[....] Starting enhanced syslogd: rsyslogd[ 11.073269] audit: type=1400 audit(1515127014.178:5): avc: denied { syslog } for pid=3311 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: [ 17.092162] audit: type=1400 audit(1515127020.196:6): avc: denied { map } for pid=3451 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 '10.128.0.14' (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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.248957] audit: type=1400 audit(1515127026.353:7): avc: denied { map } for pid=3465 comm="syzkaller980128" path="/root/syzkaller980128702" 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 [ 23.376430] BUG: unable to handle kernel paging request at ffffc90001a91000 [ 23.383567] IP: memset_erms+0x9/0x10 [ 23.387247] PGD 1db12c067 P4D 1db12c067 PUD 1db12d067 PMD 1c02b7067 PTE 0 [ 23.394149] Oops: 0002 [#1] SMP KASAN [ 23.397918] Dumping ftrace buffer: [ 23.401421] (ftrace buffer empty) [ 23.405099] Modules linked in: [ 23.408260] CPU: 0 PID: 3628 Comm: syzkaller980128 Not tainted 4.15.0-rc6-next-20180103+ #87 [ 23.416798] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.426120] RIP: 0010:memset_erms+0x9/0x10 [ 23.430327] RSP: 0018:ffff8801bfa878d8 EFLAGS: 00010246 [ 23.435657] RAX: fffff52004352080 RBX: ffffc90001a9001f RCX: 000000001ffff010 [ 23.442897] RDX: 000000001ffffff1 RSI: 0000000000000080 RDI: ffffc90001a91000 [ 23.450134] RBP: ffff8801bfa878f8 R08: fffff52004352002 R09: ffffc90001a9001f [ 23.457370] R10: 0000000000000000 R11: fffff52004352001 R12: 000000001ffffff1 [ 23.464605] R13: 0000000000000080 R14: ffffffff8646aed0 R15: 0000000000000008 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.471844] FS: 0000000000000000(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000 [ 23.480037] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.485885] CR2: ffffc90001a91000 CR3: 0000000005e22001 CR4: 00000000001606f0 [ 23.493124] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.500448] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.507693] Call Trace: [ 23.510250] ? memset+0x31/0x40 [ 23.513507] snd_pcm_format_set_silence+0x13f/0x4b0 [ 23.518496] snd_pcm_oss_sync+0x4c3/0x710 [ 23.522612] ? fcntl_setlk+0xc40/0xc40 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.526467] ? snd_pcm_oss_sync+0x710/0x710 [ 23.530756] snd_pcm_oss_release+0x20b/0x280 [ 23.535132] __fput+0x291/0x6e0 [ 23.538381] ____fput+0x15/0x20 [ 23.541628] task_work_run+0x122/0x1a0 [ 23.545485] do_exit+0x7f4/0x2da0 [ 23.548910] ? mm_update_next_owner+0x690/0x690 [ 23.553547] ? find_held_lock+0x35/0x1e0 [ 23.557580] ? get_signal+0x644/0x1460 [ 23.561433] ? lock_downgrade+0x860/0x860 [ 23.565549] do_group_exit+0x108/0x320 [ 23.569403] get_signal+0x5e9/0x1460 [ 23.573088] do_signal+0x7f/0x1980 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.576596] ? _raw_spin_unlock_irq+0x27/0x70 [ 23.581063] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.586048] ? trace_hardirqs_on+0xd/0x10 [ 23.590163] ? setup_sigcontext+0x7d0/0x7d0 [ 23.594451] ? finish_task_switch+0x14f/0x5c0 [ 23.598911] ? finish_task_switch+0x124/0x5c0 [ 23.603373] ? __schedule+0x858/0x1e10 [ 23.607230] ? SyS_futex+0x1fd/0x2b0 [ 23.610911] ? fput+0xd2/0x140 [ 23.614072] ? exit_to_usermode_loop+0x3f/0x210 [ 23.618709] exit_to_usermode_loop+0x1aa/0x210 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.623262] syscall_return_slowpath+0x383/0x430 [ 23.628418] entry_SYSCALL_64_fastpath+0x98/0x9a [ 23.633136] RIP: 0033:0x449bc9 [ 23.636292] RSP: 002b:00007feb51184da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 23.643964] RAX: fffffffffffffe00 RBX: 00000000006dbc3c RCX: 0000000000449bc9 [ 23.651201] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dbc3c [ 23.658440] RBP: 00000000006dbc38 R08: 0000000000000000 R09: 0000000000000000 [ 23.665676] R10: 0000000000000000 R11: 0000000000000246 R12: 234423436d63702f executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 23.672913] R13: 646e732f7665642f R14: 7073642f7665642f R15: 000000000000000b [ 23.680705] Code: 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 f3 48 ab 89 d1 f3 aa 4c 89 c8 c3 90 49 89 f9 40 88 f0 48 89 d1 aa 4c 89 c8 c3 90 49 89 fa 40 0f b6 ce 48 b8 01 01 01 01 01 [ 23.699762] RIP: memset_erms+0x9/0x10 RSP: ffff8801bfa878d8 [ 23.705446] CR2: ffffc90001a91000 [ 23.708867] ---[ end trace 834aab368228904d ]--- [ 23.713586] Kernel panic - not syncing: Fatal exception [ 23.719331] Dumping ftrace buffer: [ 23.722839] (ftrace buffer empty) [ 23.726516] Kernel Offset: disabled [ 23.730110] Rebooting in 86400 seconds..