[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 12.489467] mcstransd (3056) used greatest stack depth: 14504 bytes left 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. [ 13.641868] audit: type=1400 audit(1513710979.441:6): avc: denied { map } for pid=3132 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-2,10.128.0.23' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 syzkaller login: [ 19.995562] audit: type=1400 audit(1513710985.795:7): avc: denied { map } for pid=3146 comm="syzkaller531342" path="/root/syzkaller531342905" 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 [ 20.125479] audit: type=1400 audit(1513710985.924:8): avc: denied { sys_admin } for pid=3146 comm="syzkaller531342" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 executing program executing program executing program [ 20.166528] audit: type=1400 audit(1513710985.966:9): avc: denied { sys_chroot } for pid=3169 comm="syzkaller531342" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns 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 [ 24.433082] kasan: CONFIG_KASAN_INLINE enabled [ 24.437722] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.445106] general protection fault: 0000 [#1] SMP KASAN [ 24.450616] Dumping ftrace buffer: [ 24.454127] (ftrace buffer empty) [ 24.457804] Modules linked in: [ 24.460964] CPU: 1 PID: 3407 Comm: syzkaller531342 Not tainted 4.15.0-rc2-mm1+ #39 [ 24.468635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.477964] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 24.483290] RSP: 0018:ffff8801c21f74a0 EFLAGS: 00010246 [ 24.488617] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226f20b [ 24.495856] RDX: 0000000000000000 RSI: ffff8801c21950c0 RDI: ffff8801c21f753c [ 24.503092] RBP: ffff8801c21f76c0 R08: ffffed003b5aea5c R09: ffff8801dad752c0 [ 24.510329] R10: ffff8801c21f76e0 R11: ffffed003b5aea5b R12: 0000000000000000 [ 24.517564] R13: 0000000000000001 R14: 0000000000000000 R15: dffffc0000000000 [ 24.524800] FS: 000000000122d940(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 24.532990] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.538839] CR2: 00007f3742264000 CR3: 00000001c2611002 CR4: 00000000001606e0 [ 24.546076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.553310] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.560544] Call Trace: [ 24.563106] ? crypto_chacha20_setkey+0xc0/0xc0 [ 24.567744] ? __kmalloc+0x162/0x760 [ 24.571440] ? sock_kmalloc+0x112/0x190 [ 24.575385] ? skcipher_recvmsg+0x3f8/0xf20 [ 24.579670] ? sock_recvmsg+0xc9/0x110 [ 24.583521] ? sock_read_iter+0x361/0x560 [ 24.587634] ? aio_read+0x2b0/0x3a0 [ 24.591223] ? do_io_submit+0xf99/0x14f0 [ 24.595248] ? SyS_io_submit+0x27/0x30 [ 24.599104] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.604009] ? mark_held_locks+0xb2/0x100 [ 24.608141] ? check_noncircular+0x20/0x20 [ 24.612360] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.617364] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.622104] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 24.626403] ? retint_kernel+0x10/0x10 [ 24.630260] chacha20_simd+0xe4/0x410 [ 24.634025] ? chacha20_simd+0xe4/0x410 [ 24.637963] ? af_alg_get_rsgl+0x990/0x990 [ 24.642161] ? chacha20_dosimd+0x340/0x340 [ 24.646363] ? rcu_read_lock_sched_held+0x108/0x120 [ 24.651357] ? sock_kmalloc+0x112/0x190 [ 24.655298] ? refcount_inc_not_zero+0xfe/0x180 [ 24.659930] ? refcount_add+0x60/0x60 [ 24.663697] ? copy_overflow+0x30/0x30 [ 24.667551] ? lock_sock_nested+0x91/0x110 [ 24.671765] ? trace_hardirqs_on+0xd/0x10 [ 24.675890] skcipher_recvmsg+0x739/0xf20 [ 24.680015] ? skcipher_recvmsg+0x739/0xf20 [ 24.684319] ? skcipher_release+0x50/0x50 [ 24.688438] ? selinux_socket_recvmsg+0x36/0x40 [ 24.693083] ? security_socket_recvmsg+0x91/0xc0 [ 24.697813] ? skcipher_release+0x50/0x50 [ 24.701928] sock_recvmsg+0xc9/0x110 [ 24.705617] sock_read_iter+0x361/0x560 [ 24.709570] ? sock_recvmsg+0x110/0x110 [ 24.713514] ? selinux_file_permission+0x82/0x460 [ 24.718335] ? rw_verify_area+0xe5/0x2b0 [ 24.722373] aio_read+0x2b0/0x3a0 [ 24.725796] ? aio_write+0x5a0/0x5a0 [ 24.729481] ? lock_downgrade+0x980/0x980 [ 24.733605] ? lock_release+0xda0/0xda0 [ 24.737553] ? __might_sleep+0x95/0x190 [ 24.741501] do_io_submit+0xf99/0x14f0 [ 24.745355] ? do_io_submit+0xf99/0x14f0 [ 24.749395] ? aio_read+0x3a0/0x3a0 [ 24.752990] ? mm_fault_error+0x2c0/0x2c0 [ 24.757105] ? lock_downgrade+0x980/0x980 [ 24.761221] ? SyS_io_setup+0x10e/0x390 [ 24.765178] ? do_page_fault+0xee/0x720 [ 24.769134] ? __do_page_fault+0xc90/0xc90 [ 24.773361] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.778354] SyS_io_submit+0x27/0x30 [ 24.782041] ? SyS_io_submit+0x27/0x30 [ 24.785907] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 24.790631] RIP: 0033:0x446a69 [ 24.793788] RSP: 002b:00000000007efa48 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 24.801461] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000446a69 [ 24.808702] RDX: 0000000020738000 RSI: 0000000000000001 RDI: 00007f3742264000 [ 24.815939] RBP: 0000000000000000 R08: 00000000000000eb R09: 00000000000000eb [ 24.823180] R10: 00000000000000eb R11: 0000000000000246 R12: 00000000000000ea [ 24.830424] R13: 0000000000005f61 R14: 0000000000000000 R15: 0000000000000000 [ 24.837670] Code: 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d6 05 00 00 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 89 9d 7c fe ff ff 48 c1 ea 03 <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 [ 24.856758] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801c21f74a0 [ 24.863653] ---[ end trace a9e5668f680777d0 ]--- [ 24.868513] Kernel panic - not syncing: Fatal exception [ 24.874196] Dumping ftrace buffer: [ 24.877701] (ftrace buffer empty) [ 24.881388] Kernel Offset: disabled [ 24.884979] Rebooting in 86400 seconds..