[....] Starting enhanced syslogd: rsyslogd[ 10.808842] audit: type=1400 audit(1516645142.051:4): avc: denied { syslog } for pid=3172 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.36' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 27.932418] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 27.933723] caller is __this_cpu_preempt_check+0x1c/0x20 [ 27.934493] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 27.935552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.936825] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 27.938023] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 27.939378] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 27.940617] Call Trace: [ 27.940998] [] dump_stack+0xc1/0x128 [ 27.941747] [] check_preemption_disabled+0x1d4/0x200 [ 27.942655] [] __this_cpu_preempt_check+0x1c/0x20 [ 27.943516] [] ipcomp_init_state+0x188/0x930 [ 27.944363] [] ? __lock_is_held+0xa1/0xf0 [ 27.945163] [] ipcomp4_init_state+0xb0/0x7d0 [ 27.946014] [] __xfrm_init_state+0x3e7/0xb30 [ 27.946817] [] xfrm_add_sa+0x1916/0x2e40 [ 27.947596] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.948519] [] ? nla_parse+0x213/0x260 [ 27.949285] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.950223] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 27.951044] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.951870] [] netlink_rcv_skb+0x13e/0x370 [ 27.952669] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 27.958697] [] xfrm_netlink_rcv+0x6f/0x90 [ 27.964463] [] netlink_unicast+0x511/0x750 [ 27.970318] [] ? netlink_unicast+0x43c/0x750 [ 27.976346] [] ? netlink_attachskb+0x680/0x680 [ 27.982551] [] netlink_sendmsg+0x8e8/0xc50 [ 27.988405] [] ? netlink_unicast+0x750/0x750 [ 27.994433] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.000899] [] ? security_socket_sendmsg+0x89/0xb0 [ 28.007452] [] ? netlink_unicast+0x750/0x750 [ 28.013486] [] sock_sendmsg+0xca/0x110 [ 28.018995] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.024764] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.031318] [] ? __lru_cache_add+0x187/0x250 [ 28.037351] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.044424] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.050380] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.057452] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.063568] [] ? __lock_is_held+0xa1/0xf0 [ 28.069333] [] ? __pmd_alloc+0x410/0x410 [ 28.075016] [] ? __fget_light+0x158/0x1e0 executing program [ 28.080781] [] ? __fdget+0x18/0x20 [ 28.085941] [] __sys_sendmsg+0xd6/0x190 [ 28.091535] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.097305] [] ? __do_page_fault+0x5ec/0xd40 [ 28.103334] [] ? __do_page_fault+0x3bd/0xd40 [ 28.109368] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.116177] [] SyS_sendmsg+0x2d/0x50 [ 28.121508] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.130292] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 28.138968] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.144392] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 28.152068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.161401] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 28.169372] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 28.177429] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 28.185399] Call Trace: [ 28.187959] [] dump_stack+0xc1/0x128 [ 28.193293] [] check_preemption_disabled+0x1d4/0x200 [ 28.200014] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.206476] [] ipcomp_init_state+0x188/0x930 [ 28.212516] [] ? __lock_is_held+0xa1/0xf0 [ 28.218286] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.224316] [] __xfrm_init_state+0x3e7/0xb30 [ 28.230344] [] xfrm_add_sa+0x1916/0x2e40 [ 28.236027] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.242836] [] ? nla_parse+0x213/0x260 [ 28.248345] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.255155] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 28.261180] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.267210] [] netlink_rcv_skb+0x13e/0x370 [ 28.273063] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.279090] [] xfrm_netlink_rcv+0x6f/0x90 [ 28.284855] [] netlink_unicast+0x511/0x750 [ 28.290708] [] ? netlink_unicast+0x43c/0x750 [ 28.296733] [] ? netlink_attachskb+0x680/0x680 [ 28.302933] [] netlink_sendmsg+0x8e8/0xc50 [ 28.308785] [] ? netlink_unicast+0x750/0x750 [ 