ffff8801b270f4e8 ffffffff83f45480 dffffc0000000000 [ 51.558117] Call Trace: [ 51.560686] [] dump_stack+0xc1/0x128 [ 51.566020] [] check_preemption_disabled+0x1d4/0x200 [ 51.572745] [] __this_cpu_preempt_check+0x1c/0x20 [ 51.579209] [] ipcomp_init_state+0x188/0x930 [ 51.585242] [] ? __lock_is_held+0xa1/0xf0 [ 51.591009] [] ipcomp4_init_state+0xb0/0x7d0 [ 51.597141] [] __xfrm_init_state+0x3e7/0xb30 [ 51.603169] [] xfrm_add_sa+0x1916/0x2e40 [ 51.608849] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.615659] [] ? nla_parse+0x213/0x260 [ 51.621166] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.627975] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 51.634003] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.640032] [] netlink_rcv_skb+0x13e/0x370 [ 51.645901] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.651937] [] xfrm_netlink_rcv+0x6f/0x90 [ 51.657711] [] netlink_unicast+0x511/0x750 [ 51.663568] [] ? netlink_unicast+0x43c/0x750 [ 51.669597] [] ? netlink_attachskb+0x680/0x680 [ 51.675802] [] netlink_sendmsg+0x8e8/0xc50 [ 51.681658] [] ? netlink_unicast+0x750/0x750 [ 51.687689] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 51.694165] [] ? security_socket_sendmsg+0x89/0xb0 [ 51.700723] [] ? netlink_unicast+0x750/0x750 [ 51.706838] [] sock_sendmsg+0xca/0x110 [ 51.712346] [] ___sys_sendmsg+0x6d1/0x7e0 [ 51.718113] [] ? copy_msghdr_from_user+0x550/0x550 [ 51.724665] [] ? __lru_cache_add+0x187/0x250 [ 51.730702] [] ? lru_cache_add+0xd9/0x1e0 [ 51.736479] [] ? handle_mm_fault+0xb12/0x2530 [ 51.742597] [] ? _raw_spin_unlock+0x2c/0x50 [ 51.748542] [] ? handle_mm_fault+0x6ee/0x2530 [ 51.754662] [] ? __lock_is_held+0xa1/0xf0 [ 51.760429] [] ? __pmd_alloc+0x410/0x410 [ 51.766124] [] ? __fget_light+0x158/0x1e0 [ 51.771891] [] ? __fdget+0x18/0x20 [ 51.777057] [] __sys_sendmsg+0xd6/0x190 executing program [ 51.782651] [] ? SyS_shutdown+0x1b0/0x1b0 [ 51.788420] [] ? __do_page_fault+0x5ec/0xd40 [ 51.794448] [] ? __do_page_fault+0x3bd/0xd40 [ 51.800486] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 51.807302] [] SyS_sendmsg+0x2d/0x50 [ 51.812637] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 51.823562] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4082 [ 51.832304] caller is __this_cpu_preempt_check+0x1c/0x20 [ 51.837731] CPU: 1 PID: 4082 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 51.845409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.854736] ffff8801b270f490 ffffffff81d94409 0000000000000001 ffffffff83c18800 [ 51.862702] ffffffff83f45480 ffff8801d97d1800 0000000000000003 ffff8801b270f4d0 [ 51.870679] ffffffff81dfb9d4 ffff8801b270f4e8 ffffffff83f45480 dffffc0000000000 [ 51.878645] Call Trace: [ 51.881213] [] dump_stack+0xc1/0x128 [ 51.886551] [] check_preemption_disabled+0x1d4/0x200 [ 51.893274] [] __this_cpu_preempt_check+0x1c/0x20 [ 51.899739] [] ipcomp_init_state+0x188/0x930 [ 51.905772] [] ? __lock_is_held+0xa1/0xf0 [ 51.911544] [] ipcomp4_init_state+0xb0/0x7d0 [ 51.917572] [] __xfrm_init_state+0x3e7/0xb30 [ 51.923601] [] xfrm_add_sa+0x1916/0x2e40 [ 