Re: [PATCH] ARM: ubsan: select ARCH_HAS_UBSAN_SANITIZE_ALL

[Florian Fainelli]

On 10/4/22 01:51, Linus Walleij wrote:
> On Wed, Sep 28, 2022 at 7:47 PM Florian Fainelli <f.fainelli@xxxxxxxxx> wrote:
>
> > From: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
> >
> > To enable UBSAN on ARM, this patch enables ARCH_HAS_UBSAN_SANITIZE_ALL
> > from arm confiuration. Basic kernel bootup test is passed on arm with
> > CONFIG_UBSAN_SANITIZE_ALL enabled.
> >
> > Signed-off-by: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
> > [florian: rebased against v6.0-rc7]
> > Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
>
> Pretty cool that it "just works", I was thinking to myself that I
> should try this one
> day. Sorry I was late to look at the patch.
>
> Have you also looked at KCSAN?

Not yet, that would be next. Most often, at least for ARCH_BRCMSTB the 
same hardware and set of drivers run on ARM64 which is typically much 
more feature full, so we get coverage on *SAN features that way.
--
Florian