[....] Starting enhanced syslogd: rsyslogd[   12.213170] audit: type=1400 audit(1517126531.030:4): avc:  denied  { syslog } for  pid=3178 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 '10.128.0.34' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [   24.053321] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   24.062072] caller is __this_cpu_preempt_check+0x1c/0x20
[   24.067501] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   24.075179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   24.084505]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   24.092487]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   24.100472]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   24.108443] Call Trace:
[   24.111002]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   24.116340]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   24.123076]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   24.129541]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   24.135576]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.141342]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   24.147383]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   24.153413]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   24.159108]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.165922]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   24.171429]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.178251]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   24.184291]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.190320]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   24.196175]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.202203]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   24.207971]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   24.213824]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   24.219857]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   24.226060]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   24.231926]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.237957]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   24.244432]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   24.250980]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.257009]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   24.262529]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   24.268307]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   24.274874]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   24.280918]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   24.287992]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   24.293937]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   24.301021]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   24.307154]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.312921]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   24.318603]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   24.324371]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   24.329531]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   24.335137]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   24.340907]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   24.346935]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
executing program
[   24.352979]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   24.359789]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   24.365143]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   24.375143] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   24.384032] caller is __this_cpu_preempt_check+0x1c/0x20
[   24.389457] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   24.397157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   24.406480]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   24.414447]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   24.422428]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   24.430415] Call Trace:
[   24.432973]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   24.438310]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   24.445033]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   24.451496]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   24.457530]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.463299]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   24.469327]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   24.475357]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   24.481039]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.487850]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   24.493357]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.500168]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   24.506200]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.512246]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   24.518116]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.524164]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   24.529934]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   24.535803]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   24.541834]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   24.548040]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   24.553896]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.559929]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   24.566392]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   24.572942]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.578990]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   24.584510]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   24.590291]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   24.596859]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   24.602891]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   24.609965]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   24.615909]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   24.622988]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   24.629106]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.634888]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   24.640585]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   24.646363]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
executing program
[   24.651522]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   24.657114]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   24.662911]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   24.668939]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   24.674972]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   24.681794]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   24.687130]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   24.697114] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   24.705822] caller is __this_cpu_preempt_check+0x1c/0x20
[   24.711244] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   24.718920] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   24.728245]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   24.736218]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   24.744193]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   24.752171] Call Trace:
[   24.754731]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   24.760064]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   24.766787]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   24.773250]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   24.779294]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.785077]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   24.791112]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   24.797152]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   24.802834]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.809645]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   24.815154]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   24.821982]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   24.828011]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.834043]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   24.839898]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   24.845927]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   24.851708]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   24.857563]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   24.863592]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   24.869795]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   24.875663]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.881691]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   24.888153]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   24.894704]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   24.900747]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   24.906255]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   24.912022]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   24.918574]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   24.924602]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   24.931671]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   24.937627]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   24.944696]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   24.950815]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   24.956583]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   24.962274]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   24.968045]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   24.973211]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   24.978817]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   24.984603]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   24.990631]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   24.996662]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
executing program
[   25.003471]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   25.008806]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   25.018746] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   25.027471] caller is __this_cpu_preempt_check+0x1c/0x20
[   25.032938] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   25.040616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.049945]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   25.057913]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   25.065907]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   25.073899] Call Trace:
