[PATCH 0/9] barebox KASan support

Sascha Hauer s.hauer at pengutronix.de
Mon Sep 28 11:06:33 EDT 2020


On Mon, Sep 28, 2020 at 04:33:21PM +0200, Ahmad Fatoum wrote:
> Hello Sascha,
> 
> On 9/18/20 10:45 AM, Sascha Hauer wrote:
> > This series adds KASan support to barebox. We already have ASan support
> > for sandbox which uses libasan, this time we get KASan for use on real
> > hardware. The KASan support is based on the Kernel code and contains the
> > subset of features we need for barebox. KASan is currently supported on
> > ARM(32/64) only and requires a supported allocator. Currently only the
> > TLSF allocator is supported.
> 
> Should the md/mw/memcpy commands be exempt from KASAN checks?

I asked myself the same question. For now I decided that including these
commands in KASan checks helps debugging KASan. You can easily trigger a
KASan exception with them. Also you shouldn't have any business
manipulating the malloc area outside the allocated regions.

Sascha


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