51.929283] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.936100] [] ? nla_parse+0x213/0x260 [ 51.941607] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 51.948425] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 51.954458] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.960496] [] netlink_rcv_skb+0x13e/0x370 [ 51.966357] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 51.972384] [] xfrm_netlink_rcv+0x6f/0x90 [ 51.978159] [] netlink_unicast+0x511/0x750 [ 51.984019] [] ? netlink_unicast+0x43c/0x750 [ 51.990058] [] ? netlink_attachskb+0x680/0x680 [ 51.996267] [] netlink_sendmsg+0x8e8/0xc50 [ 52.002131] [] ? netlink_unicast+0x750/0x750 [ 52.008339] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 52.014805] [] ? security_socket_sendmsg+0x89/0xb0 [ 52.021360] [] ? netlink_unicast+0x750/0x750 [ 52.027389] [] sock_sendmsg+0xca/0x110 [ 52.032903] [] ___sys_sendmsg+0x6d1/0x7e0 [ 52.038678] [] ? copy_msghdr_from_user+0x550/0x550 [ 52.045232] [] ? __lru_cache_add+0x187/0x250 [ 52.051263] [] ? lru_cache_add+0xd9/0x1e0 [ 52.057050] [] ? handle_mm_fault+0xb12/0x2530 [ 52.063164] [] ? _raw_spin_unlock+0x2c/0x50 [ 52.069110] [] ? handle_mm_fault+0x6ee/0x2530 [ 52.075240] [] ? __lock_is_held+0xa1/0xf0 [ 52.081010] [] ? __pmd_alloc+0x410/0x410 [ 52.086693] [] ? __fget_light+0x158/0x1e0 [ 52.092462] [] ? __fdget+0x18/0x20 [ 52.097620] [] __sys_sendmsg+0xd6/0x190 [ 52.103215] [] ? SyS_shutdown+0x1b0/0x1b0 [ 52.108983] [] ? __do_page_fault+0x5ec/0xd40 [ 52.115029] [] ? __do_page_fault+0x3bd/0xd40 [ 52.121058] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 52.127875] [] SyS_sendmsg+0x2d/0x50 executing program [ 52.133208] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 52.142965] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4083 [ 52.151698] caller is __this_cpu_preempt_check+0x1c/0x20 [ 52.157125] CPU: 1 PID: 4083 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 52.164798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.174126] ffff8801b26cf490 ffffffff81d94409 0000000000000001 ffffffff83c18800 [ 52.182099] ffffffff83f45480 ffff8801b2708000 0000000000000003 ffff8801b26cf4d0 [ 52.190071] ffffffff81dfb9d4 ffff8801b26cf4e8 ffffffff83f45480 dffffc0000000000 [ 52.198042] Call Trace: [ 52.200604] [] dump_stack+0xc1/0x128 [ 52.205939] [] check_preemption_disabled+0x1d4/0x200 [ 52.212663] [] __this_cpu_preempt_check+0x1c/0x20 [ 52.219125] [] ipcomp_init_state+0x188/0x930 [ 52.225167] [] ? __lock_is_held+0xa1/0xf0 [ 52.230940] [] ipcomp4_init_state+0xb0/0x7d0 [ 52.236971] [] __xfrm_init_state+0x3e7/0xb30 [ 52.243030] [] xfrm_add_sa+0x1916/0x2e40 [ 52.248737] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.255560] [] ? nla_parse+0x213/0x260 [ 52.261069] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.267880] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 52.273918] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.279977] [] netlink_rcv_skb+0x13e/0x370 [ 52.285837] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.291868] [] xfrm_netlink_rcv+0x6f/0x90 [ 52.297638] [] netlink_unicast+0x511/0x750 [ 52.303495] [] ? netlink_unicast+0x43c/0x750 [ 52.309524] [] ? netlink_attachskb+0x680/0x680 [ 52.315735] [] netlink_sendmsg+0x8e8/0xc50 [ 52.321593] [] ? netlink_unicast+0x750/0x750 [ 52.327640] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 52.334135] [] ? security_socket_sendmsg+0x89/0xb0 [ 52.340693] [] ? netlink_unicast+0x750/0x750 [ 52.346724] [] sock_sendmsg+0xca/0x110 [ 52.352231] [] ___sys_sendmsg+0x6d1/0x7e0 [ 52.358004] [] ? copy_msghdr_from_user+0x550/0x550 [ 52.364555] [] ? __lru_cache_add+0x187/0x250 [ 52.370594] [] ? lru_cache_add+0xd9/0x1e0 [ 52.376365] [] ? handle_mm_fault+0xb12/0x2530 [ 52.382486] [] ? _raw_spin_unlock+0x2c/0x50 [ 52.388432] [] ? handle_mm_fault+0x6ee/0x2530 [ 52.394564] [] ? __lock_is_held+0xa1/0xf0 [ 52.400434] [] ? __pmd_alloc+0x410/0x410 [ 52.406121] [] ? __fget_light+0x158/0x1e0 [ 52.411905] [] ? __fdget+0x18/0x20 [ 52.417098] [] __sys_sendmsg+0xd6/0x190 [ 52.422697] [] ? SyS_shutdown+0x1b0/0x1b0 [ 52.428471] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 52.434503] [] ? __do_page_fault+0x3bd/0xd40 [ 52.440534] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 52.447357] [] SyS_sendmsg+0x2d/0x50 [ 52.452691] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 52.462504] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4084 [ 52.471201] caller is __this_cpu_preempt_check+0x1c/0x20 [ 52.476628] CPU: 0 PID: 4084 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 52.484303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.493627] ffff8801b26cf490 ffffffff81d94409 0000000000000000 ffffffff83c18800 [ 52.501595] ffffffff83f45480 ffff8801b2709800 0000000000000003 ffff8801b26cf4d0 [ 52.509568] ffffffff81dfb9d4 ffff8801b26cf4e8 ffffffff83f45480 dffffc0000000000 [ 52.517543] Call Trace: [ 52.520102] [] dump_stack+0xc1/0x128 [ 52.525434] [] check_preemption_disabled+0x1d4/0x200 [ 52.532155] [] __this_cpu_preempt_check+0x1c/0x20 [ 52.538620] [] ipcomp_init_state+0x188/0x930 [ 52.544656] [] ? __lock_is_held+0xa1/0xf0 [ 52.550448] [] ipcomp4_init_state+0xb0/0x7d0 [ 52.556481] [] __xfrm_init_state+0x3e7/0xb30 [ 52.562510] [] xfrm_add_sa+0x1916/0x2e40 [ 52.568188] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.575008] [] ? nla_parse+0x213/0x260 [ 52.580515] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.587325] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 52.593354] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.599382] [] netlink_rcv_skb+0x13e/0x370 [ 52.605235] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.611261] [] xfrm_netlink_rcv+0x6f/0x90 [ 52.617041] [] netlink_unicast+0x511/0x750 [ 52.622898] [] ? netlink_unicast+0x43c/0x750 [ 52.628923] [] ? netlink_attachskb+0x680/0x680 [ 52.635122] [] netlink_sendmsg+0x8e8/0xc50 [ 52.640987] [] ? netlink_unicast+0x750/0x750 [ 52.647041] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 52.653506] [] ? security_socket_sendmsg+0x89/0xb0 [ 52.660185] [] ? netlink_unicast+0x750/0x750 [ 52.666227] [] sock_sendmsg+0xca/0x110 [ 52.671749] [] ___sys_sendmsg+0x6d1/0x7e0 [ 52.677518] [] ? copy_msghdr_from_user+0x550/0x550 [ 52.684078] [] ? __lru_cache_add+0x187/0x250 [ 52.690109] [] ? lru_cache_add+0xd9/0x1e0 [ 52.695876] [] ? handle_mm_fault+0xb12/0x2530 [ 52.701991] [] ? _raw_spin_unlock+0x2c/0x50 [ 52.707939] [] ? handle_mm_fault+0x6ee/0x2530 [ 52.714071] [] ? __lock_is_held+0xa1/0xf0 [ 52.719845] [] ? __pmd_alloc+0x410/0x410 [ 52.725525] [] ? __fget_light+0x158/0x1e0 [ 52.731289] [] ? __fdget+0x18/0x20 executing program [ 52.736447] [] __sys_sendmsg+0xd6/0x190 [ 52.742041] [] ? SyS_shutdown+0x1b0/0x1b0 [ 52.747805] [] ? __do_page_fault+0x5ec/0xd40 [ 52.753844] [] ? __do_page_fault+0x3bd/0xd40 [ 52.759874] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 52.766684] [] SyS_sendmsg+0x2d/0x50 [ 52.772018] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 52.782291] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4085 [ 52.791011] caller is __this_cpu_preempt_check+0x1c/0x20 [ 52.796436] CPU: 0 PID: 4085 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 52.804110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.813442] ffff8801b26cf490 ffffffff81d94409 0000000000000000 ffffffff83c18800 [ 52.821422] ffffffff83f45480 ffff8801d57a3000 0000000000000003 ffff8801b26cf4d0 [ 52.829402] ffffffff81dfb9d4 ffff8801b26cf4e8 ffffffff83f45480 dffffc0000000000 [ 52.837373] Call Trace: [ 52.839936] [] dump_stack+0xc1/0x128 [ 52.845270] [] check_preemption_disabled+0x1d4/0x200 [ 52.851999] [] __this_cpu_preempt_check+0x1c/0x20 [ 52.858463] [] ipcomp_init_state+0x188/0x930 [ 52.864501] [] ? __lock_is_held+0xa1/0xf0 [ 52.870275] [] ipcomp4_init_state+0xb0/0x7d0 [ 52.876304] [] __xfrm_init_state+0x3e7/0xb30 [ 52.882330] [] xfrm_add_sa+0x1916/0x2e40 [ 52.888009] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.894817] [] ? nla_parse+0x213/0x260 [ 52.900326] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 52.907140] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 52.913168] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.919204] [] netlink_rcv_skb+0x13e/0x370 [ 52.925056] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 52.931084] [] xfrm_netlink_rcv+0x6f/0x90 [ 52.936852] [] netlink_unicast+0x511/0x750 [ 52.942705] [] ? netlink_unicast+0x43c/0x750 [ 52.948733] [] ? netlink_attachskb+0x680/0x680 [ 52.954934] [] netlink_sendmsg+0x8e8/0xc50 [ 52.960789] [] ? netlink_unicast+0x750/0x750 [ 52.966821] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 52.973382] [] ? security_socket_sendmsg+0x89/0xb0 [ 52.979940] [] ? netlink_unicast+0x750/0x750 [ 52.985970] [] sock_sendmsg+0xca/0x110 [ 52.991479] [] ___sys_sendmsg+0x6d1/0x7e0 [ 52.997254] [] ? copy_msghdr_from_user+0x550/0x550 [ 53.003808] [] ? __lru_cache_add+0x187/0x250 [ 53.009837] [] ? lru_cache_add+0xd9/0x1e0 [ 53.015604] [] ? handle_mm_fault+0xb12/0x2530 [ 53.021719] [] ? _raw_spin_unlock+0x2c/0x50 [ 53.027660] [] ? handle_mm_fault+0x6ee/0x2530 [ 53.033779] [] ? __lock_is_held+0xa1/0xf0 [ 53.039545] [] ? __pmd_alloc+0x410/0x410 [ 53.045229] [] ? __fget_light+0x158/0x1e0 [ 53.050994] [] ? __fdget+0x18/0x20 [ 53.056155] [] __sys_sendmsg+0xd6/0x190 [ 53.061749] [] ? SyS_shutdown+0x1b0/0x1b0 [ 53.067535] [] ? __do_page_fault+0x5ec/0xd40 [ 53.073562] [] ? __do_page_fault+0x3bd/0xd40 [ 53.079594] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 53.086404] [] SyS_sendmsg+0x2d/0x50 [ 53.091737] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 53.103316] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4086 [ 53.112037] caller is __this_cpu_preempt_check+0x1c/0x20 [ 53.117464] CPU: 1 PID: 4086 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 53.125140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.134468] ffff8801c7baf490 ffffffff81d94409 0000000000000001 ffffffff83c18800 [ 53.142441] ffffffff83f45480 ffff8801b26c8000 0000000000000003 ffff8801c7baf4d0 [ 53.150418] ffffffff81dfb9d4 ffff8801c7baf4e8 ffffffff83f45480 dffffc0000000000 [ 53.158393] Call Trace: [ 53.160958] [] dump_stack+0xc1/0x128 [ 53.166291] [] check_preemption_disabled+0x1d4/0x200 [ 53.173014] [] __this_cpu_preempt_check+0x1c/0x20 [ 53.179481] [] ipcomp_init_state+0x188/0x930 [ 53.185514] [] ? __lock_is_held+0xa1/0xf0 [ 53.191278] [] ipcomp4_init_state+0xb0/0x7d0 [ 53.197305] [] __xfrm_init_state+0x3e7/0xb30 [ 53.203332] [] xfrm_add_sa+0x1916/0x2e40 [ 53.209017] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.215836] [] ? nla_parse+0x213/0x260 [ 53.221345] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.228161] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 53.234188] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.240218] [] netlink_rcv_skb+0x13e/0x370 [ 53.246088] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.252118] [] xfrm_netlink_rcv+0x6f/0x90 [ 53.257893] [] netlink_unicast+0x511/0x750 [ 53.263747] [] ? netlink_unicast+0x43c/0x750 [ 53.269776] [] ? netlink_attachskb+0x680/0x680 [ 53.275979] [] netlink_sendmsg+0x8e8/0xc50 [ 53.281834] [] ? netlink_unicast+0x750/0x750 [ 53.287865] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 53.294327] [] ? security_socket_sendmsg+0x89/0xb0 [ 53.300877] [] ? netlink_unicast+0x750/0x750 [ 53.306904] [] sock_sendmsg+0xca/0x110 [ 53.312407] [] ___sys_sendmsg+0x6d1/0x7e0 [ 53.318175] [] ? copy_msghdr_from_user+0x550/0x550 [ 53.324727] [] ? __lru_cache_add+0x187/0x250 [ 53.330758] [] ? lru_cache_add+0xd9/0x1e0 [ 53.336526] [] ? handle_mm_fault+0xb12/0x2530 [ 53.342640] [] ? _raw_spin_unlock+0x2c/0x50 [ 53.348583] [] ? handle_mm_fault+0x6ee/0x2530 [ 53.354699] [] ? __lock_is_held+0xa1/0xf0 [ 53.360467] [] ? __pmd_alloc+0x410/0x410 [ 53.366161] [] ? __fget_light+0x158/0x1e0 [ 53.371929] [] ? __fdget+0x18/0x20 [ 53.377089] [] __sys_sendmsg+0xd6/0x190 [ 53.382681] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 53.388449] [] ? __do_page_fault+0x5ec/0xd40 [ 53.394476] [] ? __do_page_fault+0x3bd/0xd40 [ 53.400505] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 53.407328] [] SyS_sendmsg+0x2d/0x50 [ 53.412668] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 53.423938] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4087 [ 53.432668] caller is __this_cpu_preempt_check+0x1c/0x20 [ 53.438102] CPU: 0 PID: 4087 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 53.445781] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.455107] ffff8801c7baf490 