[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 16.593518] random: sshd: uninitialized urandom read (32 bytes read, 31 bits of entropy available) [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 21.409121] random: sshd: uninitialized urandom read (32 bytes read, 36 bits of entropy available) [ 21.881685] random: sshd: uninitialized urandom read (32 bytes read, 37 bits of entropy available) [ 22.636838] random: sshd: uninitialized urandom read (32 bytes read, 92 bits of entropy available) [ 29.272856] random: sshd: uninitialized urandom read (32 bytes read, 101 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-1,10.128.0.49' (ECDSA) to the list of known hosts. [ 34.675066] random: sshd: uninitialized urandom read (32 bytes read, 109 bits of entropy available) executing program [ 34.770277] netlink: 3816 bytes leftover after parsing attributes in process `syzkaller427698'. [ 34.779936] ------------[ cut here ]------------ [ 34.784698] WARNING: CPU: 0 PID: 3325 at net/xfrm/xfrm_user.c:2172 xfrm_add_acquire+0x97f/0xd20() [ 34.793687] BAD policy passed [ 34.797352] Kernel panic - not syncing: panic_on_warn set ... [ 34.797352] [ 34.804702] CPU: 0 PID: 3325 Comm: syzkaller427698 Not tainted 4.4.107-g610c835 #12 [ 34.812483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.821807] 0000000000000000 63d16c5f83f9a6a9 ffff8801d0d8f390 ffffffff81d0457d [ 34.829764] ffffffff838429a0 ffff8801d0d8f468 ffffffff83d09540 0000000000000009 [ 34.837716] 000000000000087c ffff8801d0d8f458 ffffffff8141774a 0000000041b58ab3 [ 34.845671] Call Trace: [ 34.848241] [] dump_stack+0xc1/0x124 [ 34.853574] [] panic+0x1aa/0x388 [ 34.858570] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 34.865465] [] ? warn_slowpath_common+0x10a/0x140 [ 34.871931] [] warn_slowpath_common+0x125/0x140 [ 34.878239] [] ? xfrm_add_acquire+0x97f/0xd20 [ 34.884348] [] warn_slowpath_fmt+0xc1/0x110 [ 34.890292] [] ? warn_slowpath_common+0x140/0x140 [ 34.896853] [] ? __raw_spin_lock_init+0x2d/0x100 [ 34.903235] [] ? xfrm_add_acquire+0x967/0xd20 [ 34.909347] [] xfrm_add_acquire+0x97f/0xd20 [ 34.915286] [] ? vprintk+0x28/0x30 [ 34.920456] [] ? vprintk_default+0x1d/0x30 [ 34.926319] [] ? printk+0xb7/0xe2 [ 34.931391] [] ? pm_qos_get_value.part.4+0xb/0xb [ 34.937765] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 34.944600] [] ? xfrm_policy_construct+0x780/0x780 [ 34.951149] [] ? nla_parse+0x213/0x260 [ 34.956652] [] ? xfrm_policy_construct+0x780/0x780 [ 34.963206] [] xfrm_user_rcv_msg+0x41c/0x6b0 [ 34.969240] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 34.975264] [] ? __lock_acquire+0xb5f/0x4b50 [ 34.981386] [] ? avc_has_perm_noaudit+0x460/0x460 [ 34.987848] [] netlink_rcv_skb+0x13e/0x370 [ 34.993698] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 34.999735] [] xfrm_netlink_rcv+0x6f/0x90 [ 35.005515] [] netlink_unicast+0x522/0x760 [ 35.011380] [] ? netlink_unicast+0x44f/0x760 [ 35.017405] [] ? netlink_attachskb+0x6c0/0x6c0 [ 35.023610] [] netlink_sendmsg+0x8e8/0xc50 [ 35.029465] [] ? netlink_unicast+0x760/0x760 [ 35.035490] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 35.041951] [] ? security_socket_sendmsg+0x89/0xb0 [ 35.048505] [] ? netlink_unicast+0x760/0x760 [ 35.054529] [] sock_sendmsg+0xca/0x110 [ 35.060030] [] ___sys_sendmsg+0x6c1/0x7c0 [ 35.065887] [] ? copy_msghdr_from_user+0x550/0x550 [ 35.072438] [] ? __alloc_pages_direct_compact+0x250/0x250 [ 35.079680] [] ? check_preemption_disabled+0x3b/0x200 [ 35.086487] [] ? handle_mm_fault+0xbf5/0x3190 [ 35.092607] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 35.099760] [] ? __fget_light+0xa1/0x1e0 [ 35.105437] [] ? __fdget+0x18/0x20 [ 35.110597] [] __sys_sendmsg+0xd3/0x190 [ 35.116186] [] ? SyS_shutdown+0x1b0/0x1b0 [ 35.121965] [] ? __do_page_fault+0x380/0xa00 [ 35.127994] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 35.134800] [] SyS_sendmsg+0x2d/0x50 [ 35.140132] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 35.147369] Dumping ftrace buffer: [ 35.150964] (ftrace buffer empty) [ 35.154654] Kernel Offset: disabled [ 35.158276] Rebooting in 86400 seconds..