[   25.076467]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   25.081809]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   25.088531]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   25.094995]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   25.101022]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.106787]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   25.112816]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   25.118845]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   25.124529]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.131355]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   25.136863]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.143671]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   25.149698]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.155741]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   25.161593]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.167624]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   25.173392]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   25.179260]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   25.185289]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   25.191491]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   25.197354]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.203382]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   25.209841]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   25.216390]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.222431]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   25.227951]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   25.233737]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   25.240303]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   25.246361]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   25.253446]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   25.259386]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   25.266454]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   25.272567]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.278330]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   25.284011]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   25.289775]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   25.294944]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   25.300548]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
executing program
[   25.306316]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   25.312343]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   25.318371]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   25.325180]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   25.330512]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   25.340589] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   25.349298] caller is __this_cpu_preempt_check+0x1c/0x20
[   25.354757] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   25.362435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.371761]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   25.379734]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   25.387705]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   25.395686] Call Trace:
[   25.398245]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   25.403581]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   25.410301]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   25.416761]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   25.422791]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.428557]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   25.434597]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   25.440625]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   25.446306]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.453116]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   25.458638]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.465446]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   25.471472]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.477516]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   25.483377]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.489406]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   25.495190]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   25.501052]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   25.507079]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   25.513278]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   25.519132]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.525162]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   25.531624]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   25.538190]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.544220]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   25.549736]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   25.555516]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   25.562068]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   25.568115]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   25.575186]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   25.581127]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   25.588199]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   25.594313]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.600092]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
executing program
[   25.605774]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   25.611538]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   25.616698]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   25.622311]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   25.628080]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   25.634107]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   25.640139]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   25.646962]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   25.652295]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   25.662213] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   25.670891] caller is __this_cpu_preempt_check+0x1c/0x20
[   25.676349] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   25.684027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   25.693354]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   25.701324]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   25.709290]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   25.717264] Call Trace:
[   25.719822]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   25.725155]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   25.731877]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   25.738342]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   25.744372]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.750140]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   25.756168]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   25.762196]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   25.767877]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.774686]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   25.780193]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   25.787004]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   25.793033]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.799074]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   25.804927]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   25.810952]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   25.816716]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   25.822568]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   25.828599]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   25.834815]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   25.840668]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.846696]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   25.853157]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   25.859703]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   25.865733]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   25.871241]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   25.877010]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   25.883559]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   25.889587]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   25.896657]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   25.902598]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   25.909676]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   25.915791]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   25.921559]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   25.927249]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   25.933018]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   25.938177]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   25.943777]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   25.949543]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   25.955583]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
executing program
[   25.961616]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   25.968426]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   25.973778]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   25.983717] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   25.992411] caller is __this_cpu_preempt_check+0x1c/0x20
[   25.997837] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   26.005532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.014868]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   26.022873]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   26.030861]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   26.038837] Call Trace:
[   26.041398]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   26.046733]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   26.053457]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   26.059923]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   26.065949]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.071717]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   26.077744]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   26.083772]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   26.089451]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.096278]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   26.101786]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.108594]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   26.114624]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.120676]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   26.126546]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.132589]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   26.138353]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   26.144212]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   26.150248]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   26.156460]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   26.162322]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.168352]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   26.174821]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   26.181368]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.187396]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   26.192902]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   26.198679]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   26.205229]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   26.212038]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   26.219113]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   26.225066]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   26.232137]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   26.238994]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.244770]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   26.250460]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   26.256224]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
