[....] Starting enhanced syslogd: rsyslogd[ 13.277424] audit: type=1400 audit(1513194579.085:5): avc: denied { syslog } for pid=2992 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: [ 19.566175] audit: type=1400 audit(1513194585.373:6): avc: denied { map } for pid=3131 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-mmots-kasan-gce-2,10.128.0.45' (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 [ 25.931568] audit: type=1400 audit(1513194591.739:7): avc: denied { map } for pid=3145 comm="syzkaller448427" path="/root/syzkaller448427440" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 36.103099] kasan: CONFIG_KASAN_INLINE enabled [ 36.107799] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.115206] general protection fault: 0000 [#1] SMP KASAN [ 36.120342] kasan: CONFIG_KASAN_INLINE enabled [ 36.120344] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 36.132589] Dumping ftrace buffer: [ 36.136098] (ftrace buffer empty) [ 36.139779] Modules linked in: [ 36.142943] CPU: 1 PID: 9865 Comm: syzkaller448427 Not tainted 4.15.0-rc2-mm1+ #39 [ 36.150615] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.159957] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 36.165282] RSP: 0018:ffff8801d3f074a0 EFLAGS: 00010246 [ 36.170610] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226f20b [ 36.177848] RDX: 0000000000000000 RSI: ffff8801d39c3080 RDI: ffff8801d3f0753c [ 36.185083] RBP: ffff8801d3f076c0 R08: ffffed003a7f7f64 R09: ffff8801d3fbfb00 [ 36.192318] R10: ffff8801d3f076e0 R11: ffffed003a7f7f63 R12: 0000000000000000 [ 36.199555] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 36.206794] FS: 00007f8f40f67700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 36.214984] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.220842] CR2: 00007f8f41769000 CR3: 00000001ca272000 CR4: 00000000001406e0 [ 36.228082] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.235319] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.242555] Call Trace: [ 36.245119] ? crypto_chacha20_setkey+0xc0/0xc0 [ 36.249761] ? __kmalloc+0x162/0x760 [ 36.253441] ? sock_kmalloc+0x112/0x190 [ 36.257384] ? skcipher_recvmsg+0x3f8/0xf20 [ 36.261673] ? sock_recvmsg+0xc9/0x110 [ 36.265525] ? sock_read_iter+0x361/0x560 [ 36.269639] ? aio_read+0x2b0/0x3a0 [ 36.273231] ? do_io_submit+0xf99/0x14f0 [ 36.277259] ? SyS_io_submit+0x27/0x30 [ 36.281126] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 36.286027] ? mark_held_locks+0xb2/0x100 [ 36.290141] ? check_noncircular+0x20/0x20 [ 36.294340] ? retint_kernel+0x10/0x10 [ 36.298195] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 36.302488] chacha20_simd+0xe4/0x410 [ 36.306262] ? chacha20_simd+0xe4/0x410 [ 36.310203] ? af_alg_get_rsgl+0x990/0x990 [ 36.314406] ? chacha20_dosimd+0x340/0x340 [ 36.318612] ? rcu_read_lock_sched_held+0x108/0x120 [ 36.323599] ? sock_kmalloc+0x112/0x190 [ 36.327541] ? refcount_inc_not_zero+0xfe/0x180 [ 36.332184] ? refcount_add+0x60/0x60 [ 36.335952] ? copy_overflow+0x30/0x30 [ 36.339807] ? lock_sock_nested+0x91/0x110 [ 36.344009] ? trace_hardirqs_on+0xd/0x10 [ 36.348127] skcipher_recvmsg+0x739/0xf20 [ 36.352241] ? skcipher_recvmsg+0x739/0xf20 [ 36.356526] ? lock_downgrade+0x980/0x980 [ 36.360650] ? skcipher_release+0x50/0x50 [ 36.364768] ? selinux_socket_recvmsg+0x36/0x40 [ 36.369403] ? security_socket_recvmsg+0x91/0xc0 [ 36.374124] ? skcipher_release+0x50/0x50 [ 36.378236] sock_recvmsg+0xc9/0x110 [ 36.381916] sock_read_iter+0x361/0x560 [ 36.385864] ? sock_recvmsg+0x110/0x110 [ 36.389804] ? selinux_file_permission+0x82/0x460 [ 36.394618] ? rw_verify_area+0xe5/0x2b0 [ 36.398649] aio_read+0x2b0/0x3a0 [ 36.402069] ? aio_write+0x5a0/0x5a0 [ 36.405751] ? lock_downgrade+0x980/0x980 [ 36.409869] ? lock_release+0xda0/0xda0 [ 36.413808] ? refcount_inc_not_zero+0xfe/0x180 [ 36.418444] ? refcount_add+0x60/0x60 [ 36.422232] ? __might_sleep+0x95/0x190 [ 36.426176] do_io_submit+0xf99/0x14f0 [ 36.430031] ? do_io_submit+0xf99/0x14f0 [ 36.434062] ? aio_read+0x3a0/0x3a0 [ 36.437655] ? mm_fault_error+0x2c0/0x2c0 [ 36.441772] ? lock_release+0xda0/0xda0 [ 36.445714] ? do_page_fault+0xee/0x720 [ 36.449657] ? _raw_spin_unlock_irq+0x27/0x70 [ 36.454119] ? __do_page_fault+0xc90/0xc90 [ 36.458331] ? lockdep_sys_exit+0x47/0xf0 [ 36.462448] ? syscall_return_slowpath+0x2ad/0x550 [ 36.467347] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.472331] SyS_io_submit+0x27/0x30 [ 36.476018] ? SyS_io_submit+0x27/0x30 [ 36.479882] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 36.484605] RIP: 0033:0x4463b9 [ 36.487772] RSP: 002b:00007f8f40f66d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 36.495446] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004463b9 [ 36.502686] RDX: 0000000020738000 RSI: 0000000000000002 RDI: 00007f8f41769000 [ 36.509925] RBP: 0000000000000000 R08: 00007f8f40f67700 R09: 00007f8f40f67700 [ 36.517161] R10: 00007f8f40f67700 R11: 0000000000000246 R12: 0000000000000000 [ 36.524397] R13: 00007ffe875d20df R14: 00007f8f40f679c0 R15: 0000000000000000 [ 36.531642] 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 [ 36.550720] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801d3f074a0 [ 36.557541] general protection fault: 0000 [#2] SMP KASAN [ 36.557647] ---[ end trace c696249e025035af ]--- [ 36.557651] Kernel panic - not syncing: Fatal exception [ 36.573155] Dumping ftrace buffer: [ 36.576668] (ftrace buffer empty) [ 36.580348] Modules linked in: [ 36.583512] CPU: 0 PID: 9877 Comm: syzkaller448427 Tainted: G D 4.15.0-rc2-mm1+ #39 [ 36.592486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.601815] RIP: 0010:crypto_chacha20_crypt+0x537/0xbd0 [ 36.607142] RSP: 0018:ffff8801d38cf4a0 EFLAGS: 00010246 [ 36.612471] RAX: dffffc0000000000 RBX: 00000000e6000000 RCX: ffffffff8226f20b [ 36.619708] RDX: 0000000000000000 RSI: ffff8801d7692300 RDI: ffff8801d38cf53c [ 36.626945] RBP: ffff8801d38cf6c0 R08: ffffed003a7f6894 R09: ffff8801d3fb4480 [ 36.634181] R10: ffff8801d38cf6e0 R11: ffffed003a7f6893 R12: 0000000000000000 [ 36.641416] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 36.648655] FS: 00007f8f40f67700(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 36.656851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.662700] CR2: 00007f8f41769000 CR3: 00000001c5ebc000 CR4: 00000000001406f0 [ 36.669949] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.677186] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.684429] Call Trace: [ 36.686994] ? crypto_chacha20_setkey+0xc0/0xc0 [ 36.691634] ? __kmalloc+0x162/0x760 [ 36.695317] ? sock_kmalloc+0x112/0x190 [ 36.699257] ? skcipher_recvmsg+0x3f8/0xf20 [ 36.703545] ? sock_recvmsg+0xc9/0x110 [ 36.707394] ? sock_read_iter+0x361/0x560 [ 36.711511] ? aio_read+0x2b0/0x3a0 [ 36.715107] ? do_io_submit+0xf99/0x14f0 [ 36.719133] ? SyS_io_submit+0x27/0x30 [ 36.722990] ? entry_SYSCALL_64_fastpath+0x1f/0x96 [ 36.727893] ? fs_reclaim_acquire+0x20/0x20 [ 36.732183] ? lock_downgrade+0x980/0x980 [ 36.736298] ? lock_acquire+0x1d5/0x580 [ 36.740237] ? af_alg_pull_tsgl+0x8c2/0xc20 [ 36.744533] chacha20_simd+0xe4/0x410 [ 36.748300] ? chacha20_simd+0xe4/0x410 [ 36.752241] ? af_alg_get_rsgl+0x990/0x990 [ 36.756440] ? rcu_note_context_switch+0x710/0x710 [ 36.761334] ? chacha20_dosimd+0x340/0x340 [ 36.765533] ? kasan_kmalloc+0xad/0xe0 [ 36.769392] ? sock_kmalloc+0x112/0x190 [ 36.773339] ? refcount_inc_not_zero+0xfe/0x180 [ 36.777975] ? refcount_add+0x60/0x60 [ 36.781741] ? copy_overflow+0x30/0x30 [ 36.785605] ? lock_sock_nested+0x91/0x110 [ 36.789818] ? trace_hardirqs_on+0xd/0x10 [ 36.793939] skcipher_recvmsg+0x739/0xf20 [ 36.798054] ? skcipher_recvmsg+0x739/0xf20 [ 36.802342] ? lock_downgrade+0x980/0x980 [ 36.806463] ? skcipher_release+0x50/0x50 [ 36.810599] ? selinux_socket_recvmsg+0x36/0x40 [ 36.815236] ? security_socket_recvmsg+0x91/0xc0 [ 36.819958] ? skcipher_release+0x50/0x50 [ 36.824072] sock_recvmsg+0xc9/0x110 [ 36.827754] sock_read_iter+0x361/0x560 [ 36.831696] ? sock_recvmsg+0x110/0x110 [ 36.835636] ? selinux_file_permission+0x82/0x460 [ 36.840450] ? rw_verify_area+0xe5/0x2b0 [ 36.844488] aio_read+0x2b0/0x3a0 [ 36.847909] ? aio_write+0x5a0/0x5a0 [ 36.851590] ? __might_fault+0x110/0x1d0 [ 36.855617] ? lock_downgrade+0x980/0x980 [ 36.859730] ? lock_acquire+0x1d5/0x580 [ 36.863673] ? lock_release+0xda0/0xda0 [ 36.867614] ? refcount_inc_not_zero+0xfe/0x180 [ 36.872247] ? refcount_add+0x60/0x60 [ 36.876016] ? __might_sleep+0x95/0x190 [ 36.879958] do_io_submit+0xf99/0x14f0 [ 36.883809] ? do_io_submit+0xf99/0x14f0 [ 36.887845] ? aio_read+0x3a0/0x3a0 [ 36.891439] ? mm_fault_error+0x2c0/0x2c0 [ 36.895555] ? lock_release+0xda0/0xda0 [ 36.899497] ? do_page_fault+0xee/0x720 [ 36.903439] ? __do_page_fault+0xc90/0xc90 [ 36.907655] ? lockdep_sys_exit+0x47/0xf0 [ 36.911771] ? syscall_return_slowpath+0x2ad/0x550 [ 36.916672] ? perf_trace_sys_enter+0xcb0/0xcb0 [ 36.921309] SyS_io_submit+0x27/0x30 [ 36.924987] ? SyS_io_submit+0x27/0x30 [ 36.928845] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 36.933566] RIP: 0033:0x4463b9 [ 36.936722] RSP: 002b:00007f8f40f66d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 36.944396] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004463b9 [ 36.951641] RDX: 0000000020738000 RSI: 0000000000000002 RDI: 00007f8f41769000 [ 36.958878] RBP: 0000000000000000 R08: 00007f8f40f67700 R09: 00007f8f40f67700 [ 36.966133] R10: 00007f8f40f67700 R11: 0000000000000246 R12: 0000000000000000 [ 36.973368] R13: 00007ffe875d20df R14: 00007f8f40f679c0 R15: 0000000000000000 [ 36.980613] 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 [ 36.999690] RIP: crypto_chacha20_crypt+0x537/0xbd0 RSP: ffff8801d38cf4a0 [ 37.006529] Dumping ftrace buffer: [ 37.010077] (ftrace buffer empty) [ 37.013764] Kernel Offset: disabled [ 37.017366] Rebooting in 86400 seconds..