[....] Starting enhanced syslogd: rsyslogd[ 13.696606] audit: type=1400 audit(1513018119.814:5): avc: denied { syslog } for pid=3000 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 26.453618] audit: type=1400 audit(1513018132.571:6): 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-next-kasan-gce-7,10.128.15.240' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 35.223158] audit: type=1400 audit(1513018141.340:7): avc: denied { map } for pid=3156 comm="syzkaller288868" path="/root/syzkaller288868253" 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 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 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 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 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 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 [ 37.841721] kasan: CONFIG_KASAN_INLINE enabled [ 37.846655] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 37.854076] general protection fault: 0000 [#1] SMP KASAN [ 37.859604] Dumping ftrace buffer: [ 37.863127] (ftrace buffer empty) [ 37.866816] Modules linked in: [ 37.869986] CPU: 1 PID: 5767 Comm: syzkaller288868 Not tainted 4.15.0-rc2-next-20171211+ #64 [ 37.879386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program [ 37.888737] RIP: 0010:blkcipher_walk_first+0x17a/0x570 [ 37.894006] RSP: 0018:ffff8801c3c4f700 EFLAGS: 00010202 [ 37.899356] RAX: dffffc0000000000 RBX: ffff8801c3c4f8e8 RCX: ffffffff82266da1 [ 37.906622] RDX: 0000000000000001 RSI: 1ffff10038789f09 RDI: 0000000000000008 [ 37.913887] RBP: ffff8801c3c4f748 R08: 0000000000000000 R09: ffff8801c43de910 [ 37.921162] R10: ffff8801c3c4f8b8 R11: ffffed003887bd29 R12: 0000000000000000 [ 37.928417] R13: ffff8801c3c4f848 R14: 0000000000000010 R15: ffff8801c3c4f7d0 executing program executing program executing program executing program executing program [ 37.935669] FS: 00007fea5b7fa700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 37.943882] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.949748] CR2: 00007fea5cffce78 CR3: 00000001bd4a4000 CR4: 00000000001406e0 [ 37.957014] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.964275] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.971534] Call Trace: [ 37.974112] ? null_compress+0x80/0x80 [ 37.977988] blkcipher_walk_virt+0x219/0x2a0 [ 37.982392] skcipher_null_crypt+0x10e/0x2d0 [ 37.986809] ? null_compress+0x80/0x80 executing program executing program executing program executing program executing program executing program [ 37.990690] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 37.996223] ? null_compress+0x80/0x80 [ 38.000104] skcipher_encrypt_blkcipher+0x213/0x310 [ 38.005122] ? skcipher_encrypt_blkcipher+0x213/0x310 [ 38.010308] ? skcipher_setkey_blkcipher+0x170/0x170 [ 38.015398] ? af_alg_alloc_areq+0x1f2/0x2f0 [ 38.019800] aead_recvmsg+0x7ed/0x1bc0 [ 38.023686] ? aead_recvmsg+0x670/0x1bc0 [ 38.027755] ? aead_release+0x50/0x50 [ 38.031540] ? selinux_socket_recvmsg+0x36/0x40 [ 38.036194] ? security_socket_recvmsg+0x91/0xc0 executing program executing program executing program executing program [ 38.040957] ? aead_release+0x50/0x50 [ 38.044739] sock_recvmsg+0xc9/0x110 [ 38.048447] ? __sock_recv_wifi_status+0x210/0x210 [ 38.053368] ___sys_recvmsg+0x29b/0x630 [ 38.057334] ? ___sys_sendmsg+0x8a0/0x8a0 [ 38.061480] ? fget_raw+0x20/0x20 [ 38.064926] ? __handle_mm_fault+0x3dd0/0x3dd0 [ 38.069503] ? vmacache_find+0x5f/0x280 [ 38.073483] ? up_read+0x1a/0x40 [ 38.076841] ? __do_page_fault+0x3d6/0xc90 [ 38.081068] ? __fdget+0x18/0x20 [ 38.084439] __sys_recvmsg+0xe2/0x210 [ 38.088238] ? __sys_recvmsg+0xe2/0x210 executing program executing program executing program executing program [ 38.092202] ? SyS_sendmmsg+0x60/0x60 [ 38.096001] ? __do_page_fault+0xc90/0xc90 [ 38.100228] ? lockdep_sys_exit+0x47/0xf0 [ 38.104367] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.109377] SyS_recvmsg+0x2d/0x50 [ 38.113114] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 38.117860] RIP: 0033:0x446f69 [ 38.121029] RSP: 002b:00007fea5b7f9dc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 38.128717] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446f69 [ 38.135969] RDX: 0000000000002002 RSI: 0000000020fd9fc8 RDI: 0000000000000004 executing program executing program executing program executing program executing program [ 38.143223] RBP: 0000000000000000 R08: 00007fea5b7fa700 R09: 00007fea5b7fa700 [ 38.150486] R10: 00007fea5b7fa700 R11: 0000000000000202 R12: 0000000000000000 [ 38.157750] R13: 00007fff2d979d3f R14: 00007fea5b7fa9c0 R15: 0000000000000000 [ 38.165036] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 a7 03 00 00 4d 8b 67 20 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 18 03 00 00 49 8d 7f 28 48 [ 38.184189] RIP: blkcipher_walk_first+0x17a/0x570 RSP: ffff8801c3c4f700 [ 38.190963] ---[ end trace 24e2f060027639b2 ]--- [ 38.198311] Kernel panic - not syncing: Fatal exception [ 38.204153] Dumping ftrace buffer: [ 38.207664] (ftrace buffer empty) [ 38.211339] Kernel Offset: disabled [ 38.214932] Rebooting in 86400 seconds..