ffffffff81d94409 0000000000000000 ffffffff83c18800 [ 53.463120] ffffffff83f45480 ffff8801b26c9800 0000000000000003 ffff8801c7baf4d0 [ 53.471102] ffffffff81dfb9d4 ffff8801c7baf4e8 ffffffff83f45480 dffffc0000000000 [ 53.479074] Call Trace: [ 53.481634] [] dump_stack+0xc1/0x128 [ 53.486967] [] check_preemption_disabled+0x1d4/0x200 [ 53.493691] [] __this_cpu_preempt_check+0x1c/0x20 [ 53.500166] [] ipcomp_init_state+0x188/0x930 [ 53.506203] [] ? __lock_is_held+0xa1/0xf0 [ 53.511978] [] ipcomp4_init_state+0xb0/0x7d0 [ 53.518013] [] __xfrm_init_state+0x3e7/0xb30 [ 53.524042] [] xfrm_add_sa+0x1916/0x2e40 [ 53.529725] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.536544] [] ? nla_parse+0x213/0x260 [ 53.542078] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.548903] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 53.554937] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.560965] [] netlink_rcv_skb+0x13e/0x370 [ 53.566831] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.572867] [] xfrm_netlink_rcv+0x6f/0x90 [ 53.578648] [] netlink_unicast+0x511/0x750 [ 53.584512] [] ? netlink_unicast+0x43c/0x750 [ 53.590540] [] ? netlink_attachskb+0x680/0x680 [ 53.596741] [] netlink_sendmsg+0x8e8/0xc50 [ 53.602596] [] ? netlink_unicast+0x750/0x750 [ 53.608625] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 53.615085] [] ? security_socket_sendmsg+0x89/0xb0 [ 53.621632] [] ? netlink_unicast+0x750/0x750 [ 53.627660] [] sock_sendmsg+0xca/0x110 [ 53.633177] [] ___sys_sendmsg+0x6d1/0x7e0 [ 53.638948] [] ? copy_msghdr_from_user+0x550/0x550 [ 53.645498] [] ? __lru_cache_add+0x187/0x250 [ 53.651527] [] ? lru_cache_add+0xd9/0x1e0 [ 53.657293] [] ? handle_mm_fault+0xb12/0x2530 [ 53.663408] [] ? _raw_spin_unlock+0x2c/0x50 [ 53.669358] [] ? handle_mm_fault+0x6ee/0x2530 [ 53.675477] [] ? __lock_is_held+0xa1/0xf0 [ 53.681245] [] ? __pmd_alloc+0x410/0x410 [ 53.686927] [] ? __fget_light+0x158/0x1e0 executing program [ 53.692703] [] ? __fdget+0x18/0x20 [ 53.697864] [] __sys_sendmsg+0xd6/0x190 [ 53.703469] [] ? SyS_shutdown+0x1b0/0x1b0 [ 53.709238] [] ? __do_page_fault+0x5ec/0xd40 [ 53.715270] [] ? __do_page_fault+0x3bd/0xd40 [ 53.721297] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 53.728114] [] SyS_sendmsg+0x2d/0x50 [ 53.733648] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 53.748688] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4088 [ 53.757430] caller is __this_cpu_preempt_check+0x1c/0x20 [ 53.762897] CPU: 1 PID: 4088 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 53.770581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.779909] ffff8801c7baf490 ffffffff81d94409 0000000000000001 ffffffff83c18800 [ 53.787915] ffffffff83f45480 ffff8801b270b000 0000000000000003 ffff8801c7baf4d0 [ 53.795885] ffffffff81dfb9d4 ffff8801c7baf4e8 ffffffff83f45480 dffffc0000000000 [ 53.803848] Call Trace: [ 53.806407] [] dump_stack+0xc1/0x128 [ 53.811743] [] check_preemption_disabled+0x1d4/0x200 [ 53.818467] [] __this_cpu_preempt_check+0x1c/0x20 [ 53.824934] [] ipcomp_init_state+0x188/0x930 [ 