[....] Starting enhanced syslogd: rsyslogd[ 12.848176] audit: type=1400 audit(1513018130.226:5): avc: denied { syslog } for pid=2993 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: [ 18.116503] audit: type=1400 audit(1513018135.494:6): avc: denied { map } for pid=3134 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-8,10.128.15.237' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.436726] audit: type=1400 audit(1513018141.814:7): avc: denied { map } for pid=3148 comm="syzkaller676233" path="/root/syzkaller676233201" 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 [ 25.407561] kasan: CONFIG_KASAN_INLINE enabled [ 25.412322] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.419771] general protection fault: 0000 [#1] SMP KASAN [ 25.425723] Dumping ftrace buffer: [ 25.429232] (ftrace buffer empty) [ 25.432909] Modules linked in: [ 25.436072] CPU: 0 PID: 3799 Comm: syzkaller676233 Not tainted 4.15.0-rc3+ #217 [ 25.443484] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.452810] RIP: 0010:blkcipher_walk_first+0x17a/0x570 [ 25.458048] RSP: 0018:ffff8801c24df700 EFLAGS: 00010202 [ 25.463376] RAX: dffffc0000000000 RBX: ffff8801c24df8e8 RCX: ffffffff82264761 [ 25.470612] RDX: 0000000000000001 RSI: 1ffff1003849bf09 RDI: 0000000000000008 [ 25.477846] RBP: ffff8801c24df748 R08: 0000000000000000 R09: ffff8801c321fb10 [ 25.486557] R10: ffff8801c24df8b8 R11: ffffed0038643f69 R12: 0000000000000000 [ 25.493793] R13: ffff8801c24df848 R14: 0000000000000010 R15: ffff8801c24df7d0 [ 25.501032] FS: 00007f17ddf3e700(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 25.509225] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.515073] CR2: 00007f17de73ee78 CR3: 00000001c4a6b000 CR4: 00000000001406f0 [ 25.522311] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.529900] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.537135] Call Trace: [ 25.539699] ? null_compress+0x80/0x80 [ 25.543554] blkcipher_walk_virt+0x219/0x2a0 [ 25.547931] skcipher_null_crypt+0x10e/0x2d0 [ 25.552309] ? null_compress+0x80/0x80 [ 25.556164] ? iov_iter_copy_from_user_atomic+0xe30/0xe30 [ 25.561670] ? __kmalloc+0x471/0x760 [ 25.565350] ? af_alg_unregister_type+0x3d0/0x3d0 [ 25.570165] ? null_compress+0x80/0x80 [ 25.574019] skcipher_encrypt_blkcipher+0x213/0x310 [ 25.579004] ? skcipher_encrypt_blkcipher+0x213/0x310 [ 25.584161] ? skcipher_setkey_blkcipher+0x170/0x170 [ 25.589236] ? af_alg_alloc_areq+0x1f2/0x2f0 [ 25.593612] aead_recvmsg+0x7ed/0x1bc0 [ 25.597469] ? aead_recvmsg+0x670/0x1bc0 [ 25.601510] ? aead_release+0x50/0x50 [ 25.605281] ? selinux_socket_recvmsg+0x36/0x40 [ 25.609915] ? security_socket_recvmsg+0x91/0xc0 [ 25.614637] ? aead_release+0x50/0x50 [ 25.618408] sock_recvmsg+0xc9/0x110 [ 25.622089] ? __sock_recv_wifi_status+0x210/0x210 [ 25.626987] ___sys_recvmsg+0x29b/0x630 [ 25.630935] ? ___sys_sendmsg+0x8a0/0x8a0 [ 25.635059] ? fget_raw+0x20/0x20 [ 25.638480] ? __handle_mm_fault+0x3e20/0x3e20 [ 25.643030] ? vmacache_find+0x5f/0x280 [ 25.646973] ? up_read+0x1a/0x40 [ 25.650307] ? __do_page_fault+0x3d6/0xc90 [ 25.654509] ? lock_downgrade+0x980/0x980 [ 25.658627] ? __fdget+0x18/0x20 [ 25.661965] __sys_recvmsg+0xe2/0x210 [ 25.665730] ? __sys_recvmsg+0xe2/0x210 [ 25.669672] ? SyS_sendmmsg+0x60/0x60 [ 25.673438] ? __do_page_fault+0xc90/0xc90 [ 25.677639] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.682625] ? lockdep_sys_exit+0x47/0xf0 [ 25.686743] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.691726] SyS_recvmsg+0x2d/0x50 [ 25.695235] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 25.699954] RIP: 0033:0x446339 [ 25.703111] RSP: 002b:00007f17ddf3ddc8 EFLAGS: 00000202 ORIG_RAX: 000000000000002f [ 25.710781] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000446339 [ 25.718016] RDX: 0000000000002002 RSI: 0000000020fd9fc8 RDI: 0000000000000015 [ 25.725252] RBP: 0000000000000000 R08: 00007f17ddf3e700 R09: 00007f17ddf3e700 [ 25.732493] R10: 00007f17ddf3e700 R11: 0000000000000202 R12: 0000000000000000 [ 25.739732] R13: 00007ffcbcb68e2f R14: 00007f17ddf3e9c0 R15: 0000000000000000 executing program executing program [ 25.746974] 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 [ 25.766069] RIP: blkcipher_walk_first+0x17a/0x570 RSP: ffff8801c24df700 [ 25.772901] ---[ end trace 93fe6f459b527e28 ]--- [ 25.784571] Kernel panic - not syncing: Fatal exception [ 25.790690] Dumping ftrace buffer: [ 25.794197] (ftrace buffer empty) [ 25.797870] Kernel Offset: disabled [ 25.801462] Rebooting in 86400 seconds..