28.314811] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.321272] [] ? security_socket_sendmsg+0x89/0xb0 [ 28.327819] [] ? netlink_unicast+0x750/0x750 [ 28.333845] [] sock_sendmsg+0xca/0x110 [ 28.339353] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.345120] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.351679] [] ? __lru_cache_add+0x187/0x250 [ 28.357707] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.364776] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.370714] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.377780] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.383893] [] ? __lock_is_held+0xa1/0xf0 [ 28.389656] [] ? __pmd_alloc+0x410/0x410 [ 28.395337] [] ? __fget_light+0x158/0x1e0 [ 28.401104] [] ? __fdget+0x18/0x20 [ 28.406260] [] __sys_sendmsg+0xd6/0x190 [ 28.411851] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.417617] [] ? __do_page_fault+0x5ec/0xd40 [ 28.423641] [] ? __do_page_fault+0x3bd/0xd40 executing program [ 28.429668] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.436473] [] SyS_sendmsg+0x2d/0x50 [ 28.441807] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.450780] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 28.459582] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.465035] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 28.472713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.482053] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 28.490025] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 28.497991] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 28.505961] Call Trace: [ 28.508526] [] dump_stack+0xc1/0x128 [ 28.513857] [] check_preemption_disabled+0x1d4/0x200 [ 28.520579] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.527049] [] ipcomp_init_state+0x188/0x930 [ 28.533078] [] ? __lock_is_held+0xa1/0xf0 [ 28.538847] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.544871] [] __xfrm_init_state+0x3e7/0xb30 [ 28.550897] [] xfrm_add_sa+0x1916/0x2e40 [ 28.556577] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.563390] [] ? nla_parse+0x213/0x260 [ 28.568893] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.575698] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 28.581725] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.587753] [] netlink_rcv_skb+0x13e/0x370 [ 28.593605] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.599629] [] xfrm_netlink_rcv+0x6f/0x90 [ 28.605395] [] netlink_unicast+0x511/0x750 [ 28.611250] [] ? netlink_unicast+0x43c/0x750 [ 28.617301] [] ? netlink_attachskb+0x680/0x680 [ 28.623505] [] netlink_sendmsg+0x8e8/0xc50 [ 28.629375] [] ? netlink_unicast+0x750/0x750 [ 28.635406] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.641869] [] ? security_socket_sendmsg+0x89/0xb0 [ 28.648419] [] ? netlink_unicast+0x750/0x750 [ 28.654448] [] sock_sendmsg+0xca/0x110 [ 28.659953] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.665721] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.672269] [] ? __lru_cache_add+0x187/0x250 [ 28.678304] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 28.685384] [] ? _raw_spin_unlock+0x2c/0x50 [ 28.691327] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 28.698395] [] ? handle_mm_fault+0x6ee/0x2530 [ 28.704512] [] ? __lock_is_held+0xa1/0xf0 [ 28.710276] [] ? __pmd_alloc+0x410/0x410 [ 28.715961] [] ? __fget_light+0x158/0x1e0 [ 28.721729] [] ? __fdget+0x18/0x20 [ 28.726887] [] __sys_sendmsg+0xd6/0x190 executing program [ 28.732480] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.738247] [] ? __do_page_fault+0x5ec/0xd40 [ 28.744274] [] ? __do_page_fault+0x3bd/0xd40 [ 28.750308] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.757115] [] SyS_sendmsg+0x2d/0x50 [ 28.762450] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 28.771261] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 28.779958] caller is __this_cpu_preempt_check+0x1c/0x20 [ 28.785409] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 28.793087] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.802414] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 28.810385] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 28.818354] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 28.826320] Call Trace: [ 28.828881] [] dump_stack+0xc1/0x128 [ 28.834215] [] check_preemption_disabled+0x1d4/0x200 [ 28.840936] [] __this_cpu_preempt_check+0x1c/0x20 [ 28.847396] [] ipcomp_init_state+0x188/0x930 [ 28.853423] [] ? __lock_is_held+0xa1/0xf0 [ 28.859193] [] ipcomp4_init_state+0xb0/0x7d0 [ 28.865218] [] __xfrm_init_state+0x3e7/0xb30 [ 28.871242] [] xfrm_add_sa+0x1916/0x2e40 [ 28.876918] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.883730] [] ? nla_parse+0x213/0x260 [ 28.889235] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 28.896045] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 28.902070] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.908099] [] netlink_rcv_skb+0x13e/0x370 [ 28.913951] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 28.919977] [] xfrm_netlink_rcv+0x6f/0x90 [ 28.925739] [] netlink_unicast+0x511/0x750 [ 28.931590] [] ? netlink_unicast+0x43c/0x750 [ 28.937613] [] ? netlink_attachskb+0x680/0x680 [ 28.943811] [] netlink_sendmsg+0x8e8/0xc50 [ 28.949663] [] ? netlink_unicast+0x750/0x750 [ 28.955689] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.962148] [] ? security_socket_sendmsg+0x89/0xb0 [ 28.968693] [] ? netlink_unicast+0x750/0x750 [ 28.974720] [] sock_sendmsg+0xca/0x110 [ 28.980223] [] ___sys_sendmsg+0x6d1/0x7e0 [ 28.985987] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.992536] [] ? __lru_cache_add+0x187/0x250 [ 28.998563] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.005630] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.011567] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.018635] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.024746] [] ? __lock_is_held+0xa1/0xf0 [ 29.030512] [] ? __pmd_alloc+0x410/0x410 [ 29.036192] [] ? __fget_light+0x158/0x1e0 [ 29.041958] [] ? __fdget+0x18/0x20 [ 29.047117] [] __sys_sendmsg+0xd6/0x190 [ 29.052708] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.058474] [] ? __do_page_fault+0x5ec/0xd40 [ 29.064499] [] ? __do_page_fault+0x3bd/0xd40 [ 29.070526] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.077332] [] SyS_sendmsg+0x2d/0x50 executing program [ 29.082661] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.091739] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 29.100414] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.105859] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 29.113534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.122861] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 29.130827] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 29.138800] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 29.146767] Call Trace: [ 29.149329] [] dump_stack+0xc1/0x128 [ 29.154664] [] check_preemption_disabled+0x1d4/0x200 [ 29.161386] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.167849] [] ipcomp_init_state+0x188/0x930 [ 29.173879] [] ? __lock_is_held+0xa1/0xf0 [ 29.179647] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.185672] [] __xfrm_init_state+0x3e7/0xb30 [ 29.191708] [] xfrm_add_sa+0x1916/0x2e40 [ 29.197388] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.204197] [] ? nla_parse+0x213/0x260 [ 29.209702] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.216520] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 29.222545] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.228573] [] netlink_rcv_skb+0x13e/0x370 [ 29.234433] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.240455] [] xfrm_netlink_rcv+0x6f/0x90 [ 29.246219] [] netlink_unicast+0x511/0x750 [ 29.252085] [] ? netlink_unicast+0x43c/0x750 [ 29.258111] [] ? netlink_attachskb+0x680/0x680 [ 29.264313] [] netlink_sendmsg+0x8e8/0xc50 [ 29.270168] [] ? netlink_unicast+0x750/0x750 [ 29.276195] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 29.282655] [] ? security_socket_sendmsg+0x89/0xb0 [ 29.289202] [] ? netlink_unicast+0x750/0x750 [ 29.295228] [] sock_sendmsg+0xca/0x110 [ 29.300735] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.306501] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.313051] [] ? __lru_cache_add+0x187/0x250 [ 29.319081] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.326148] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.332090] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.339159] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.345270] [] ? __lock_is_held+0xa1/0xf0 [ 29.351036] [] ? __pmd_alloc+0x410/0x410 [ 29.356716] [] ? __fget_light+0x158/0x1e0 [ 29.362480] [] ? __fdget+0x18/0x20 [ 29.367638] [] __sys_sendmsg+0xd6/0x190 [ 29.373232] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.379001] [] ? __do_page_fault+0x5ec/0xd40 executing program [ 29.385026] [] ? __do_page_fault+0x3bd/0xd40 [ 29.391052] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.397856] [] SyS_sendmsg+0x2d/0x50 [ 29.403202] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.412078] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 29.420768] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.426215] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 29.433897] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.443227] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 29.451196] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 29.459170] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 29.467139] Call Trace: [ 29.469701] [] dump_stack+0xc1/0x128 [ 29.475035] [] check_preemption_disabled+0x1d4/0x200 [ 29.481755] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.488224] [] ipcomp_init_state+0x188/0x930 [ 29.494256] [] ? __lock_is_held+0xa1/0xf0 [ 29.500024] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.506048] [] __xfrm_init_state+0x3e7/0xb30 [ 29.512073] [] xfrm_add_sa+0x1916/0x2e40 [ 29.517749] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.524558] [] ? nla_parse+0x213/0x260 [ 29.530063] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.536871] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 29.542897] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.548938] [] netlink_rcv_skb+0x13e/0x370 [ 29.554789] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.560818] [] xfrm_netlink_rcv+0x6f/0x90 [ 29.566583] [] netlink_unicast+0x511/0x750 [ 29.572447] [] ? netlink_unicast+0x43c/0x750 [ 29.578472] [] ? netlink_attachskb+0x680/0x680 [ 29.584671] [] netlink_sendmsg+0x8e8/0xc50 [ 29.590521] [] ? netlink_unicast+0x750/0x750 [ 29.596547] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 29.603009] [] ? security_socket_sendmsg+0x89/0xb0 [ 29.609555] [] ? netlink_unicast+0x750/0x750 [ 29.615582] [] sock_sendmsg+0xca/0x110 [ 29.621089] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.626855] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.633418] [] ? __lru_cache_add+0x187/0x250 [ 29.639449] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.646517] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.652460] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.659528] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.665645] [] ? __lock_is_held+0xa1/0xf0 [ 29.671410] [] ? __pmd_alloc+0x410/0x410 [ 29.677089] [] ? __fget_light+0x158/0x1e0 [ 29.682855] [] ? __fdget+0x18/0x20 executing program [ 29.688012] [] __sys_sendmsg+0xd6/0x190 [ 29.693603] [] ? SyS_shutdown+0x1b0/0x1b0 [ 29.699371] [] ? __do_page_fault+0x5ec/0xd40 [ 29.705396] [] ? __do_page_fault+0x3bd/0xd40 [ 29.711427] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.718236] [] SyS_sendmsg+0x2d/0x50 [ 29.723568] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 29.732532] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 29.741219] caller is __this_cpu_preempt_check+0x1c/0x20 [ 29.746689] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 29.754365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.763692] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 29.771665] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 29.779628] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 29.787594] Call Trace: [ 29.790171] [] dump_stack+0xc1/0x128 [ 29.795534] [] check_preemption_disabled+0x1d4/0x200 [ 29.802457] [] __this_cpu_preempt_check+0x1c/0x20 [ 29.808922] [] ipcomp_init_state+0x188/0x930 [ 29.814953] [] ? __lock_is_held+0xa1/0xf0 [ 29.820719] [] ipcomp4_init_state+0xb0/0x7d0 [ 29.826745] [] __xfrm_init_state+0x3e7/0xb30 [ 29.832771] [] xfrm_add_sa+0x1916/0x2e40 [ 29.838448] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.845258] [] ? nla_parse+0x213/0x260 [ 29.850768] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 29.857575] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 29.863603] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.869631] [] netlink_rcv_skb+0x13e/0x370 [ 29.875483] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 29.881507] [] xfrm_netlink_rcv+0x6f/0x90 [ 29.887271] [] netlink_unicast+0x511/0x750 [ 29.893124] [] ? netlink_unicast+0x43c/0x750 [ 29.899148] [] ? netlink_attachskb+0x680/0x680 [ 29.905345] [] netlink_sendmsg+0x8e8/0xc50 [ 29.911195] [] ? netlink_unicast+0x750/0x750 [ 29.917220] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 29.923683] [] ? security_socket_sendmsg+0x89/0xb0 [ 29.930231] [] ? netlink_unicast+0x750/0x750 [ 29.936257] [] sock_sendmsg+0xca/0x110 [ 29.941759] [] ___sys_sendmsg+0x6d1/0x7e0 [ 29.947524] [] ? copy_msghdr_from_user+0x550/0x550 [ 29.954074] [] ? __lru_cache_add+0x187/0x250 [ 29.960105] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 29.967180] [] ? _raw_spin_unlock+0x2c/0x50 [ 29.973124] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 29.980192] [] ? handle_mm_fault+0x6ee/0x2530 [ 29.986306] [] ? __lock_is_held+0xa1/0xf0 [ 29.992072] [] ? __pmd_alloc+0x410/0x410 [ 29.997753] [] ? __fget_light+0x158/0x1e0 [ 30.003516] [] ? __fdget+0x18/0x20 [ 30.008678] [] __sys_sendmsg+0xd6/0x190 [ 30.014270] [] ? SyS_shutdown+0x1b0/0x1b0 [ 30.020038] [] ? __do_page_fault+0x5ec/0xd40 [ 30.026093] [] ? __do_page_fault+0x3bd/0xd40 [ 30.032143] [] ? trace_hardirqs_on_caller+0x38b/0x590 executing program [ 30.038953] [] SyS_sendmsg+0x2d/0x50 [ 30.044374] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 30.054892] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 30.063552] caller is __this_cpu_preempt_check+0x1c/0x20 [ 30.069006] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 30.076686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.086008] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 30.093964] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 30.101931] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 30.109889] Call Trace: [ 30.112453] [] dump_stack+0xc1/0x128 [ 30.117785] [] check_preemption_disabled+0x1d4/0x200 [ 30.124505] [] __this_cpu_preempt_check+0x1c/0x20 [ 30.130973] [] ipcomp_init_state+0x188/0x930 [ 30.136997] [] ? __lock_is_held+0xa1/0xf0 [ 30.142763] [] ipcomp4_init_state+0xb0/0x7d0 [ 30.148790] [] __xfrm_init_state+0x3e7/0xb30 [ 30.154817] [] xfrm_add_sa+0x1916/0x2e40 [ 30.160495] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.167304] [] ? nla_parse+0x213/0x260 [ 30.172811] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.179618] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 30.185646] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.191673] [] netlink_rcv_skb+0x13e/0x370 [ 30.197523] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.203549] [] xfrm_netlink_rcv+0x6f/0x90 [ 30.209312] [] netlink_unicast+0x511/0x750 [ 30.215167] [] ? netlink_unicast+0x43c/0x750 [ 30.221193] [] ? netlink_attachskb+0x680/0x680 [ 30.227390] [] netlink_sendmsg+0x8e8/0xc50 [ 30.233241] [] ? netlink_unicast+0x750/0x750 [ 30.239265] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 30.245724] [] ? security_socket_sendmsg+0x89/0xb0 [ 30.252279] [] ? netlink_unicast+0x750/0x750 [ 30.258308] [] sock_sendmsg+0xca/0x110 [ 30.263813] [] ___sys_sendmsg+0x6d1/0x7e0 [ 30.269576] [] ? copy_msghdr_from_user+0x550/0x550 [ 30.276126] [] ? __lru_cache_add+0x187/0x250 [ 30.282155] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 30.289221] [] ? _raw_spin_unlock+0x2c/0x50 [ 30.295162] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 30.302228] [] ? handle_mm_fault+0x6ee/0x2530 [ 30.308340] [] ? __lock_is_held+0xa1/0xf0 [ 30.314104] [] ? __pmd_alloc+0x410/0x410 [ 30.319782] [] ? __fget_light+0x158/0x1e0 [ 30.325549] [] ? __fdget+0x18/0x20 [ 30.330706] [] __sys_sendmsg+0xd6/0x190 [ 30.336295] [] ? SyS_shutdown+0x1b0/0x1b0 executing program [ 30.342059] [] ? __do_page_fault+0x5ec/0xd40 [ 30.348085] [] ? __do_page_fault+0x3bd/0xd40 [ 30.354110] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.360918] [] SyS_sendmsg+0x2d/0x50 [ 30.366250] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 30.376336] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 30.385018] caller is __this_cpu_preempt_check+0x1c/0x20 [ 30.390443] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 30.398114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.407434] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 30.415397] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 30.423354] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 30.431316] Call Trace: [ 30.433871] [] dump_stack+0xc1/0x128 [ 30.439199] [] check_preemption_disabled+0x1d4/0x200 [ 30.445915] [] __this_cpu_preempt_check+0x1c/0x20 [ 30.452372] [] ipcomp_init_state+0x188/0x930 [ 30.458397] [] ? __lock_is_held+0xa1/0xf0 [ 30.464161] [] ipcomp4_init_state+0xb0/0x7d0 [ 30.470185] [] __xfrm_init_state+0x3e7/0xb30 [ 30.476213] [] xfrm_add_sa+0x1916/0x2e40 [ 30.481895] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.488704] [] ? nla_parse+0x213/0x260 [ 30.494208] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.501014] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 30.507040] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.513065] [] netlink_rcv_skb+0x13e/0x370 [ 30.518916] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.524939] [] xfrm_netlink_rcv+0x6f/0x90 [ 30.530704] [] netlink_unicast+0x511/0x750 [ 30.536554] [] ? netlink_unicast+0x43c/0x750 [ 30.542579] [] ? netlink_attachskb+0x680/0x680 [ 30.548776] [] netlink_sendmsg+0x8e8/0xc50 [ 30.554627] [] ? netlink_unicast+0x750/0x750 [ 30.560650] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 30.567107] [] ? security_socket_sendmsg+0x89/0xb0 [ 30.573652] [] ? netlink_unicast+0x750/0x750 [ 30.579678] [] sock_sendmsg+0xca/0x110 [ 30.585181] [] ___sys_sendmsg+0x6d1/0x7e0 [ 30.590946] [] ? copy_msghdr_from_user+0x550/0x550 [ 30.597492] [] ? __lru_cache_add+0x187/0x250 [ 30.603516] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 30.610580] [] ? _raw_spin_unlock+0x2c/0x50 [ 30.616516] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 30.623579] [] ? handle_mm_fault+0x6ee/0x2530 [ 30.629689] [] ? __lock_is_held+0xa1/0xf0 [ 30.635455] [] ? __pmd_alloc+0x410/0x410 executing program [ 30.641132] [] ? __fget_light+0x158/0x1e0 [ 30.646896] [] ? __fdget+0x18/0x20 [ 30.652050] [] __sys_sendmsg+0xd6/0x190 [ 30.657638] [] ? SyS_shutdown+0x1b0/0x1b0 [ 30.663401] [] ? __do_page_fault+0x5ec/0xd40 [ 30.669424] [] ? __do_page_fault+0x3bd/0xd40 [ 30.675448] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.682252] [] SyS_sendmsg+0x2d/0x50 [ 30.687580] [] entry_SYSCALL_64_fastpath+0x29/0xe8 [ 30.697382] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller295279/3329 [ 30.706055] caller is __this_cpu_preempt_check+0x1c/0x20 [ 30.711473] CPU: 0 PID: 3329 Comm: syzkaller295279 Not tainted 4.9.77-ge12a9c4 #18 [ 30.719145] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.728468] ffff8801c94b7490 ffffffff81d941c9 0000000000000000 ffffffff83c18800 [ 30.736434] ffffffff83f45400 ffff8801caf6b000 0000000000000003 ffff8801c94b74d0 [ 30.744394] ffffffff81dfb794 ffff8801c94b74e8 ffffffff83f45400 dffffc0000000000 [ 30.752351] Call Trace: [ 30.754907] [] dump_stack+0xc1/0x128 [ 30.760236] [] check_preemption_disabled+0x1d4/0x200 [ 30.766958] [] __this_cpu_preempt_check+0x1c/0x20 [ 30.773416] [] ipcomp_init_state+0x188/0x930 [ 30.779442] [] ? __lock_is_held+0xa1/0xf0 [ 30.785207] [] ipcomp4_init_state+0xb0/0x7d0 [ 30.791232] [] __xfrm_init_state+0x3e7/0xb30 [ 30.797256] [] xfrm_add_sa+0x1916/0x2e40 [ 30.802935] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.809739] [] ? nla_parse+0x213/0x260 [ 30.815243] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 30.822051] [] xfrm_user_rcv_msg+0x413/0x6a0 [ 30.828077] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.834102] [] netlink_rcv_skb+0x13e/0x370 [ 30.839952] [] ? xfrm_dump_sa_done+0xe0/0xe0 [ 30.845977] [] xfrm_netlink_rcv+0x6f/0x90 [ 30.851740] [] netlink_unicast+0x511/0x750 [ 30.857596] [] ? netlink_unicast+0x43c/0x750 [ 30.863628] [] ? netlink_attachskb+0x680/0x680 [ 30.869826] [] netlink_sendmsg+0x8e8/0xc50 [ 30.875678] [] ? netlink_unicast+0x750/0x750 [ 30.881704] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 30.888174] [] ? security_socket_sendmsg+0x89/0xb0 [ 30.894726] [] ? netlink_unicast+0x750/0x750 [ 30.900752] [] sock_sendmsg+0xca/0x110 [ 30.906258] [] ___sys_sendmsg+0x6d1/0x7e0 [ 30.912023] [] ? copy_msghdr_from_user+0x550/0x550 [ 30.918569] [] ? __lru_cache_add+0x187/0x250 [ 30.924596] [] ? do_huge_pmd_anonymous_page+0xb05/0x10d0 [ 30.931663] [] ? _raw_spin_unlock+0x2c/0x50 [ 30.937600] [] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0 [ 30.944669] [] ? handle_mm_fault+0x6ee/0x2530 [ 30.950793] [] ? __lock_is_held+0xa1/0xf0 [ 30.956556] [] ? __pmd_alloc+0x410/0x410 [ 30.962234] [] ? __fget_light+0x158/0x1e0 [ 30.967996] [] ? __fdget+0x18/0x20 [ 30.973152] [] __sys_sendmsg+0xd6/0x190 [ 30.978741] [] ? SyS_shutdown+0x1b0/0x1b0 [ 30.984506] [] ? __do_page_fault+0x5ec/0xd40 [ 30.990531] [] ? __do_page_fault+0x3bd/0xd40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 30.996555] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 31.003358] [] SyS_sendmsg+0x2d/0x50 [ 31.008687] [] entry_SYSCALL_64_fastpath+0x29/0xe8 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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