Re: [PATCH] libsanitizer: Do not mention MSan and DFSan in an error message

[Jakub Jelinek <jakub@redhat.com>]

On Thu, Apr 04, 2024 at 02:19:08PM +0200, Andreas Krebbel wrote:
> On 4/4/24 13:38, Ilya Leoshkevich wrote:
> > Bootstrapped and regtested on s390x-redhat-linux.  Ok for master?
> > 
> > 
> > libsanitizer/ChangeLog:
> > 
> > 	* sanitizer_common/sanitizer_linux_s390.cpp (AvoidCVE_2016_2143):
> > 	Do not mention MSan and DFSan, which are not supported by GCC.
> 
> Ok, Thanks!

This then needs to be added to libsanitizer/LOCAL_PATCHES , otherwise
it will disappear on the next merge from upstream.

Though, I must say I'm not entirely convinced the change is worth the
hassle on every libsanitizer merge.

> > diff --git a/libsanitizer/sanitizer_common/sanitizer_linux_s390.cpp b/libsanitizer/sanitizer_common/sanitizer_linux_s390.cpp
> > index 74db831b0aa..65ba825fa97 100644
> > --- a/libsanitizer/sanitizer_common/sanitizer_linux_s390.cpp
> > +++ b/libsanitizer/sanitizer_common/sanitizer_linux_s390.cpp
> > @@ -212,7 +212,7 @@ void AvoidCVE_2016_2143() {
> >      return;
> >    Report(
> >      "ERROR: Your kernel seems to be vulnerable to CVE-2016-2143.  Using ASan,\n"
> > -    "MSan, TSan, DFSan or LSan with such kernel can and will crash your\n"
> > +    "TSan or LSan with such kernel can and will crash your\n"
> >      "machine, or worse.\n"
> >      "\n"
> >      "If you are certain your kernel is not vulnerable (you have compiled it\n"

	Jakub