executing program
[   26.261382]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   26.266974]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   26.272740]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   26.278782]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   26.284822]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   26.291632]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   26.296967]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   26.308819] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   26.317523] caller is __this_cpu_preempt_check+0x1c/0x20
[   26.322976] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   26.330659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.339989]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   26.347958]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   26.355939]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   26.363935] Call Trace:
[   26.366494]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   26.371832]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   26.378554]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   26.385030]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   26.391060]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.396841]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   26.402869]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   26.408897]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   26.414580]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.421402]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   26.426927]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.433745]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   26.439776]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.445809]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   26.451664]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.457692]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   26.463459]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   26.469314]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   26.475342]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   26.481556]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   26.487411]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.493449]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   26.499913]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   26.506464]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.512494]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   26.518001]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   26.523775]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   26.530335]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   26.536367]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   26.543438]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   26.549381]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   26.556453]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   26.562569]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.568345]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   26.574027]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   26.579795]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   26.584958]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   26.590551]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   26.596328]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   26.602363]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   26.608393]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
executing program
[   26.615205]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   26.620544]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   26.630807] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   26.639533] caller is __this_cpu_preempt_check+0x1c/0x20
[   26.645008] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   26.652707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.662037]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   26.670010]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   26.677991]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   26.685965] Call Trace:
[   26.688525]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   26.693860]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   26.700581]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   26.707047]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   26.713079]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.718846]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   26.724876]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   26.730910]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   26.736593]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.743406]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   26.748939]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   26.755749]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   26.761787]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.767818]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   26.773674]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   26.779702]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   26.785481]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   26.791345]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   26.797373]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   26.803576]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   26.809431]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.815465]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   26.821929]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   26.828479]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   26.834506]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   26.840012]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   26.845780]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   26.852329]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   26.858355]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   26.865441]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   26.871382]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   26.878452]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   26.884567]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   26.890333]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   26.896017]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   26.901782]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   26.906944]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
executing program
[   26.912539]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   26.918306]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   26.924335]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   26.932020]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   26.938834]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   26.944168]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   26.954493] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   26.963210] caller is __this_cpu_preempt_check+0x1c/0x20
[   26.968638] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   26.976312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   26.985635]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   26.993612]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   27.001578]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   27.009555] Call Trace:
[   27.012111]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   27.017443]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   27.024166]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   27.030640]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   27.036670]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   27.042438]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   27.048475]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   27.054515]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   27.060197]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   27.067008]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   27.072514]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   27.079321]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   27.085350]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   27.091379]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   27.097234]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   27.103274]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   27.109045]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   27.114900]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   27.120926]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   27.127125]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   27.132978]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   27.139008]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   27.145471]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   27.152019]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   27.158047]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   27.163553]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   27.169320]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   27.175882]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   27.181913]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   27.188987]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   27.194947]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   27.202364]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   27.208492]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   27.214259]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   27.219938]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   27.225704]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   27.230865]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   27.236458]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   27.242226]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   27.248252]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   27.254295]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   27.261104]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
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[   27.266437]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
