[....] Starting enhanced syslogd: rsyslogd[ 13.041490] audit: type=1400 audit(1513267348.759:5): avc: denied { syslog } for pid=2991 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 file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.353603] audit: type=1400 audit(1513267355.071:6): avc: denied { map } for pid=3131 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-net-kasan-gce-7,10.128.15.241' (ECDSA) to the list of known hosts. executing program [ 25.633676] audit: type=1400 audit(1513267361.351:7): avc: denied { map } for pid=3145 comm="syzkaller369627" path="/root/syzkaller369627658" 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 [ 25.659198] kasan: CONFIG_KASAN_INLINE enabled [ 25.659210] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.659216] general protection fault: 0000 [#1] SMP KASAN [ 25.659221] Dumping ftrace buffer: [ 25.659224] (ftrace buffer empty) [ 25.659226] Modules linked in: [ 25.659232] CPU: 0 PID: 3145 Comm: syzkaller369627 Not tainted 4.15.0-rc2+ #153 [ 25.659234] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.659245] RIP: 0010:blkcipher_walk_done+0x300/0xde0 [ 25.659247] RSP: 0018:ffff8801c4887330 EFLAGS: 00010202 [ 25.659250] RAX: 0000000000000000 RBX: 0000000060453082 RCX: 0000000000000001 [ 25.659252] RDX: dffffc0000000000 RSI: 0000000000000f60 RDI: 0000000000000008 [ 25.659255] RBP: ffff8801c4887380 R08: 00000000fffff8f8 R09: 0000000000000000 [ 25.659257] R10: 0000000000000004 R11: ffff8801bc6a8f50 R12: ffff8801c4887630 [ 25.659259] R13: ffff8801c48874e0 R14: ffff8801c4887528 R15: ffff8801c4887508 [ 25.659262] FS: 000000000222f880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 25.659264] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.659267] CR2: 000000002022efc8 CR3: 00000001c4860000 CR4: 00000000001406f0 [ 25.659271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.659274] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.659275] Call Trace: [ 25.659286] glue_ctr_crypt_128bit+0x597/0xc20 [ 25.659296] ? glue_ecb_crypt_128bit+0x5c0/0x5c0 [ 25.659300] ? mark_held_locks+0xb2/0x100 [ 25.659309] ? get_user_pages_fast+0x277/0x340 [ 25.659314] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.659318] ? blkcipher_walk_next+0x653/0x13d0 [ 25.659322] ? get_user_pages_fast+0x14e/0x340 [ 25.659327] ? __kernel_fpu_end+0xad/0x180 [ 25.659330] ? fpu__restore+0x8c0/0x8c0 [ 25.659334] ? camellia_crypt_ctr_2way+0x27b/0x380 [ 25.659350] ctr_crypt+0x34/0x40 [ 25.659353] ? ctr_crypt+0x34/0x40 [ 25.659358] ? encrypt_callback+0x240/0x240 [ 25.659364] __ablk_encrypt+0x1d1/0x2d0 [ 25.659369] ? ablk_set_key+0x1a0/0x1a0 [ 25.659376] ? shash_async_update+0x20/0x20 [ 25.659380] ? add_wait_queue+0x290/0x290 [ 25.659385] ? __ablk_encrypt+0x2d0/0x2d0 [ 25.659389] ablk_encrypt+0x23e/0x2c0 [ 25.659393] ? __ablk_encrypt+0x2d0/0x2d0 [ 25.659398] skcipher_decrypt_ablkcipher+0x312/0x420 [ 25.659401] ? scatterwalk_ffwd+0xbf/0x370 [ 25.659409] poly_tail_continue+0x42a/0x6b0 [ 25.659412] ? crypto_ahash_op+0xc4/0x140 [ 25.659418] poly_tail+0x40f/0x520 [ 25.659424] poly_cipherpad+0x33e/0x470 [ 25.659431] poly_cipher+0x303/0x440 [ 25.659436] poly_adpad+0x347/0x480 [ 25.659442] poly_ad+0x25c/0x300 [ 25.659448] poly_setkey+0x2fc/0x3e0 [ 25.659453] poly_init+0x16c/0x1d0 [ 25.659458] poly_genkey+0x422/0x590 [ 25.659465] chachapoly_encrypt+0x418/0x620 [ 25.659471] aead_recvmsg+0x1295/0x1bc0 [ 25.659484] ? aead_release+0x50/0x50 [ 25.659490] ? selinux_socket_recvmsg+0x36/0x40 [ 25.659494] ? security_socket_recvmsg+0x91/0xc0 [ 25.659499] ? aead_release+0x50/0x50 [ 25.659504] sock_recvmsg+0xc9/0x110 [ 25.659508] ? __sock_recv_wifi_status+0x210/0x210 [ 25.659514] ___sys_recvmsg+0x29b/0x630 [ 25.659526] ? ___sys_sendmsg+0x8a0/0x8a0 [ 25.659540] ? vmacache_find+0x5f/0x280 [ 25.659547] ? up_read+0x1a/0x40 [ 25.659553] ? __do_page_fault+0x3d6/0xc90 [ 25.659558] ? fd_install+0x4d/0x60 [ 25.659566] ? __fdget+0x18/0x20 [ 25.659572] __sys_recvmsg+0xe2/0x210 [ 25.659576] ? __sys_recvmsg+0xe2/0x210 [ 25.659581] ? SyS_sendmmsg+0x60/0x60 [ 25.659589] ? __do_page_fault+0xc90/0xc90 [ 25.659595] ? SyS_setsockopt+0x215/0x360 [ 25.659604] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.659610] SyS_recvmsg+0x2d/0x50 [ 25.659617] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 25.659620] RIP: 0033:0x43ff89 [ 25.659622] RSP: 002b:00007ffc6a30b548 EFLAGS: 00000217 ORIG_RAX: 000000000000002f [ 25.659626] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ff89 [ 25.659628] RDX: 0000000000000002 RSI: 000000002022efc8 RDI: 0000000000000004 [ 25.659630] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 25.659632] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004018f0 [ 25.659634] R13: 0000000000401980 R14: 0000000000000000 R15: 0000000000000000 [ 25.659642] 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 [ 25.659710] RIP: blkcipher_walk_done+0x300/0xde0 RSP: ffff8801c4887330 [ 25.659716] ---[ end trace b329c877818623f9 ]--- [ 25.659718] Kernel panic - not syncing: Fatal exception [ 25.664149] Dumping ftrace buffer: [ 25.664151] (ftrace buffer empty) [ 25.664153] Kernel Offset: disabled [ 26.106230] Rebooting in 86400 seconds..