[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.569679] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 36.032020] random: sshd: uninitialized urandom read (32 bytes read, 44 bits of entropy available) [ 36.345139] random: sshd: uninitialized urandom read (32 bytes read, 44 bits of entropy available) [ 36.835036] random: sshd: uninitialized urandom read (32 bytes read, 95 bits of entropy available) [ 51.807727] random: sshd: uninitialized urandom read (32 bytes read, 106 bits of entropy available) Warning: Permanently added 'ci-android-44-kasan-gce-2,10.128.0.14' (ECDSA) to the list of known hosts. [ 57.200163] random: sshd: uninitialized urandom read (32 bytes read, 110 bits of entropy available) executing program [ 57.284993] ------------[ cut here ]------------ [ 57.289775] WARNING: CPU: 1 PID: 3332 at net/xfrm/xfrm_user.c:2172 xfrm_add_acquire+0x95e/0xcb0() [ 57.299270] BAD policy passed [ 57.302420] Kernel panic - not syncing: panic_on_warn set ... [ 57.302420] [ 57.309748] CPU: 1 PID: 3332 Comm: syzkaller445697 Not tainted 4.4.104-ged884eb #2 [ 57.317426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 57.326755] 0000000000000000 63a565f30b1608e5 ffff8800b7e7f3b8 ffffffff81cc9b0f [ 57.334702] ffffffff83842ac0 ffff8800b7e7f490 ffff8800b7e7f480 ffffffff813fc616 [ 57.342649] 0000000041b58ab3 ffffffff83fa5588 ffffffff813fc48f 0000000000000011 [ 57.350599] Call Trace: [ 57.353151] [] dump_stack+0x8e/0xcf [ 57.358391] [] panic+0x187/0x2f1 [ 57.363372] [] ? percpu_up_read.constprop.46+0xc3/0xc3 [ 57.370272] [] warn_slowpath_common+0x108/0x120 [ 57.376565] [] ? xfrm_add_acquire+0x95e/0xcb0 [ 57.382674] [] warn_slowpath_fmt+0xa7/0xf0 [ 57.388521] [] ? warn_slowpath_common+0x120/0x120 [ 57.394975] [] xfrm_add_acquire+0x95e/0xcb0 [ 57.400912] [] ? mark_lock+0x45e/0xfd0 [ 57.406413] [] ? check_usage_forwards+0x310/0x310 [ 57.412867] [] ? selinux_capable+0xd/0x10 [ 57.418625] [] ? xfrm_policy_construct+0x740/0x740 [ 57.425168] [] ? memset+0x28/0x30 [ 57.430247] [] ? nla_parse+0x31/0x230 [ 57.435668] [] xfrm_user_rcv_msg+0x398/0x730 [ 57.441688] [] ? xfrm_dump_sa_done+0x90/0x90 [ 57.447718] [] ? __lock_acquire+0xb5f/0x4b50 [ 57.453739] [] ? avc_has_perm_noaudit+0x420/0x420 [ 57.460202] [] ? __ww_mutex_lock+0x14f0/0x14f0 [ 57.466396] [] netlink_rcv_skb+0x11f/0x330 [ 57.472251] [] ? netlink_unicast+0x3ed/0x760 [ 57.478270] [] ? xfrm_dump_sa_done+0x90/0x90 [ 57.484298] [] xfrm_netlink_rcv+0x69/0x90 [ 57.490066] [] netlink_unicast+0x4c5/0x760 [ 57.495911] [] ? netlink_unicast+0x3ed/0x760 [ 57.501935] [] ? netlink_attachskb+0x810/0x810 [ 57.508132] [] netlink_sendmsg+0x832/0xbc0 [ 57.513979] [] ? netlink_unicast+0x760/0x760 [ 57.520000] [] ? _raw_spin_unlock+0x2c/0x50 [ 57.525934] [] ? selinux_socket_sendmsg+0x3a/0x50 [ 57.532387] [] ? netlink_unicast+0x760/0x760 [ 57.538407] [] sock_sendmsg+0xb5/0xf0 [ 57.543818] [] ___sys_sendmsg+0x66d/0x7d0 [ 57.549576] [] ? copy_msghdr_from_user+0x590/0x590 [ 57.556119] [] ? do_huge_pmd_anonymous_page+0x487/0x980 [ 57.563094] [] ? _raw_spin_unlock+0x2c/0x50 [ 57.569026] [] ? do_huge_pmd_anonymous_page+0x487/0x980 [ 57.576008] [] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 57.582723] [] ? __fget_light+0x12f/0x1b0 [ 57.588481] [] ? __fdget+0xe/0x10 [ 57.593544] [] __sys_sendmsg+0xc3/0x160 [ 57.599131] [] ? SyS_shutdown+0x190/0x190 [ 57.604892] [] ? __do_page_fault+0x2f0/0x910 [ 57.610917] [] ? trace_hardirqs_on_thunk+0x17/0x19 [ 57.617835] [] SyS_sendmsg+0xd/0x20 [ 57.623078] [] entry_SYSCALL_64_fastpath+0x16/0x76 [ 57.630038] Dumping ftrace buffer: [ 57.633575] (ftrace buffer empty) [ 57.637249] Kernel Offset: disabled [ 57.640859] Rebooting in 86400 seconds..