[ 16.402246] random: sshd: uninitialized urandom read (32 bytes read, 33 bits of entropy available) [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 20.618518] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 20.924589] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 21.835633] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available) [ 22.012276] random: sshd: uninitialized urandom read (32 bytes read, 123 bits of entropy available) [ 25.952888] random: nonblocking pool is initialized Warning: Permanently added '10.128.15.238' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program [ 27.635579] IPVS: Creating netns size=2552 id=1 [ 27.705460] ------------[ cut here ]------------ [ 27.711081] WARNING: CPU: 0 PID: 3342 at crypto/algapi.c:343 crypto_wait_for_test+0xbb/0xd0() [ 27.721466] Kernel panic - not syncing: panic_on_warn set ... [ 27.721466] [ 27.728910] CPU: 0 PID: 3342 Comm: syzkaller057576 Not tainted 4.4.110-gd891a62 #19 [ 27.736679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.746006] 0000000000000000 8b02bd668cf6cfa6 ffff8801cfceef00 ffffffff81d04e3d [ 27.753961] ffffffff83842f60 ffff8801cfceefd8 ffffffff839dacc0 0000000000000009 [ 27.761911] 0000000000000157 ffff8801cfceefc8 ffffffff814197fa 0000000041b58ab3 [ 27.769858] Call Trace: [ 27.772417] [] dump_stack+0xc1/0x124 [ 27.777752] [] panic+0x1aa/0x388 [ 27.782734] [] ? percpu_up_read.constprop.45+0xe1/0xe1 [ 27.789629] [] ? pm_qos_get_value.part.4+0xb/0xb [ 27.796011] [] ? warn_slowpath_common+0x10a/0x140 [ 27.802471] [] warn_slowpath_common+0x125/0x140 [ 27.808760] [] ? crypto_wait_for_test+0xbb/0xd0 [ 27.815046] [] warn_slowpath_null+0x29/0x30 [ 27.820990] [] crypto_wait_for_test+0xbb/0xd0 [ 27.827110] [] crypto_register_instance+0x1f7/0x2d0 [ 27.833746] [] crypto_givcipher_default+0x483/0x5d0 [ 27.840380] [] ? setkey+0x260/0x260 [ 27.845636] [] ? crypto_larval_lookup.part.8+0x89/0x230 [ 27.852618] [] crypto_lookup_skcipher+0x1a9/0x2a0 [ 27.859078] [] crypto_alloc_ablkcipher+0x5e/0x190 [ 27.865539] [] common_rfc4106_set_key+0x118/0x630 [ 27.872003] [] ? kasan_unpoison_shadow+0x35/0x50 [ 27.878379] [] crypto_aead_setkey+0xaa/0x1c0 [ 27.884415] [] cryptd_aead_setkey+0x41/0x50 [ 27.890357] [] crypto_aead_setkey+0x162/0x1c0 [ 27.896473] [] rfc4106_set_key+0x41/0x50 [ 27.902152] [] crypto_aead_setkey+0xaa/0x1c0 [ 27.908175] [] ? crypto_larval_lookup+0x50/0x50 [ 27.914468] [] aead_geniv_setkey+0x47/0x60 [ 27.920332] [] crypto_aead_setkey+0xaa/0x1c0 [ 27.926361] [] esp6_init_state+0x20a/0xf50 [ 27.932208] [] ? esp6_destroy+0x60/0x60 [ 27.937811] [] ? __xfrm_init_state+0x363/0xb30 [ 27.944012] [] __xfrm_init_state+0x3e7/0xb30 [ 27.950044] [] xfrm_add_sa+0x1916/0x2e40 [ 27.955725] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.962534] [] ? nla_parse+0x213/0x260 [ 27.968036] [] ? xfrm_send_state_notify+0x17d0/0x17d0 [ 27.974842] [] xfrm_user_rcv_msg+0x41c/0x6b0 [ 27.980865] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 27.986899] [] ? __lock_acquire+0xb5f/0x4b50 [ 27.992927] [] ? avc_has_perm_noaudit+0x460/0x460 [ 27.999389] [] netlink_rcv_skb+0x13e/0x370 [ 28.005240] [] ? xfrm_dump_sa_done+0xa0/0xa0 [ 28.011264] [] xfrm_netlink_rcv+0x6f/0x90 [ 28.017038] [] netlink_unicast+0x522/0x760 [ 28.022890] [] ? netlink_unicast+0x44f/0x760 [ 28.028914] [] ? netlink_attachskb+0x6c0/0x6c0 [ 28.035119] [] netlink_sendmsg+0x8e8/0xc50 [ 28.040979] [] ? netlink_unicast+0x760/0x760 [ 28.047003] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 28.053464] [] ? security_socket_sendmsg+0x89/0xb0 [ 28.060011] [] ? netlink_unicast+0x760/0x760 [ 28.066042] [] sock_sendmsg+0xca/0x110 [ 28.071552] [] ___sys_sendmsg+0x6c1/0x7c0 [ 28.077315] [] ? copy_msghdr_from_user+0x550/0x550 [ 28.083865] [] ? __alloc_pages_direct_compact+0x250/0x250 [ 28.091020] [] ? do_futex+0x3e3/0x1670 [ 28.096524] [] ? __fget+0x232/0x3b0 [ 28.101769] [] ? __fget+0x47/0x3b0 [ 28.106931] [] ? __fget_light+0xa1/0x1e0 [ 28.112621] [] ? __fdget+0x18/0x20 [ 28.117789] [] __sys_sendmsg+0xd3/0x190 [ 28.123390] [] ? SyS_shutdown+0x1b0/0x1b0 [ 28.129165] [] ? __do_page_fault+0x380/0xa00 [ 28.135191] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 28.141998] [] SyS_sendmsg+0x2d/0x50 [ 28.147334] [] entry_SYSCALL_64_fastpath+0x16/0x92 [ 28.154500] Dumping ftrace buffer: [ 28.158075] (ftrace buffer empty) [ 28.161751] Kernel Offset: disabled [ 28.165364] Rebooting in 86400 seconds..