[....] Starting enhanced syslogd: rsyslogd[ 11.982644] audit: type=1400 audit(1514518060.549:5): avc: denied { syslog } for pid=3003 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: [ 18.744600] audit: type=1400 audit(1514518067.311:6): avc: denied { map } for pid=3142 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 '10.128.15.236' (ECDSA) to the list of known hosts. executing program [ 34.572418] audit: type=1400 audit(1514518083.139:7): avc: denied { map } for pid=3161 comm="syzkaller192496" path="/root/syzkaller192496158" 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 [ 34.617428] kasan: CONFIG_KASAN_INLINE enabled [ 34.622106] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.629508] general protection fault: 0000 [#1] SMP KASAN [ 34.635027] Dumping ftrace buffer: [ 34.638536] (ftrace buffer empty) [ 34.642240] Modules linked in: [ 34.645412] CPU: 0 PID: 3161 Comm: syzkaller192496 Not tainted 4.15.0-rc4+ #169 [ 34.652823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.662154] RIP: 0010:skcipher_walk_done+0x278/0xcb0 [ 34.667224] RSP: 0018:ffff8801c9ad74e0 EFLAGS: 00010202 [ 34.672555] RAX: 0000000000000000 RBX: 0000000000000020 RCX: 0000000000000001 [ 34.679794] RDX: dffffc0000000000 RSI: 0000000000000007 RDI: 0000000000000008 [ 34.687032] RBP: ffff8801c9ad7530 R08: 0000000000000000 R09: 0000000000000000 [ 34.694273] R10: 0000000000000010 R11: 0000000000000010 R12: ffff8801c9ad75c0 [ 34.701521] R13: 0000000000000020 R14: ffff8801c9ad75e0 R15: ffff8801c9ad75a0 [ 34.708771] FS: 0000000000bf1880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 34.716973] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.722823] CR2: 0000000020f91f80 CR3: 00000001c8e1b004 CR4: 00000000001606f0 [ 34.730075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.737323] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.744561] Call Trace: [ 34.747126] ctr_crypt+0x1b5/0x450 [ 34.750634] ? kernel_fpu_end+0xe/0x20 [ 34.754500] ? sha512_finup+0x300/0x580 [ 34.758455] ? aesni_xts_enc8+0x40/0x40 [ 34.762409] ? shash_async_update+0x20/0x20 [ 34.766706] simd_skcipher_decrypt+0x1f3/0x2d0 [ 34.771256] ? simd_skcipher_decrypt+0x1f3/0x2d0 [ 34.775983] poly_tail_continue+0x42a/0x6b0 [ 34.780275] ? crypto_ahash_op+0xc4/0x140 [ 34.784394] poly_tail+0x40f/0x520 [ 34.787903] poly_cipherpad+0x33e/0x470 [ 34.791848] poly_cipher+0x303/0x440 [ 34.795543] poly_adpad+0x347/0x480 [ 34.799139] poly_ad+0x25c/0x300 [ 34.802475] poly_setkey+0x2fc/0x3e0 [ 34.806158] poly_init+0x16c/0x1d0 [ 34.809677] poly_genkey+0x422/0x590 [ 34.813362] chachapoly_decrypt+0x73/0x90 [ 34.817499] aead_recvmsg+0x14a7/0x1bc0 [ 34.821451] ? aead_release+0x50/0x50 [ 34.825220] ? selinux_socket_recvmsg+0x36/0x40 [ 34.829868] ? security_socket_recvmsg+0x91/0xc0 [ 34.834592] ? aead_release+0x50/0x50 [ 34.838362] sock_recvmsg+0xc9/0x110 [ 34.842044] ? __sock_recv_wifi_status+0x210/0x210 [ 34.846952] ___sys_recvmsg+0x2a4/0x640 [ 34.850906] ? ___sys_sendmsg+0x8b0/0x8b0 [ 34.855023] ? __do_page_fault+0x5f7/0xc90 [ 34.859949] ? lock_downgrade+0x980/0x980 [ 34.864072] ? __fget_light+0x297/0x380 [ 34.868018] ? fget_raw+0x20/0x20 [ 34.871441] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 34.876004] ? vmacache_find+0x5f/0x280 [ 34.879949] ? up_read+0x1a/0x40 [ 34.883287] ? __do_page_fault+0x3d6/0xc90 [ 34.887503] ? SYSC_accept4+0x4ff/0x870 [ 34.891447] ? __fdget+0x18/0x20 [ 34.894783] __sys_recvmsg+0xe2/0x210 [ 34.898550] ? __sys_recvmsg+0xe2/0x210 [ 34.902505] ? SyS_sendmmsg+0x60/0x60 [ 34.906278] ? __do_page_fault+0xc90/0xc90 [ 34.910483] ? SyS_setsockopt+0x215/0x360 [ 34.914604] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.919589] SyS_recvmsg+0x2d/0x50 [ 34.923113] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 34.927838] RIP: 0033:0x43ff19 [ 34.930998] RSP: 002b:00007fff9f9c3fb8 EFLAGS: 00000213 ORIG_RAX: 000000000000002f [ 34.938683] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff19 [ 34.945923] RDX: 0000000040000060 RSI: 00000000205f4fc8 RDI: 0000000000000004 [ 34.953172] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 34.960423] R10: 0000000000000000 R11: 0000000000000213 R12: 0000000000401880 [ 34.967662] R13: 0000000000401910 R14: 0000000000000000 R15: 0000000000000000 [ 34.974909] 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 [ 34.993990] RIP: skcipher_walk_done+0x278/0xcb0 RSP: ffff8801c9ad74e0 [ 35.000624] ---[ end trace cf0d940a13b638f1 ]--- [ 35.005389] Kernel panic - not syncing: Fatal exception [ 35.011116] Dumping ftrace buffer: [ 35.014629] (ftrace buffer empty) [ 35.018309] Kernel Offset: disabled [ 35.021902] Rebooting in 86400 seconds..