53.830964] [] ? __lock_is_held+0xa1/0xf0 [ 53.836731] [] ipcomp4_init_state+0xb0/0x7d0 [ 53.842769] [] __xfrm_init_state+0x3e7/0xb30 [ 53.848798] [] xfrm_add_sa+0x1916/0x2e40 [ 53.854480] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.861290] [] ? nla_parse+0x213/0x260 [ 53.866797] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 53.873703] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 53.879731] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.885767] [] netlink_rcv_skb+0x13e/0x370 [ 53.891622] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 53.897653] [] xfrm_netlink_rcv+0x6f/0x90 [ 53.903421] [] netlink_unicast+0x511/0x750 [ 53.909279] [] ? netlink_unicast+0x43c/0x750 [ 53.915317] [] ? netlink_attachskb+0x680/0x680 [ 53.921518] [] netlink_sendmsg+0x8e8/0xc50 [ 53.927375] [] ? netlink_unicast+0x750/0x750 [ 53.933405] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 53.939873] [] ? security_socket_sendmsg+0x89/0xb0 [ 53.946424] [] ? netlink_unicast+0x750/0x750 [ 53.952457] [] sock_sendmsg+0xca/0x110 [ 53.957965] [] ___sys_sendmsg+0x6d1/0x7e0 [ 53.963741] [] ? copy_msghdr_from_user+0x550/0x550 [ 53.970304] [] ? __lru_cache_add+0x187/0x250 [ 53.976362] [] ? lru_cache_add+0xd9/0x1e0 [ 53.982143] [] ? handle_mm_fault+0xb12/0x2530 [ 53.988264] [] ? _raw_spin_unlock+0x2c/0x50 [ 53.994217] [] ? handle_mm_fault+0x6ee/0x2530 [ 54.000337] [] ? __lock_is_held+0xa1/0xf0 [ 54.006107] [] ? __pmd_alloc+0x410/0x410 [ 54.011794] [] ? __fget_light+0x158/0x1e0 [ 54.017568] [] ? __fdget+0x18/0x20 [ 54.022734] [] __sys_sendmsg+0xd6/0x190 [ 54.028342] [] ? SyS_shutdown+0x1b0/0x1b0 [ 54.034124] [] ? __do_page_fault+0x5ec/0xd40 [ 54.040153] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 54.046185] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 54.052999] [] SyS_sendmsg+0x2d/0x50 [ 54.058335] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 54.069398] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller899667/4089 [ 54.078121] caller is __this_cpu_preempt_check+0x1c/0x20 [ 54.083587] CPU: 0 PID: 4089 Comm: syzkaller899667 Not tainted 4.9.78-g7be1985 #24 [ 54.091293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.100624] ffff8801c7baf490 ffffffff81d94409 0000000000000000 ffffffff83c18800 [ 54.108616] ffffffff83f45480 ffff8801b26cb000 0000000000000003 ffff8801c7baf4d0 [ 54.116598] ffffffff81dfb9d4 ffff8801c7baf4e8 ffffffff83f45480 dffffc0000000000 [ 54.124572] Call Trace: [ 54.127134] [] dump_stack+0xc1/0x128 [ 54.132471] [] check_preemption_disabled+0x1d4/0x200 [ 54.139201] [] __this_cpu_preempt_check+0x1c/0x20 [ 54.145668] [] ipcomp_init_state+0x188/0x930 [ 54.151696] [] ? __lock_is_held+0xa1/0xf0 [ 54.157466] [] ipcomp4_init_state+0xb0/0x7d0 [ 54.163495] [] __xfrm_init_state+0x3e7/0xb30 [ 54.169524] [] xfrm_add_sa+0x1916/0x2e40 [ 54.175205] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 54.182018] [] ? nla_parse+0x213/0x260 [ 54.187525] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 54.194335] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 54.200375] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 54.206413] [