[....] Starting enhanced syslogd: rsyslogd[ 12.214486] audit: type=1400 audit(1515537111.560:5): avc: denied { syslog } for pid=3343 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: [ 18.997317] audit: type=1400 audit(1515537118.343:6): avc: denied { map } for pid=3485 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 '10.128.15.211' (ECDSA) to the list of known hosts. [ 25.459767] audit: type=1400 audit(1515537124.805:7): avc: denied { map } for pid=3500 comm="syzkaller272199" path="/root/syzkaller272199208" 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 [ 25.469244] WARNING: CPU: 1 PID: 1467 at drivers/staging/android/ion/ion.c:122 ion_buffer_destroy+0xd4/0x190 [ 25.469250] Kernel panic - not syncing: panic_on_warn set ... [ 25.469250] [ 25.469259] CPU: 1 PID: 1467 Comm: ion_system_heap Not tainted 4.15.0-rc6-mm1+ #52 [ 25.469262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.469266] Call Trace: [ 25.469281] dump_stack+0x194/0x257 [ 25.469295] ? arch_local_irq_restore+0x53/0x53 [ 25.469309] ? vsnprintf+0x1ed/0x1900 [ 25.469325] panic+0x1e4/0x41c [ 25.469334] ? refcount_error_report+0x214/0x214 [ 25.469343] ? show_regs_print_info+0x18/0x18 [ 25.469361] ? __warn+0x1c1/0x200 [ 25.469374] ? ion_buffer_destroy+0xd4/0x190 [ 25.469380] __warn+0x1dc/0x200 [ 25.469388] ? ion_buffer_destroy+0xd4/0x190 [ 25.469400] report_bug+0x211/0x2d0 [ 25.469416] fixup_bug.part.11+0x37/0x80 [ 25.469425] do_error_trap+0x2d7/0x3e0 [ 25.469438] ? math_error+0x400/0x400 [ 25.469454] ? find_held_lock+0x35/0x1d0 [ 25.469474] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.469489] do_invalid_op+0x1b/0x20 [ 25.469497] invalid_op+0x22/0x40 [ 25.469504] RIP: 0010:ion_buffer_destroy+0xd4/0x190 [ 25.469508] RSP: 0018:ffff8801d3a67d28 EFLAGS: 00010293 [ 25.469515] RAX: ffff8801d3a5a700 RBX: ffff8801be8c3d00 RCX: ffffffff84155094 [ 25.469519] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8801d3847378 [ 25.469524] RBP: ffff8801d3a67d50 R08: 0000000000000000 R09: 1ffff1003a74cf8a [ 25.469528] R10: ffff8801d3a67c18 R11: 0000000000000000 R12: ffffffff86e4c680 [ 25.469532] R13: ffff8801d3847340 R14: ffff8801be8c3d20 R15: 0000000000000001 [ 25.469550] ? ion_buffer_destroy+0xd4/0x190 [ 25.469565] ? ion_buffer_destroy+0xd4/0x190 [ 25.469578] ion_heap_deferred_free+0x290/0x650 [ 25.469594] ? ion_heap_shrink_scan+0x1c0/0x1c0 [ 25.469606] ? schedule+0xf5/0x430 [ 25.469617] ? __schedule+0x2060/0x2060 [ 25.469624] ? do_wait_intr_irq+0x3e0/0x3e0 [ 25.469631] ? __lockdep_init_map+0xe4/0x650 [ 25.469640] ? do_raw_spin_trylock+0x190/0x190 [ 25.469648] ? lockdep_init_map+0x9/0x10 [ 25.469655] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.469665] ? prepare_to_wait+0x4d0/0x4d0 [ 25.469675] ? trace_hardirqs_on+0xd/0x10 [ 25.469684] ? __kthread_parkme+0x175/0x240 [ 25.469697] kthread+0x33c/0x400 [ 25.469704] ? ion_heap_shrink_scan+0x1c0/0x1c0 [ 25.469710] ? kthread_stop+0x7a0/0x7a0 [ 25.469721] ret_from_fork+0x24/0x30 [ 25.486155] Dumping ftrace buffer: [ 25.486230] (ftrace buffer empty) [ 25.486233] Kernel Offset: disabled [ 25.727154] Rebooting in 86400 seconds..