[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting O[ 12.251559] random: sshd: uninitialized urandom read (32 bytes read) penBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 15.859204] random: sshd: uninitialized urandom read (32 bytes read) [ 16.010771] audit: type=1400 audit(1568029456.114:6): avc: denied { map } for pid=1758 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 16.055668] random: sshd: uninitialized urandom read (32 bytes read) [ 16.578367] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts. [ 22.284280] urandom_read: 1 callbacks suppressed [ 22.284284] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program [ 22.383927] audit: type=1400 audit(1568029462.484:7): avc: denied { map } for pid=1770 comm="syz-executor958" path="/root/syz-executor958126311" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 22.394729] netlink: 12 bytes leftover after parsing attributes in process `syz-executor958'. [ 22.452616] netlink: 12 bytes leftover after parsing attributes in process `syz-executor958'. [ 22.462968] ------------[ cut here ]------------ [ 22.468701] WARNING: CPU: 1 PID: 1778 at net/xfrm/xfrm_policy.c:761 xfrm_policy_insert+0x717/0x1000 [ 22.478184] Kernel panic - not syncing: panic_on_warn set ... [ 22.478184] [ 22.486229] CPU: 1 PID: 1778 Comm: syz-executor958 Not tainted 4.14.142+ #0 [ 22.494315] Call Trace: [ 22.496980] dump_stack+0xca/0x134 [ 22.501196] panic+0x1ea/0x3d3 [ 22.504949] ? add_taint.cold+0x16/0x16 [ 22.509009] ? xfrm_policy_insert+0x717/0x1000 [ 22.513591] ? __probe_kernel_read+0x163/0x1c0 [ 22.518177] ? xfrm_policy_insert+0x717/0x1000 [ 22.522985] __warn.cold+0x2f/0x3a [ 22.526619] ? xfrm_policy_insert+0x717/0x1000 [ 22.531336] report_bug+0x20a/0x248 [ 22.535440] do_error_trap+0x1bf/0x2d0 [ 22.540296] ? math_error+0x2d0/0x2d0 [ 22.544567] ? __debug_object_init+0x17d/0x7d0 [ 22.549332] ? __debug_object_init+0x3f2/0x7d0 [ 22.554137] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 22.559294] invalid_op+0x18/0x40 [ 22.562975] RIP: 0010:xfrm_policy_insert+0x717/0x1000 [ 22.568965] RSP: 0018:ffff8881d0ac74c0 EFLAGS: 00010297 [ 22.574945] RAX: ffff8881d2388000 RBX: ffff8881d185d680 RCX: 0000000000000000 [ 22.583656] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881c53dd74c [ 22.591262] RBP: dffffc0000000000 R08: 00000000000006d2 R09: fffffbfff4075af0 [ 22.599649] R10: fffffbfff4075aef R11: ffffffffa03ad77b R12: ffff8881c53dd680 [ 22.607138] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881d185d788 [ 22.614446] xfrm_add_policy+0x21d/0x480 [ 22.618534] ? xfrm_add_acquire+0x9c0/0x9c0 [ 22.623168] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 22.628731] ? nla_parse+0x162/0x220 [ 22.632469] ? xfrm_add_acquire+0x9c0/0x9c0 [ 22.637756] xfrm_user_rcv_msg+0x2ef/0x550 [ 22.642000] ? xfrm_dump_sa_done+0xd0/0xd0 [ 22.646243] ? avc_has_perm+0x143/0x350 [ 22.650503] ? __mutex_lock+0x73f/0x13e0 [ 22.655109] ? xfrm_netlink_rcv+0x5c/0x90 [ 22.659628] ? __netlink_lookup+0x348/0x600 [ 22.664812] netlink_rcv_skb+0x137/0x3a0 [ 22.669538] ? xfrm_dump_sa_done+0xd0/0xd0 [ 22.674734] ? netlink_ack+0x980/0x980 [ 22.679418] ? lock_downgrade+0x5d0/0x5d0 [ 22.684977] xfrm_netlink_rcv+0x6b/0x90 [ 22.690750] netlink_unicast+0x478/0x650 [ 22.695975] ? netlink_sendskb+0x60/0x60 [ 22.700241] netlink_sendmsg+0x66a/0xbe0 [ 22.704399] ? nlmsg_notify+0x170/0x170 [ 22.708719] ? move_addr_to_kernel.part.0+0xf0/0xf0 [ 22.714174] ? nlmsg_notify+0x170/0x170 [ 22.718636] sock_sendmsg+0xb7/0x100 [ 22.722628] ___sys_sendmsg+0x752/0x890 [ 22.726869] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 22.731818] ? mark_held_locks+0xa6/0xf0 [ 22.735963] ? __handle_mm_fault+0xdd0/0x2700 [ 22.740698] ? lock_downgrade+0x5d0/0x5d0 [ 22.745541] ? __lru_cache_add+0x194/0x270 [ 22.751255] ? do_raw_spin_unlock+0x50/0x220 [ 22.756592] ? _raw_spin_unlock+0x29/0x40 [ 22.761033] ? __handle_mm_fault+0x6e4/0x2700 [ 22.766070] ? vm_insert_mixed_mkwrite+0x30/0x30 [ 22.771419] ? __fget_light+0x174/0x200 [ 22.775907] __sys_sendmsg+0xb6/0x150 [ 22.780396] ? SyS_shutdown+0x190/0x190 [ 22.784387] ? lock_downgrade+0x5d0/0x5d0 [ 22.788863] ? __do_page_fault+0x677/0xbb0 [ 22.793479] SyS_sendmsg+0x27/0x40 [ 22.797685] ? __sys_sendmsg+0x150/0x150 [ 22.802265] do_syscall_64+0x19b/0x520 [ 22.806553] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 22.812373] RIP: 0033:0x441819 [ 22.816033] RSP: 002b:00007fffde403198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 22.824053] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441819 [ 22.831888] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 22.839825] RBP: 0000000000005778 R08: 00000000004002c8 R09: 00000000004002c8 [ 22.848199] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402640 [ 22.855825] R13: 00000000004026d0 R14: 0000000000000000 R15: 0000000000000000 [ 22.865200] Kernel Offset: 0x1cc00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) [ 22.876769] Rebooting in 86400 seconds..