[....] Starting enhanced syslogd: rsyslogd[ 13.890419] audit: type=1400 audit(1513267415.711:5): avc: denied { syslog } for pid=3002 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: [ 18.677642] audit: type=1400 audit(1513267420.498:6): avc: denied { map } for pid=3141 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 'ci-upstream-kasan-gce-6,10.128.0.5' (ECDSA) to the list of known hosts. executing program [ 25.035564] audit: type=1400 audit(1513267426.856:7): avc: denied { map } for pid=3155 comm="syzkaller324238" path="/root/syzkaller324238495" 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 [ 25.069784] kasan: CONFIG_KASAN_INLINE enabled [ 25.074423] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.081807] general protection fault: 0000 [#1] SMP KASAN [ 25.087324] Dumping ftrace buffer: [ 25.090831] (ftrace buffer empty) [ 25.094507] Modules linked in: [ 25.097666] CPU: 0 PID: 3155 Comm: syzkaller324238 Not tainted 4.15.0-rc3+ #220 [ 25.105077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.114402] RIP: 0010:blkcipher_walk_done+0x300/0xde0 [ 25.119555] RSP: 0018:ffff8801c765f330 EFLAGS: 00010202 [ 25.124880] RAX: 0000000000000000 RBX: 0000000060453082 RCX: 0000000000000001 [ 25.132117] RDX: dffffc0000000000 RSI: 0000000000000f60 RDI: 0000000000000008 [ 25.139351] RBP: ffff8801c765f380 R08: 00000000fffff8f8 R09: 0000000000000000 [ 25.146584] R10: 0000000000000004 R11: ffff8801bc0a8f50 R12: ffff8801c765f630 [ 25.153820] R13: ffff8801c765f4e0 R14: ffff8801c765f528 R15: ffff8801c765f508 [ 25.161056] FS: 0000000001553880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 25.169244] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.175091] CR2: 000000002022efc8 CR3: 00000001c5a0c000 CR4: 00000000001406f0 [ 25.182336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.189571] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.196805] Call Trace: [ 25.199365] glue_ctr_crypt_128bit+0x597/0xc20 [ 25.203919] ? glue_ecb_crypt_128bit+0x5c0/0x5c0 [ 25.208641] ? mark_held_locks+0xb2/0x100 [ 25.212776] ? get_user_pages_fast+0x277/0x340 [ 25.217322] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.222304] ? blkcipher_walk_next+0x653/0x13d0 [ 25.226937] ? get_user_pages_fast+0x14e/0x340 [ 25.231484] ? __kernel_fpu_end+0xad/0x180 [ 25.235682] ? fpu__restore+0x8c0/0x8c0 [ 25.239629] ? camellia_crypt_ctr_2way+0x27b/0x380 [ 25.244532] ctr_crypt+0x34/0x40 [ 25.247863] ? ctr_crypt+0x34/0x40 [ 25.251368] ? encrypt_callback+0x240/0x240 [ 25.255657] __ablk_encrypt+0x1d1/0x2d0 [ 25.259595] ? ablk_set_key+0x1a0/0x1a0 [ 25.263536] ? shash_async_update+0x20/0x20 [ 25.267821] ? add_wait_queue+0x290/0x290 [ 25.271934] ? __ablk_encrypt+0x2d0/0x2d0 [ 25.276046] ablk_encrypt+0x23e/0x2c0 [ 25.279813] ? __ablk_encrypt+0x2d0/0x2d0 [ 25.283927] skcipher_decrypt_ablkcipher+0x312/0x420 [ 25.288994] ? scatterwalk_ffwd+0xbf/0x370 [ 25.293198] poly_tail_continue+0x42a/0x6b0 [ 25.297482] ? crypto_ahash_op+0xc4/0x140 [ 25.301598] poly_tail+0x40f/0x520 [ 25.305103] poly_cipherpad+0x33e/0x470 [ 25.309045] poly_cipher+0x303/0x440 [ 25.312724] poly_adpad+0x347/0x480 [ 25.316318] poly_ad+0x25c/0x300 [ 25.319650] poly_setkey+0x2fc/0x3e0 [ 25.323330] poly_init+0x16c/0x1d0 [ 25.326838] poly_genkey+0x422/0x590 [ 25.330517] chachapoly_encrypt+0x418/0x620 [ 25.334805] aead_recvmsg+0x1295/0x1bc0 [ 25.338754] ? aead_release+0x50/0x50 [ 25.342521] ? selinux_socket_recvmsg+0x36/0x40 [ 25.347156] ? security_socket_recvmsg+0x91/0xc0 [ 25.351876] ? aead_release+0x50/0x50 [ 25.355643] sock_recvmsg+0xc9/0x110 [ 25.359321] ? __sock_recv_wifi_status+0x210/0x210 [ 25.364215] ___sys_recvmsg+0x29b/0x630 [ 25.368156] ? ___sys_sendmsg+0x8a0/0x8a0 [ 25.372278] ? vmacache_find+0x5f/0x280 [ 25.376218] ? up_read+0x1a/0x40 [ 25.379554] ? __do_page_fault+0x3d6/0xc90 [ 25.383754] ? fd_install+0x4d/0x60 [ 25.387348] ? __fdget+0x18/0x20 [ 25.390681] __sys_recvmsg+0xe2/0x210 [ 25.394444] ? __sys_recvmsg+0xe2/0x210 [ 25.398383] ? SyS_sendmmsg+0x60/0x60 [ 25.402150] ? __do_page_fault+0xc90/0xc90 [ 25.406352] ? SyS_setsockopt+0x215/0x360 [ 25.410470] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.415452] SyS_recvmsg+0x2d/0x50 [ 25.418960] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 25.423679] RIP: 0033:0x43ff89 [ 25.426835] RSP: 002b:00007fff86e0e4d8 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 25.434505] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff89 [ 25.441739] RDX: 0000000000000002 RSI: 000000002022efc8 RDI: 0000000000000004 [ 25.448981] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 25.456214] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018f0 [ 25.463451] R13: 0000000000401980 R14: 0000000000000000 R15: 0000000000000000 [ 25.470694] Code: 00 fc ff df 48 c1 e9 03 80 3c 11 00 0f 85 7a 09 00 00 48 8d 78 08 48 ba 00 00 00 00 00 fc ff df 49 89 45 20 48 89 f9 48 c1 e9 03 <0f> b6 14 11 84 d2 74 09 80 fa 03 0f 8e 3e 09 00 00 4c 89 f9 8b [ 25.489759] RIP: blkcipher_walk_done+0x300/0xde0 RSP: ffff8801c765f330 [ 25.496451] ---[ end trace 20fe68159d7b58aa ]--- [ 25.501202] Kernel panic - not syncing: Fatal exception [ 25.506920] Dumping ftrace buffer: [ 25.510432] (ftrace buffer empty) [ 25.514106] Kernel Offset: disabled [ 25.517698] Rebooting in 86400 seconds..