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[   29.063123] check_preemption_disabled: 778 callbacks suppressed
[   29.063128] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   29.077883] caller is __this_cpu_preempt_check+0x1c/0x20
[   29.083335] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   29.091022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.100356]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   29.108325]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   29.116307]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   29.124282] Call Trace:
[   29.126843]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   29.132177]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   29.138900]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   29.145365]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   29.151405]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.157174]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   29.163213]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   29.169241]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   29.174923]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.181734]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   29.187240]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.194047]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   29.200077]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.206107]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   29.211962]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.217990]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   29.223770]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   29.229635]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   29.235672]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   29.241875]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   29.247731]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.253772]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   29.260235]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   29.266785]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.272813]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   29.278334]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   29.284101]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   29.290664]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   29.296712]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   29.303791]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   29.309735]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   29.316805]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   29.322921]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.328701]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   29.334393]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   29.340160]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   29.345328]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   29.350920]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   29.356701]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
executing program
[   29.362731]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   29.368760]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   29.375576]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   29.380928]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   29.391888] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   29.400599] caller is __this_cpu_preempt_check+0x1c/0x20
[   29.406047] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   29.413730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.423055]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   29.431029]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   29.438994]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   29.446959] Call Trace:
[   29.449517]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   29.454854]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   29.461576]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   29.468039]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   29.474081]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.479849]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   29.485876]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   29.491906]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   29.497600]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.504422]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   29.509941]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.516748]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   29.522772]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.528801]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   29.534655]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.540682]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   29.546455]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   29.552311]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   29.558337]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   29.564537]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   29.570389]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.576417]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   29.582900]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   29.589447]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.595477]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   29.600984]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   29.606753]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   29.613303]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   29.619342]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   29.626411]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   29.632351]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   29.639420]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   29.645534]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.651299]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   29.656982]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
executing program
[   29.662749]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   29.667908]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   29.673501]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   29.679270]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   29.685304]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   29.691343]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   29.698161]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   29.703495]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   29.715244] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   29.723993] caller is __this_cpu_preempt_check+0x1c/0x20
[   29.729427] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   29.737116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.746452]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   29.754440]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   29.762423]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   29.770396] Call Trace:
[   29.772956]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   29.778298]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   29.785030]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   29.791493]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   29.797523]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.803289]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   29.809323]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   29.815350]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   29.821028]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.827836]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   29.833342]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   29.840149]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   29.846177]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.852206]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   29.858061]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   29.864090]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   29.869865]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   29.875726]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   29.881754]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   29.887956]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   29.893811]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.899839]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   29.906301]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   29.912849]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   29.918879]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   29.924398]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   29.930166]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   29.936717]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   29.942747]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   29.949827]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   29.955770]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   29.962840]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   29.968957]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   29.974726]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   29.980415]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   29.986183]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   29.991340]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   29.996936]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   30.002713]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   30.008749]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
executing program
[   30.014790]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   30.021599]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   30.026942]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   30.037952] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   30.046664] caller is __this_cpu_preempt_check+0x1c/0x20
[   30.052128] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   30.059818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.069155]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   30.077129]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   30.085098]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   30.093064] Call Trace:
