INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-6,10.128.0.29' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 47.766069] kasan: CONFIG_KASAN_INLINE enabled [ 47.766813] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.768039] general protection fault: 0000 [#1] SMP KASAN [ 47.768798] Dumping ftrace buffer: [ 47.769295] (ftrace buffer empty) [ 47.769823] Modules linked in: [ 47.770258] CPU: 0 PID: 4014 Comm: syzkaller291471 Not tainted 4.14.0-next-20171124+ #51 [ 47.771330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.772549] task: ffff8801cbca6040 task.stack: ffff8801c79d8000 [ 47.773351] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 47.774058] RSP: 0018:ffff8801c79df5b0 EFLAGS: 00010246 [ 47.774765] RAX: dffffc0000000000 RBX: 00000000ef9ecba1 RCX: ffffffff8226cffb [ 47.775717] RDX: 0000000000000000 RSI: ffff8801c7905e00 RDI: ffff8801c79df64c [ 47.776721] RBP: ffff8801c79df7d0 R08: ffffed0038fb461c R09: ffff8801c7da30c0 [ 47.777672] R10: ffff8801c79df7f0 R11: ffffed0038fb461b R12: 0000000000000000 [ 47.778623] R13: 0000000000000000 R14: 000000005c3d10a6 R15: dffffc0000000000 [ 47.779616] FS: 0000000001fb4880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 47.780718] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.781510] CR2: 0000000020216000 CR3: 00000001c7825000 CR4: 00000000001406f0 [ 47.782463] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.783415] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.784366] Call Trace: [ 47.784776] ? crypto_chacha20_setkey+0xc0/0xc0 [ 47.785432] ? __kmalloc+0x162/0x760 [ 47.785942] ? sock_kmalloc+0x112/0x190 [ 47.786473] ? skcipher_recvmsg+0x1e6/0xf30 [ 47.790756] ? skcipher_recvmsg_nokey+0x60/0x80 [ 47.795387] ? sock_recvmsg+0xc9/0x110 [ 47.799238] ? ___sys_recvmsg+0x29b/0x630 [ 47.803350] ? __sys_recvmsg+0xe2/0x210 [ 47.807289] ? SyS_recvmsg+0x2d/0x50 [ 47.810969] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 47.815867] ? mark_held_locks+0xb2/0x100 [ 47.819980] ? retint_kernel+0x10/0x10 [ 47.823837] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 47.828129] chacha20_simd+0xe4/0x410 [ 47.831892] ? chacha20_simd+0xe4/0x410 [ 47.835830] ? af_alg_get_rsgl+0x990/0x990 [ 47.840030] ? chacha20_dosimd+0x340/0x340 [ 47.844232] ? rcu_read_lock_sched_held+0x108/0x120 [ 47.849215] ? sock_kmalloc+0x112/0x190 [ 47.853157] ? sock_kmalloc+0x11f/0x190 [ 47.857098] ? copy_overflow+0x30/0x30 [ 47.860950] ? lock_sock_nested+0x91/0x110 [ 47.865149] ? trace_hardirqs_on+0xd/0x10 [ 47.869261] ? memset+0x31/0x40 [ 47.872506] skcipher_recvmsg+0xb06/0xf30 [ 47.876617] ? skcipher_recvmsg+0xb06/0xf30 [ 47.880908] ? skcipher_sendpage_nokey+0xa0/0xa0 [ 47.885632] ? skcipher_check_key.isra.4+0x61/0x200 [ 47.890617] skcipher_recvmsg_nokey+0x60/0x80 [ 47.895075] ? skcipher_recvmsg+0xf30/0xf30 [ 47.899358] sock_recvmsg+0xc9/0x110 [ 47.903036] ? __sock_recv_wifi_status+0x210/0x210 [ 47.907937] ___sys_recvmsg+0x29b/0x630 [ 47.911879] ? ___sys_sendmsg+0x8a0/0x8a0 [ 47.916001] ? vmacache_find+0x5f/0x280 [ 47.919944] ? up_read+0x1a/0x40 [ 47.923275] ? __do_page_fault+0x3d6/0xc90 [ 47.927473] ? trace_hardirqs_on+0xd/0x10 [ 47.931591] ? __fdget+0x18/0x20 [ 47.934931] __sys_recvmsg+0xe2/0x210 [ 47.938695] ? __sys_recvmsg+0xe2/0x210 [ 47.942634] ? SyS_sendmmsg+0x60/0x60 [ 47.946401] ? __do_page_fault+0xc90/0xc90 [ 47.950602] ? SyS_setsockopt+0x215/0x360 [ 47.954720] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.959703] SyS_recvmsg+0x2d/0x50 [ 47.963208] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 47.967927] RIP: 0033:0x445259 [ 47.971081] RSP: 002b:00007ffde816b168 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 47.978752] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445259 [ 47.986072] RDX: 0000000040010101 RSI: 000000002008dfc8 RDI: 0000000000000005 [ 47.993307] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 48.000543] R10: 0000000000000020 R11: 0000000000000217 R12: 000000000000ba93 [ 48.007778] R13: 00000000004024c0 R14: 0000000000000000 R15: 0000000000000000 [ 48.015019] Code: 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 05 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 89 9d 7c fe ff ff 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 48.034438] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801c79df5b0 [ 48.041289] ---[ end trace 18dc2cd70cf7e3a3 ]--- [ 48.046178] Kernel panic - not syncing: Fatal exception [ 48.051851] Dumping ftrace buffer: [ 48.055356] (ftrace buffer empty) [ 48.059033] Kernel Offset: disabled [ 48.062624] Rebooting in 86400 seconds..