Re: PROBLEM: syzkaller found / pool corruption-overwrite / page in user-area or NULL

Qian Cai
2019-01-11T01:30:55Z

On 1/10/19 5:58 PM, Esme wrote:
> The console debug/stacks/info from just now. The previous config, current kernel from github.
> --
> Esme
>
> [ 75.783231] kasan: CONFIG_KASAN_INLINE enabled
> [ 75.785870] kasan: GPF could be caused by NULL-ptr deref or user memory access
> [ 75.787695] general protection fault: 0000 [#1] SMP KASAN
> [ 75.789084] CPU: 0 PID: 3434 Comm: systemd-journal Not tainted 5.0.0-rc1+ #5
> [ 75.790938] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1ubuntu1 04/01/2014
> [ 75.793150] RIP: 0010:rb_insert_color+0x189/0x1480

What's in that line? Try,

$ ./scripts/faddr2line vmlinux rb_insert_color+0x189/0x1480

What's steps to reproduce this?