[   30.095627]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   30.100963]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   30.107700]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   30.114172]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   30.120201]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.125970]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   30.131995]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   30.138032]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   30.143723]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.150541]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   30.156055]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.162863]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   30.168897]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.174936]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   30.180790]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.186819]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   30.192597]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   30.198452]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   30.204488]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   30.210690]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   30.216559]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.222587]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   30.229050]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   30.236355]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.242391]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   30.248079]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   30.253848]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   30.260395]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   30.266424]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   30.273493]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   30.279433]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   30.286511]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   30.292627]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.298393]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   30.304074]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   30.309840]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
executing program
[   30.315009]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   30.320601]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   30.326379]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   30.332407]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   30.338435]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   30.345247]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   30.350581]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   30.360927] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   30.369638] caller is __this_cpu_preempt_check+0x1c/0x20
[   30.375101] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   30.382790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.392118]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   30.400099]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   30.408069]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   30.416042] Call Trace:
[   30.418603]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   30.423939]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   30.430661]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   30.437124]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   30.443154]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.448921]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   30.454958]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   30.460983]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   30.466663]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.473472]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   30.478978]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.485797]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   30.491837]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.497877]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   30.503732]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.509768]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   30.515547]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   30.521400]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   30.527440]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   30.533642]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   30.539497]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.545528]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   30.551995]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   30.558558]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.564586]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   30.570092]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   30.575862]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   30.582414]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   30.588442]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   30.595512]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   30.601453]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   30.608522]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   30.614641]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.620405]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   30.626085]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   30.631852]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   30.637014]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   30.642610]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   30.648385]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   30.654420]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   30.660451]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
executing program
[   30.667368]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   30.672701]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   30.683079] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   30.691770] caller is __this_cpu_preempt_check+0x1c/0x20
[   30.697242] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   30.704933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   30.714277]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   30.722298]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   30.730302]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   30.738304] Call Trace:
[   30.740887]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   30.746261]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   30.752996]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   30.759469]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   30.765496]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.771262]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   30.777375]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   30.783404]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   30.789085]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.795904]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   30.801411]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   30.808230]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   30.814256]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.820298]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   30.826152]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   30.832188]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   30.837958]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   30.843811]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   30.849840]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   30.856054]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   30.861914]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.867941]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   30.874402]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   30.880959]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   30.886986]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   30.892494]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   30.898261]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   30.904814]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   30.910840]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   30.917924]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   30.923869]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   30.930938]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   30.937054]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   30.942821]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   30.948499]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   30.954281]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   30.959440]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   30.965031]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
executing program
[   30.970798]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   30.976836]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   30.982881]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   30.989691]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   30.995024]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   31.005332] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   31.014028] caller is __this_cpu_preempt_check+0x1c/0x20
[   31.019452] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   31.027126] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.036450]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   31.044427]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   31.052391]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   31.060355] Call Trace:
[   31.062915]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   31.068248]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   31.074970]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   31.081442]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   31.087471]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.093238]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   31.099266]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   31.105293]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   31.110973]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.117787]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   31.123294]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.130104]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   31.136132]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.142160]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   31.148015]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.154056]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   31.159821]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   31.165681]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   31.171719]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   31.177919]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   31.183771]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.189798]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   31.196259]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   31.202810]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.208841]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   31.214349]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   31.220118]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   31.226667]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   31.233306]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   31.240377]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   31.246324]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   31.253393]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   31.259506]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.265271]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   31.270951]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   31.276717]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   31.281884]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   31.287486]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   31.293252]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   31.299290]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   31.305319]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   31.312128]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
