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-net-kasan-gce-7,10.128.0.14' (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 syzkaller login: [ 26.538091] kasan: CONFIG_KASAN_INLINE enabled [ 26.538828] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.540044] general protection fault: 0000 [#1] SMP KASAN [ 26.540781] Dumping ftrace buffer: [ 26.541279] (ftrace buffer empty) [ 26.541791] Modules linked in: [ 26.542233] CPU: 0 PID: 3134 Comm: syzkaller311102 Not tainted 4.14.0+ #128 [ 26.543162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.544380] task: ffff8801cc63a200 task.stack: ffff8801cb550000 [ 26.545188] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 26.545898] RSP: 0018:ffff8801cb5575b0 EFLAGS: 00010246 [ 26.546606] RAX: dffffc0000000000 RBX: 00000000ef9ecba1 RCX: ffffffff82265bab [ 26.547559] RDX: 0000000000000000 RSI: ffff8801cd6d2340 RDI: ffff8801cb55764c [ 26.548527] RBP: ffff8801cb5577d0 R08: ffffed003b635414 R09: ffff8801db1aa080 [ 26.549479] R10: ffff8801cb5577f0 R11: ffffed003b635413 R12: 0000000000000000 [ 26.550433] R13: 0000000000000000 R14: 000000005c3d10a6 R15: dffffc0000000000 [ 26.551385] FS: 0000000002581880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 26.552463] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.553236] CR2: 0000000020216000 CR3: 00000001d9112000 CR4: 00000000001406f0 [ 26.554217] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.555168] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.556120] Call Trace: [ 26.556484] ? crypto_chacha20_setkey+0xc0/0xc0 [ 26.557109] ? __kmalloc+0x162/0x760 [ 26.557610] ? sock_kmalloc+0x112/0x190 [ 26.558140] ? skcipher_recvmsg+0x1e6/0xf30 [ 26.561998] ? skcipher_recvmsg_nokey+0x60/0x80 [ 26.566632] ? sock_recvmsg+0xc9/0x110 [ 26.570484] ? ___sys_recvmsg+0x29b/0x630 [ 26.574595] ? __sys_recvmsg+0xe2/0x210 [ 26.578532] ? SyS_recvmsg+0x2d/0x50 [ 26.582212] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.587111] ? mark_held_locks+0xb2/0x100 [ 26.591223] ? check_noncircular+0x20/0x20 [ 26.595420] ? retint_kernel+0x10/0x10 [ 26.599276] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 26.604957] chacha20_simd+0xe4/0x410 [ 26.609852] ? chacha20_simd+0xe4/0x410 [ 26.613794] ? af_alg_get_rsgl+0x990/0x990 [ 26.617993] ? chacha20_dosimd+0x340/0x340 [ 26.622196] ? rcu_read_lock_sched_held+0x108/0x120 [ 26.627190] ? sock_kmalloc+0x112/0x190 [ 26.631491] ? sock_kmalloc+0x11f/0x190 [ 26.636992] ? copy_overflow+0x30/0x30 [ 26.641368] ? lock_sock_nested+0x91/0x110 [ 26.645575] ? trace_hardirqs_on+0xd/0x10 [ 26.649686] ? memset+0x31/0x40 [ 26.652932] skcipher_recvmsg+0xb06/0xf30 [ 26.657043] ? skcipher_recvmsg+0xb06/0xf30 [ 26.661338] ? skcipher_sendpage_nokey+0xa0/0xa0 [ 26.666063] ? skcipher_check_key.isra.4+0x61/0x200 [ 26.671045] skcipher_recvmsg_nokey+0x60/0x80 [ 26.675506] ? skcipher_recvmsg+0xf30/0xf30 [ 26.679794] sock_recvmsg+0xc9/0x110 [ 26.683482] ? __sock_recv_wifi_status+0x210/0x210 [ 26.688376] ___sys_recvmsg+0x29b/0x630 [ 26.692321] ? ___sys_sendmsg+0x8a0/0x8a0 [ 26.696447] ? vmacache_find+0x5f/0x280 [ 26.700400] ? up_read+0x1a/0x40 [ 26.703731] ? __do_page_fault+0x3d6/0xc90 [ 26.707928] ? trace_hardirqs_on+0xd/0x10 [ 26.712306] ? __fdget+0x18/0x20 [ 26.715637] __sys_recvmsg+0xe2/0x210 [ 26.719402] ? __sys_recvmsg+0xe2/0x210 [ 26.723343] ? SyS_sendmmsg+0x60/0x60 [ 26.727108] ? __do_page_fault+0xc90/0xc90 [ 26.731317] ? SyS_setsockopt+0x215/0x360 [ 26.735436] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 26.740421] SyS_recvmsg+0x2d/0x50 [ 26.743929] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 26.749170] RIP: 0033:0x445199 [ 26.753108] RSP: 002b:00007ffcffbc4fd8 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 26.762614] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000445199 [ 26.769854] RDX: 0000000040010101 RSI: 000000002008dfc8 RDI: 0000000000000005 [ 26.777088] RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000 [ 26.784322] R10: 0000000000000020 R11: 0000000000000217 R12: 0000000000000000 [ 26.791558] R13: 0000000000402440 R14: 0000000000000000 R15: 0000000000000000 [ 26.798802] 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 [ 26.817872] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801cb5575b0 [ 26.824745] ---[ end trace 0ef9314573888c22 ]--- [ 26.829508] Kernel panic - not syncing: Fatal exception [ 26.834872] Dumping ftrace buffer: [ 26.838382] (ftrace buffer empty) [ 26.842060] Kernel Offset: disabled [ 26.845663] Rebooting in 86400 seconds..