[....] Starting enhanced syslogd: rsyslogd[ 13.001423] audit: type=1400 audit(1512992451.789:5): avc: denied { syslog } for pid=2985 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: [ 20.482411] audit: type=1400 audit(1512992459.270:6): avc: denied { map } for pid=3129 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-5,10.128.0.11' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.572650] audit: type=1400 audit(1512992485.360:7): avc: denied { map } for pid=3146 comm="syzkaller697140" path="/root/syzkaller697140927" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 48.059985] kasan: CONFIG_KASAN_INLINE enabled [ 48.064750] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.072127] general protection fault: 0000 [#1] SMP KASAN [ 48.073209] kasan: CONFIG_KASAN_INLINE enabled [ 48.073211] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.089504] Dumping ftrace buffer: [ 48.093019] (ftrace buffer empty) [ 48.096694] Modules linked in: [ 48.099869] CPU: 1 PID: 3760 Comm: syzkaller697140 Not tainted 4.15.0-rc3+ #217 [ 48.107277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.116602] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 48.121929] RSP: 0018:ffff8801c1cbf4a0 EFLAGS: 00010206 [ 48.127253] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226ba5b [ 48.134486] RDX: 0000000000000050 RSI: ffff8801c2187500 RDI: ffff8801c1cbf53c [ 48.141719] RBP: ffff8801c1cbf6c0 R08: ffffed00384e2c34 R09: ffff8801c2716180 [ 48.148952] R10: ffff8801c1cbf6e0 R11: ffffed00384e2c33 R12: 0000000000000000 [ 48.156191] R13: 0000000000000282 R14: 0000000000000000 R15: dffffc0000000000 [ 48.163426] FS: 0000000001b10880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 48.171614] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.177459] CR2: 00007f6427bf3000 CR3: 00000001c2058000 CR4: 00000000001406e0 [ 48.184791] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.192024] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.199259] Call Trace: [ 48.201815] ? crypto_chacha20_setkey+0xc0/0xc0 [ 48.206453] ? __kmalloc+0x162/0x760 [ 48.210129] ? sock_kmalloc+0x112/0x190 [ 48.214066] ? skcipher_recvmsg+0x3f8/0xf20 [ 48.218353] ? sock_recvmsg+0xc9/0x110 [ 48.222201] ? sock_read_iter+0x361/0x560 [ 48.226312] ? aio_read+0x2b0/0x3a0 [ 48.229900] ? do_io_submit+0xf99/0x14f0 [ 48.233925] ? SyS_io_submit+0x27/0x30 [ 48.237774] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 48.242669] ? __sched_text_start+0x8/0x8 [ 48.246780] ? check_noncircular+0x20/0x20 [ 48.251068] ? print_usage_bug+0x3f0/0x3f0 [ 48.255265] ? should_failslab+0x101/0x120 [ 48.259461] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 48.263750] chacha20_simd+0xe4/0x410 [ 48.267513] ? chacha20_simd+0xe4/0x410 [ 48.271452] ? af_alg_get_rsgl+0x990/0x990 [ 48.275650] ? chacha20_dosimd+0x340/0x340 [ 48.279849] ? rcu_read_lock_sched_held+0x108/0x120 [ 48.284830] ? sock_kmalloc+0x112/0x190 [ 48.288771] ? refcount_inc_not_zero+0xfe/0x180 [ 48.293408] ? refcount_add+0x60/0x60 [ 48.297173] ? copy_overflow+0x30/0x30 [ 48.301021] ? lock_sock_nested+0x91/0x110 [ 48.305218] ? trace_hardirqs_on+0xd/0x10 [ 48.309332] skcipher_recvmsg+0x739/0xf20 [ 48.313442] ? skcipher_recvmsg+0x739/0xf20 [ 48.317732] ? skcipher_release+0x50/0x50 [ 48.321844] ? selinux_socket_recvmsg+0x36/0x40 [ 48.326475] ? security_socket_recvmsg+0x91/0xc0 [ 48.331594] ? skcipher_release+0x50/0x50 [ 48.335707] sock_recvmsg+0xc9/0x110 [ 48.339385] sock_read_iter+0x361/0x560 [ 48.343322] ? sock_recvmsg+0x110/0x110 [ 48.347263] ? selinux_file_permission+0x82/0x460 [ 48.352076] ? rw_verify_area+0xe5/0x2b0 [ 48.356113] aio_read+0x2b0/0x3a0 [ 48.359540] ? aio_write+0x5a0/0x5a0 [ 48.363220] ? lock_downgrade+0x980/0x980 [ 48.367336] ? lock_release+0xda0/0xda0 [ 48.371274] ? refcount_inc_not_zero+0xfe/0x180 [ 48.375908] ? refcount_add+0x60/0x60 [ 48.379676] ? __might_sleep+0x95/0x190 [ 48.383619] do_io_submit+0xf99/0x14f0 [ 48.387470] ? do_io_submit+0xf99/0x14f0 [ 48.391498] ? aio_read+0x3a0/0x3a0 [ 48.395091] ? mm_fault_error+0x2c0/0x2c0 [ 48.399203] ? __fd_install+0x288/0x740 [ 48.403139] ? anon_inode_getfile+0x349/0x490 [ 48.407600] ? do_page_fault+0xee/0x720 [ 48.411547] ? __init_waitqueue_head+0x97/0x140 [ 48.416188] ? __do_page_fault+0xc90/0xc90 [ 48.420402] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.425386] SyS_io_submit+0x27/0x30 [ 48.429064] ? SyS_io_submit+0x27/0x30 [ 48.432916] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 48.437632] RIP: 0033:0x4409f9 [ 48.440786] RSP: 002b:00007ffdf3d16ba8 EFLAGS: 00000203 ORIG_RAX: 00000000000000d1 [ 48.448454] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004409f9 [ 48.455689] RDX: 0000000020738000 RSI: 0000000000000002 RDI: 00007f6427bf3000 [ 48.462922] RBP: 000000000000bba0 R08: 0000000000000003 R09: 0000000000000003 [ 48.470163] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 48.477513] R13: 0000000000401e80 R14: 0000000000000000 R15: 0000000000000000 [ 48.484768] 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 [ 48.503894] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801c1cbf4a0 [ 48.510708] general protection fault: 0000 [#2] SMP KASAN [ 48.510741] ---[ end trace dd5fcbfbe80c2d13 ]--- [ 48.510745] Kernel panic - not syncing: Fatal exception [ 48.526269] Dumping ftrace buffer: [ 48.529775] (ftrace buffer empty) [ 48.533453] Modules linked in: [ 48.536615] CPU: 0 PID: 3762 Comm: syzkaller697140 Tainted: G D 4.15.0-rc3+ #217 [ 48.545326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.554658] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 48.559984] RSP: 0018:ffff8801c200f4a0 EFLAGS: 00010246 [ 48.565314] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226ba5b [ 48.572551] RDX: 0000000000000000 RSI: ffff8801c1c2fe40 RDI: ffff8801c200f53c [ 48.579787] RBP: ffff8801c200f6c0 R08: ffffed00384ab06c R09: ffff8801c2558340 [ 48.587025] R10: ffff8801c200f6e0 R11: ffffed00384ab06b R12: 0000000000000000 [ 48.594270] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 48.601513] FS: 0000000001b10880(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 48.609707] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.615554] CR2: 00007f6427bf3000 CR3: 00000001c2eab000 CR4: 00000000001406f0 [ 48.622792] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.630028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.637263] Call Trace: [ 48.639825] ? crypto_chacha20_setkey+0xc0/0xc0 [ 48.644466] ? __kmalloc+0x162/0x760 [ 48.648146] ? sock_kmalloc+0x112/0x190 [ 48.652090] ? skcipher_recvmsg+0x3f8/0xf20 [ 48.656381] ? sock_recvmsg+0xc9/0x110 [ 48.660234] ? sock_read_iter+0x361/0x560 [ 48.664350] ? aio_read+0x2b0/0x3a0 [ 48.667941] ? do_io_submit+0xf99/0x14f0 [ 48.671968] ? SyS_io_submit+0x27/0x30 [ 48.675824] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 48.680729] ? fs_reclaim_acquire+0x20/0x20 [ 48.685019] ? lock_downgrade+0x980/0x980 [ 48.689132] ? lock_acquire+0x1d5/0x580 [ 48.693071] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 48.697369] chacha20_simd+0xe4/0x410 [ 48.701136] ? chacha20_simd+0xe4/0x410 [ 48.705078] ? af_alg_get_rsgl+0x990/0x990 [ 48.709279] ? rcu_note_context_switch+0x710/0x710 [ 48.714175] ? chacha20_dosimd+0x340/0x340 [ 48.718377] ? kasan_kmalloc+0xad/0xe0 [ 48.722237] ? sock_kmalloc+0x112/0x190 [ 48.726181] ? refcount_inc_not_zero+0xfe/0x180 [ 48.730817] ? refcount_add+0x60/0x60 [ 48.734583] ? copy_overflow+0x30/0x30 [ 48.738437] ? lock_sock_nested+0x91/0x110 [ 48.742640] ? trace_hardirqs_on+0xd/0x10 [ 48.746759] skcipher_recvmsg+0x739/0xf20 [ 48.750877] ? skcipher_recvmsg+0x739/0xf20 [ 48.755166] ? is_bpf_text_address+0xa4/0x120 [ 48.759637] ? skcipher_release+0x50/0x50 [ 48.763756] ? selinux_socket_recvmsg+0x36/0x40 [ 48.768392] ? security_socket_recvmsg+0x91/0xc0 [ 48.773114] ? skcipher_release+0x50/0x50 [ 48.777227] sock_recvmsg+0xc9/0x110 [ 48.780913] sock_read_iter+0x361/0x560 [ 48.784855] ? sock_recvmsg+0x110/0x110 [ 48.788797] ? selinux_file_permission+0x82/0x460 [ 48.793614] ? rw_verify_area+0xe5/0x2b0 [ 48.797644] aio_read+0x2b0/0x3a0 [ 48.801066] ? aio_write+0x5a0/0x5a0 [ 48.804747] ? __might_fault+0x110/0x1d0 [ 48.808775] ? lock_downgrade+0x980/0x980 [ 48.812888] ? lock_acquire+0x1d5/0x580 [ 48.816837] ? lock_release+0xda0/0xda0 [ 48.820778] ? refcount_inc_not_zero+0xfe/0x180 [ 48.825415] ? refcount_add+0x60/0x60 [ 48.829188] ? __might_sleep+0x95/0x190 [ 48.833133] do_io_submit+0xf99/0x14f0 [ 48.836990] ? do_io_submit+0xf99/0x14f0 [ 48.841027] ? aio_read+0x3a0/0x3a0 [ 48.844622] ? mm_fault_error+0x2c0/0x2c0 [ 48.848740] ? __fd_install+0x288/0x740 [ 48.852681] ? anon_inode_getfile+0x349/0x490 [ 48.857152] ? do_page_fault+0xee/0x720 [ 48.861100] ? __init_waitqueue_head+0x97/0x140 [ 48.865738] ? __do_page_fault+0xc90/0xc90 [ 48.869954] ? perf_trace_sys_enter+0xcb0/0xcb0 [ 48.874596] SyS_io_submit+0x27/0x30 [ 48.878278] ? SyS_io_submit+0x27/0x30 [ 48.882136] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 48.886857] RIP: 0033:0x4409f9 [ 48.890018] RSP: 002b:00007ffdf3d16ba8 EFLAGS: 00000203 ORIG_RAX: 00000000000000d1 [ 48.897696] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004409f9 [ 48.904934] RDX: 0000000020738000 RSI: 0000000000000002 RDI: 00007f6427bf3000 [ 48.912171] RBP: 000000000000bba5 R08: 0000000000000008 R09: 0000000000000008 [ 48.919414] R10: 0000000000000000 R11: 0000000000000203 R12: 0000000000000000 [ 48.926651] R13: 0000000000401e80 R14: 0000000000000000 R15: 0000000000000000 [ 48.933898] 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 [ 48.953007] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801c200f4a0 [ 48.959846] Dumping ftrace buffer: [ 48.963376] (ftrace buffer empty) [ 48.967065] Kernel Offset: disabled [ 48.970671] Rebooting in 86400 seconds..