executing program
[   31.317460]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   31.327702] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   31.336404] caller is __this_cpu_preempt_check+0x1c/0x20
[   31.341839] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   31.349515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.358843]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   31.366813]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   31.374784]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   31.382762] Call Trace:
[   31.385320]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   31.390655]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   31.397376]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   31.403840]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   31.409870]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.415638]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   31.421665]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   31.427705]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   31.433385]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.440196]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   31.445702]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.452511]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   31.458549]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.464586]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   31.470440]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.476467]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   31.482235]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   31.488088]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   31.494115]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   31.500324]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   31.506179]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.512209]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   31.518679]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   31.525227]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.531256]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   31.536761]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   31.542537]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   31.549089]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   31.555131]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   31.562202]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   31.568142]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   31.575210]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   31.581332]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.587100]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   31.592779]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   31.598554]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   31.603713]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   31.609305]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   31.615093]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
executing program
[   31.621131]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   31.627158]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   31.633968]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   31.639310]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   31.649621] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   31.658324] caller is __this_cpu_preempt_check+0x1c/0x20
[   31.663784] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   31.671478] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   31.680806]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   31.688781]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   31.696761]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   31.704727] Call Trace:
[   31.707286]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   31.712623]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   31.719345]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   31.725809]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   31.731854]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.737622]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   31.743650]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   31.749679]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   31.755359]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.762177]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   31.767683]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   31.774492]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   31.780517]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.786554]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   31.792411]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   31.798440]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   31.804208]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   31.810074]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   31.816101]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   31.822301]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   31.828154]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.834191]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   31.840653]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   31.847202]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   31.853231]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   31.858738]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   31.864506]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   31.871053]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   31.877083]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   31.884154]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   31.890096]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   31.897165]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   31.903289]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   31.909056]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   31.914737]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   31.920503]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
executing program
[   31.925664]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   31.931257]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   31.937035]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   31.943064]  [<ffffffff810de43d>] ? __do_page_fault+0x3bd/0xd40
[   31.949093]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   31.955902]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   31.961249]  [<ffffffff838b2c6e>] entry_SYSCALL_64_fastpath+0x29/0xe8
[   31.971463] BUG: using __this_cpu_read() in preemptible [00000000] code: syzkaller960815/3334
[   31.980168] caller is __this_cpu_preempt_check+0x1c/0x20
[   31.985628] CPU: 0 PID: 3334 Comm: syzkaller960815 Not tainted 4.9.78-g68d447c #23
[   31.993312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.002638]  ffff8801cb05f490 ffffffff81d943a9 0000000000000000 ffffffff83c18800
[   32.010611]  ffffffff83f45480 ffff8801ca454800 0000000000000003 ffff8801cb05f4d0
[   32.018592]  ffffffff81dfb974 ffff8801cb05f4e8 ffffffff83f45480 dffffc0000000000
[   32.026558] Call Trace:
[   32.029117]  [<ffffffff81d943a9>] dump_stack+0xc1/0x128
[   32.034452]  [<ffffffff81dfb974>] check_preemption_disabled+0x1d4/0x200
[   32.041173]  [<ffffffff81dfb9dc>] __this_cpu_preempt_check+0x1c/0x20
[   32.047635]  [<ffffffff833fc778>] ipcomp_init_state+0x188/0x930
[   32.053665]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   32.059433]  [<ffffffff83368b90>] ipcomp4_init_state+0xb0/0x7d0
[   32.065461]  [<ffffffff833dae67>] __xfrm_init_state+0x3e7/0xb30
[   32.071521]  [<ffffffff833f9fc6>] xfrm_add_sa+0x1916/0x2e40
[   32.077213]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   32.084024]  [<ffffffff81e3fc63>] ? nla_parse+0x213/0x260
[   32.089530]  [<ffffffff833f86b0>] ? xfrm_send_state_notify+0x17d0/0x17d0
[   32.096336]  [<ffffffff833ea613>] xfrm_user_rcv_msg+0x413/0x6a0
[   32.102361]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   32.108389]  [<ffffffff8309513e>] netlink_rcv_skb+0x13e/0x370
[   32.114242]  [<ffffffff833ea200>] ? xfrm_dump_sa_done+0xe0/0xe0
[   32.120278]  [<ffffffff833e6b0f>] xfrm_netlink_rcv+0x6f/0x90
[   32.126046]  [<ffffffff83093cc1>] netlink_unicast+0x511/0x750
[   32.131908]  [<ffffffff83093bec>] ? netlink_unicast+0x43c/0x750
[   32.137935]  [<ffffffff830937b0>] ? netlink_attachskb+0x680/0x680
[   32.144144]  [<ffffffff830947e8>] netlink_sendmsg+0x8e8/0xc50
[   32.149998]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   32.156026]  [<ffffffff81bf6e6f>] ? selinux_socket_sendmsg+0x3f/0x50
[   32.162488]  [<ffffffff81bd5959>] ? security_socket_sendmsg+0x89/0xb0
[   32.169050]  [<ffffffff83093f00>] ? netlink_unicast+0x750/0x750
[   32.175078]  [<ffffffff82ed7baa>] sock_sendmsg+0xca/0x110
[   32.180594]  [<ffffffff82ed97a1>] ___sys_sendmsg+0x6d1/0x7e0
[   32.186374]  [<ffffffff82ed90d0>] ? copy_msghdr_from_user+0x550/0x550
[   32.192926]  [<ffffffff81465e67>] ? __lru_cache_add+0x187/0x250
[   32.198956]  [<ffffffff81549415>] ? do_huge_pmd_anonymous_page+0xb05/0x10d0
[   32.206026]  [<ffffffff838b237c>] ? _raw_spin_unlock+0x2c/0x50
[   32.211967]  [<ffffffff81548be4>] ? do_huge_pmd_anonymous_page+0x2d4/0x10d0
[   32.219035]  [<ffffffff814cf05e>] ? handle_mm_fault+0x6ee/0x2530
[   32.225162]  [<ffffffff81234af1>] ? __lock_is_held+0xa1/0xf0
[   32.230927]  [<ffffffff814ce970>] ? __pmd_alloc+0x410/0x410
[   32.237436]  [<ffffffff815d1148>] ? __fget_light+0x158/0x1e0
[   32.243202]  [<ffffffff815d11e8>] ? __fdget+0x18/0x20
[   32.248360]  [<ffffffff82edb7d6>] __sys_sendmsg+0xd6/0x190
[   32.253964]  [<ffffffff82edb700>] ? SyS_shutdown+0x1b0/0x1b0
[   32.259732]  [<ffffffff810de66c>] ? __do_page_fault+0x5ec/0xd40
[   32.265761]  [<ffffffff810de43d>] ? __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
[   32.271805]  [<ffffffff8123b5eb>] ? trace_hardirqs_on_caller+0x38b/0x590
[   32.278612]  [<ffffffff82edb8bd>] SyS_sendmsg+0x2d/0x50
[   32.283945]  [<ffffffff838b2c6e>] 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
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