[....] Starting enhanced syslogd: rsyslogd[ 12.287049] audit: type=1400 audit(1513117600.902:5): avc: denied { syslog } for pid=2996 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: [ 35.604473] audit: type=1400 audit(1513117624.220:6): 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 'ci-upstream-next-kasan-gce-5,10.128.0.6' (ECDSA) to the list of known hosts. executing program [ 41.793442] audit: type=1400 audit(1513117630.409:7): avc: denied { map } for pid=3154 comm="syzkaller199052" path="/root/syzkaller199052183" 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 [ 41.837462] kasan: CONFIG_KASAN_INLINE enabled [ 41.842088] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.849460] general protection fault: 0000 [#1] SMP KASAN [ 41.854963] Dumping ftrace buffer: [ 41.858466] (ftrace buffer empty) [ 41.862144] Modules linked in: [ 41.865306] CPU: 1 PID: 3154 Comm: syzkaller199052 Not tainted 4.15.0-rc3-next-20171212+ #65 [ 41.873843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.883166] RIP: 0010:blkcipher_walk_done+0x300/0xde0 [ 41.888316] RSP: 0018:ffff8801c3daf4a0 EFLAGS: 00010202 [ 41.893642] RAX: 0000000000000000 RBX: 0000000064417904 RCX: 0000000000000001 [ 41.900879] RDX: dffffc0000000000 RSI: 0000000000000fd6 RDI: 0000000000000008 [ 41.908114] RBP: ffff8801c3daf4f0 R08: ffffed00394ccdfb R09: 0000000000000000 [ 41.915345] R10: 0000000000000003 R11: ffffed00394ccdfa R12: ffff8801c3daf6a8 [ 41.922580] R13: ffff8801c3daf590 R14: ffff8801c3daf5d8 R15: ffff8801c3daf5b8 [ 41.929828] FS: 00000000020a3880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 41.938015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.943864] CR2: 0000000020931fd0 CR3: 00000001ce38b000 CR4: 00000000001406e0 [ 41.951102] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.958337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.965569] Call Trace: [ 41.968123] ? crypto_inc+0x74/0x1b0 [ 41.971809] crypto_ctr_crypt+0x3ca/0x840 [ 41.975927] ? rmd256_update+0x92/0x140 [ 41.979870] ? blowfish_setkey+0x710/0x710 [ 41.984069] ? crypto_rfc3686_create+0xc40/0xc40 [ 41.988796] ? shash_ahash_finup+0x1d9/0x270 [ 41.993169] ? crypto_rfc3686_create+0xc40/0xc40 [ 41.997894] skcipher_decrypt_blkcipher+0x213/0x310 [ 42.002878] ? skcipher_decrypt_blkcipher+0x213/0x310 [ 42.008035] ? skcipher_encrypt_blkcipher+0x310/0x310 [ 42.013192] ? scatterwalk_ffwd+0xbf/0x370 [ 42.017395] poly_tail_continue+0x42a/0x6b0 [ 42.021681] ? crypto_ahash_op+0xc4/0x140 [ 42.025797] poly_tail+0x40f/0x520 [ 42.029310] poly_cipherpad+0x33e/0x470 [ 42.033252] poly_cipher+0x303/0x440 [ 42.036931] poly_adpad+0x347/0x480 [ 42.040536] poly_ad+0x25c/0x300 [ 42.043868] poly_setkey+0x2fc/0x3e0 [ 42.047557] poly_init+0x16c/0x1d0 [ 42.051061] poly_genkey+0x422/0x590 [ 42.054739] chachapoly_encrypt+0x418/0x620 [ 42.059029] aead_recvmsg+0x1374/0x1cf0 [ 42.062976] ? aead_release+0x50/0x50 [ 42.066743] ? selinux_socket_recvmsg+0x36/0x40 [ 42.071375] ? security_socket_recvmsg+0x91/0xc0 [ 42.076099] ? aead_release+0x50/0x50 [ 42.079863] sock_recvmsg+0xc9/0x110 [ 42.083547] ? __sock_recv_wifi_status+0x210/0x210 [ 42.088441] ___sys_recvmsg+0x29b/0x630 [ 42.092381] ? ___sys_sendmsg+0x8a0/0x8a0 [ 42.096501] ? rcu_note_context_switch+0x710/0x710 [ 42.101403] ? fget_raw+0x20/0x20 [ 42.104822] ? __sys_sendmmsg+0x1e6/0x5f0 [ 42.108931] ? __sys_sendmmsg+0x3f0/0x5f0 [ 42.113045] ? SyS_sendmsg+0x50/0x50 [ 42.116727] ? __fdget+0x18/0x20 [ 42.120057] __sys_recvmsg+0xe2/0x210 [ 42.123821] ? __sys_recvmsg+0xe2/0x210 [ 42.127761] ? SyS_sendmmsg+0x60/0x60 [ 42.131527] ? __do_page_fault+0xc90/0xc90 [ 42.135734] ? SyS_setsockopt+0x215/0x360 [ 42.139855] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.144838] SyS_recvmsg+0x2d/0x50 [ 42.148347] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 42.153063] RIP: 0033:0x43ffa9 [ 42.156216] RSP: 002b:00007ffedf525268 EFLAGS: 00000207 ORIG_RAX: 000000000000002f [ 42.163887] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043ffa9 [ 42.171124] RDX: 0000000000000020 RSI: 00000000201f5000 RDI: 0000000000000004 [ 42.178355] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 42.185597] R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401910 [ 42.192833] R13: 00000000004019a0 R14: 0000000000000000 R15: 0000000000000000 [ 42.200075] 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 [ 42.219136] RIP: blkcipher_walk_done+0x300/0xde0 RSP: ffff8801c3daf4a0 [ 42.225823] ---[ end trace adb9e36f91edeba0 ]--- [ 42.230569] Kernel panic - not syncing: Fatal exception [ 42.236257] Dumping ftrace buffer: [ 42.239773] (ftrace buffer empty) [ 42.243447] Kernel Offset: disabled [ 42.247040] Rebooting in 86400 seconds..