[info] Using makefile-style concurrent boot in runlevel 2.
[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[    9.371026] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   28.664492] random: crng init done
Warning: Permanently added '10.128.10.23' (ECDSA) to the list of known hosts.
executing program
[   49.995452] ------------[ cut here ]------------
[   50.000223] WARNING: CPU: 0 PID: 2113 at mm/percpu.c:892 pcpu_alloc+0x7aa/0xad0
[   50.007742] illegal size (32816) or align (8) for percpu allocation
[   50.014129] Kernel panic - not syncing: panic_on_warn set ...
[   50.014129] 
[   50.021467] CPU: 0 PID: 2113 Comm: syz-executor146 Not tainted 4.9.124+ #32
[   50.028542]  ffff8801ca1b79a0 ffffffff81af4529 ffffffff82838de0 00000000ffffffff
[   50.036537]  0000000000000000 0000000000000000 000000000000037c ffff8801ca1b7a60
[   50.044534]  ffffffff813f1b55 0000000041b58ab3 ffffffff82c2889b ffffffff813f1996
[   50.052520] Call Trace:
[   50.055079]  [<ffffffff81af4529>] dump_stack+0xc1/0x128
[   50.060422]  [<ffffffff813f1b55>] panic+0x1bf/0x39f
[   50.065410]  [<ffffffff813f1996>] ? add_taint.cold.6+0x16/0x16
[   50.071354]  [<ffffffff813f1e09>] ? __warn.cold.9+0xa6/0x17f
[   50.077122]  [<ffffffff8146ca1a>] ? pcpu_alloc+0x7aa/0xad0
[   50.082720]  [<ffffffff813f1e24>] __warn.cold.9+0xc1/0x17f
[   50.088319]  [<ffffffff814e4f3f>] ? kasan_kmalloc+0xaf/0xc0
[   50.094003]  [<ffffffff810dcd52>] warn_slowpath_fmt+0xc2/0x100
[   50.099945]  [<ffffffff810dcc90>] ? __warn+0x50/0x50
[   50.105023]  [<ffffffff8146ca1a>] pcpu_alloc+0x7aa/0xad0
[   50.110447]  [<ffffffff81b5859b>] ? check_preemption_disabled+0x3b/0x170
[   50.117259]  [<ffffffff8146c270>] ? pcpu_populate_chunk+0x7e0/0x7e0
[   50.123636]  [<ffffffff81b5859b>] ? check_preemption_disabled+0x3b/0x170
[   50.130449]  [<ffffffff814e4cc5>] ? kasan_unpoison_shadow+0x35/0x50
[   50.136824]  [<ffffffff814e4f3f>] ? kasan_kmalloc+0xaf/0xc0
[   50.142558]  [<ffffffff814e10ad>] ? __kmalloc+0x11d/0x300
[   50.148082]  [<ffffffff8146cd67>] __alloc_percpu_gfp+0x27/0x30
[   50.154029]  [<ffffffff813adb3f>] htab_map_alloc+0x75f/0xec0
[   50.159800]  [<ffffffff8139871a>] SyS_bpf+0x16ba/0x2620
[   50.165135]  [<ffffffff810b4601>] ? __do_page_fault+0x4c1/0xc00
[   50.171162]  [<ffffffff81397060>] ? bpf_prog_get+0x20/0x20
[   50.176757]  [<ffffffff811f854a>] ? up_read+0x1a/0x40
[   50.181916]  [<ffffffff810b47dd>] ? __do_page_fault+0x69d/0xc00
[   50.188162]  [<ffffffff810053f8>] ? do_syscall_64+0x48/0x480
[   50.193930]  [<ffffffff81397060>] ? bpf_prog_get+0x20/0x20
[   50.199528]  [<ffffffff8100554f>] do_syscall_64+0x19f/0x480
[   50.205217]  [<ffffffff8278ba53>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
[   50.212448] Dumping ftrace buffer:
[   50.216024]    (ftrace buffer empty)
[   50.219711] Kernel Offset: disabled
[   50.223317] Rebooting in 86400 seconds..