[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 33.078445] random: sshd: uninitialized urandom read (32 bytes read) [ 33.338577] kauditd_printk_skb: 9 callbacks suppressed [ 33.338585] audit: type=1400 audit(1572039078.275:35): avc: denied { map } for pid=6880 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 [ 33.380544] random: sshd: uninitialized urandom read (32 bytes read) [ 33.905596] random: sshd: uninitialized urandom read (32 bytes read) [ 34.082894] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.62' (ECDSA) to the list of known hosts. [ 39.586941] random: sshd: uninitialized urandom read (32 bytes read) [ 39.698875] audit: type=1400 audit(1572039084.635:36): avc: denied { map } for pid=6894 comm="syz-executor396" path="/root/syz-executor396406444" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 39.930871] IPVS: ftp: loaded support on port[0] = 21 executing program [ 40.770107] kasan: CONFIG_KASAN_INLINE enabled [ 40.774706] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 40.782047] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 40.788252] Modules linked in: [ 40.791422] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.150 #0 [ 40.797710] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.807040] task: ffff8880a9d1c340 task.stack: ffff8880a9d28000 [ 40.813080] RIP: 0010:__lock_acquire+0x1ba/0x4620 [ 40.817894] RSP: 0018:ffff8880aef07b30 EFLAGS: 00010006 [ 40.823243] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 40.830488] RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000001 [ 40.837741] RBP: ffff8880aef07cd8 R08: 0000000000000001 R09: 0000000000000000 [ 40.844995] R10: 0000000000000000 R11: ffff8880a9d1c340 R12: 0000000000000018 [ 40.852240] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 [ 40.859573] FS: 0000000000000000(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 40.867785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 40.873646] CR2: 000000000049f450 CR3: 000000008bfa4000 CR4: 00000000001406e0 [ 40.880896] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 40.888144] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 40.895402] Call Trace: [ 40.897960] [ 40.900099] ? trace_hardirqs_on+0x10/0x10 [ 40.904334] ? apic_timer_interrupt+0x96/0xa0 [ 40.908801] ? native_safe_halt+0xe/0x10 [ 40.912848] ? trace_hardirqs_on+0x10/0x10 [ 40.917067] ? debug_object_deactivate+0x1cc/0x350 [ 40.921972] ? find_held_lock+0x35/0x130 [ 40.926011] ? trace_hardirqs_on+0x10/0x10 [ 40.930298] lock_acquire+0x16f/0x430 [ 40.934090] ? ip6_dst_destroy+0x104/0x3b0 [ 40.938311] _raw_spin_lock_bh+0x33/0x50 [ 40.942351] ? ip6_dst_destroy+0x104/0x3b0 [ 40.946581] ip6_dst_destroy+0x104/0x3b0 [ 40.950617] ? percpu_counter_add_batch+0x112/0x160 [ 40.955606] ? rt6_mtu_change_route+0x670/0x670 [ 40.960259] dst_destroy+0xc4/0x330 [ 40.963864] ? dst_destroy+0x330/0x330 [ 40.967727] dst_destroy_rcu+0x16/0x20 [ 40.971589] rcu_process_callbacks+0x7b8/0x12b0 [ 40.976233] ? call_rcu_sched+0x20/0x20 [ 40.980183] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 40.985615] __do_softirq+0x244/0x9a0 [ 40.989387] ? sched_clock+0x2e/0x50 [ 40.993081] irq_exit+0x160/0x1b0 [ 40.996516] smp_apic_timer_interrupt+0x146/0x5e0 [ 41.001331] apic_timer_interrupt+0x96/0xa0 [ 41.005625] [ 41.007838] RIP: 0010:native_safe_halt+0xe/0x10 [ 41.012477] RSP: 0018:ffff8880a9d2fe70 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 [ 41.020158] RAX: 1ffffffff0ee2a84 RBX: ffff8880a9d1c340 RCX: 0000000000000000 [ 41.027415] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880a9d1cbbc [ 41.034661] RBP: ffff8880a9d2fe98 R08: 1ffffffff104ab01 R09: 0000000000000000 [ 41.041915] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87715410 [ 41.049341] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a9d1c340 [ 41.056594] ? default_idle+0x4c/0x370 [ 41.060455] arch_cpu_idle+0xa/0x10 [ 41.064053] default_idle_call+0x36/0x90 [ 41.068096] do_idle+0x262/0x3d0 [ 41.071445] cpu_startup_entry+0x1b/0x20 [ 41.075480] start_secondary+0x346/0x4b0 [ 41.079513] secondary_startup_64+0xa5/0xb0 [ 41.083807] Code: 00 c7 40 18 00 00 00 00 48 8d 65 d8 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 ac 2e 00 00 49 81 3c 24 a0 91 5d 88 0f 84 43 [ 41.102849] RIP: __lock_acquire+0x1ba/0x4620 RSP: ffff8880aef07b30 [ 41.109145] ---[ end trace 7267a310ef0399eb ]--- [ 41.113873] Kernel panic - not syncing: Fatal exception in interrupt [ 41.121773] Kernel Offset: disabled [ 41.125389] Rebooting in 86400 seconds..