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SubjectRe: mmotm 2019-08-27-20-39 uploaded (objtool: xen)
On Wed, Aug 28, 2019 at 09:58:37AM -0700, Randy Dunlap wrote:
> On 8/27/19 8:40 PM, akpm@linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2019-08-27-20-39 has been uploaded to
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue. Uploaded at random hopefully
> > more than once a week.
> >
> > You will need quilt to apply these patches to the latest Linus release (5.x
> > or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> >
> > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss,
> > followed by the base kernel version against which this patch series is to
> > be applied.
>
>
>
> drivers/xen/gntdev.o: warning: objtool: gntdev_copy()+0x229: call to __ubsan_handle_out_of_bounds() with UACCESS enabled

Easy one :-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 0c8e17f946cd..6a935ab93149 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -483,6 +483,7 @@ static const char *uaccess_safe_builtin[] = {
"ubsan_type_mismatch_common",
"__ubsan_handle_type_mismatch",
"__ubsan_handle_type_mismatch_v1",
+ "__ubsan_handle_out_of_bounds",
/* misc */
"csum_partial_copy_generic",
"__memcpy_mcsafe",
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