[....] Starting enhanced syslogd: rsyslogd[ 11.480812] audit: type=1400 audit(1514518062.805:5): avc: denied { syslog } for pid=2997 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.040527] audit: type=1400 audit(1514518068.365:6): avc: denied { map } for pid=3135 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 Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts. executing program [ 23.221946] audit: type=1400 audit(1514518074.546:7): avc: denied { map } for pid=3149 comm="syzkaller340022" path="/root/syzkaller340022149" 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 [ 23.264670] kasan: CONFIG_KASAN_INLINE enabled [ 23.269315] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.276682] general protection fault: 0000 [#1] SMP KASAN [ 23.282207] Dumping ftrace buffer: [ 23.285714] (ftrace buffer empty) [ 23.289396] Modules linked in: [ 23.292556] CPU: 1 PID: 3149 Comm: syzkaller340022 Not tainted 4.15.0-rc4-mm1+ #49 [ 23.300226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.309551] RIP: 0010:skcipher_walk_done+0x278/0xcb0 [ 23.314618] RSP: 0018:ffff8801c8f3f4e0 EFLAGS: 00010202 [ 23.319946] RAX: 0000000000000000 RBX: 0000000000000020 RCX: 0000000000000001 [ 23.327183] RDX: dffffc0000000000 RSI: 0000000000000007 RDI: 0000000000000008 [ 23.334427] RBP: ffff8801c8f3f530 R08: 0000000000000000 R09: 0000000000000000 [ 23.341665] R10: 0000000000000010 R11: 0000000000000010 R12: ffff8801c8f3f5c0 [ 23.348900] R13: 0000000000000020 R14: ffff8801c8f3f5e0 R15: ffff8801c8f3f5a0 [ 23.356138] FS: 0000000002158880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.364329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.370177] CR2: 0000000020f91f80 CR3: 00000001c8701005 CR4: 00000000001606e0 [ 23.377416] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.384673] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.391908] Call Trace: [ 23.394470] ctr_crypt+0x1b5/0x450 [ 23.397976] ? kernel_fpu_end+0xe/0x20 [ 23.401829] ? sha512_finup+0x300/0x580 [ 23.405772] ? aesni_xts_enc8+0x40/0x40 [ 23.409722] ? shash_async_update+0x20/0x20 [ 23.414019] simd_skcipher_decrypt+0x1f3/0x2d0 [ 23.418571] ? simd_skcipher_decrypt+0x1f3/0x2d0 [ 23.423294] poly_tail_continue+0x42a/0x6b0 [ 23.427580] ? crypto_ahash_op+0xc4/0x140 [ 23.431707] poly_tail+0x40f/0x520 [ 23.435216] poly_cipherpad+0x33e/0x470 [ 23.439166] poly_cipher+0x303/0x440 [ 23.442847] poly_adpad+0x347/0x480 [ 23.446439] poly_ad+0x25c/0x300 [ 23.449772] poly_setkey+0x2fc/0x3e0 [ 23.453450] poly_init+0x16c/0x1d0 [ 23.456955] poly_genkey+0x422/0x590 [ 23.460635] chachapoly_decrypt+0x73/0x90 [ 23.464749] aead_recvmsg+0x154a/0x1cf0 [ 23.468698] ? aead_release+0x50/0x50 [ 23.472466] ? selinux_socket_recvmsg+0x36/0x40 [ 23.477101] ? security_socket_recvmsg+0x91/0xc0 [ 23.481825] ? aead_release+0x50/0x50 [ 23.485591] sock_recvmsg+0xc9/0x110 [ 23.489271] ? __sock_recv_wifi_status+0x210/0x210 [ 23.494166] ___sys_recvmsg+0x2a4/0x640 [ 23.498111] ? ___sys_sendmsg+0x8b0/0x8b0 [ 23.502228] ? __do_page_fault+0x5f7/0xc90 [ 23.506429] ? lock_downgrade+0x980/0x980 [ 23.510545] ? __fget_light+0x297/0x380 [ 23.514483] ? fget_raw+0x20/0x20 [ 23.517909] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 23.522456] ? vmacache_find+0x5f/0x280 [ 23.526406] ? up_read+0x1a/0x40 [ 23.529747] ? __do_page_fault+0x3d6/0xc90 [ 23.533947] ? SYSC_accept4+0x4ff/0x870 [ 23.537889] ? __fdget+0x18/0x20 [ 23.541223] __sys_recvmsg+0xe2/0x210 [ 23.544990] ? __sys_recvmsg+0xe2/0x210 [ 23.549025] ? SyS_sendmmsg+0x60/0x60 [ 23.552796] ? __do_page_fault+0xc90/0xc90 [ 23.556998] ? SyS_setsockopt+0x215/0x360 [ 23.561123] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.566106] SyS_recvmsg+0x2d/0x50 [ 23.569616] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 23.574334] RIP: 0033:0x43ff19 [ 23.577490] RSP: 002b:00007ffdf190bd88 EFLAGS: 00000213 ORIG_RAX: 000000000000002f [ 23.585163] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff19 [ 23.592398] RDX: 0000000040000060 RSI: 00000000205f4fc8 RDI: 0000000000000004 [ 23.599634] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 23.606868] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401880 [ 23.614105] R13: 0000000000401910 R14: 0000000000000000 R15: 0000000000000000 [ 23.621345] Code: 00 fc ff df 48 c1 e9 03 80 3c 11 00 0f 85 f1 08 00 00 48 8d 78 08 48 ba 00 00 00 00 00 fc ff df 49 89 47 20 48 89 f9 48 c1 e9 03 <0f> b6 14 11 84 d2 74 09 80 fa 03 0f 8e b5 08 00 00 48 8b 55 d0 [ 23.640418] RIP: skcipher_walk_done+0x278/0xcb0 RSP: ffff8801c8f3f4e0 [ 23.646994] ---[ end trace 84da2f6bff5ca09e ]--- [ 23.651736] Kernel panic - not syncing: Fatal exception [ 23.657614] Dumping ftrace buffer: [ 23.661123] (ftrace buffer empty) [ 23.664797] Kernel Offset: disabled [ 23.668389] Rebooting in 86400 seconds..