Re: BUG: unable to handle kernel paging request in hmac_init_tfm

From: Eric Biggers
Date: Wed Dec 20 2017 - 18:09:59 EST


On Mon, Dec 18, 2017 at 11:36:01AM -0800, syzbot wrote:
> Hello,
>
> syzkaller hit the following crash on
> 6084b576dca2e898f5c101baef151f7bfdbb606d
> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached

FYI, in linux-next KASAN and other memory debugging options are now behind
CONFIG_DEBUG_MEMORY. So, I think KASAN isn't getting turned on anymore, despite
the CONFIG_KASAN=y. (Patch was "lib/: make "Memory Debugging" a menuconfig to
ease disabling it all".)

Eric