On Thu, Mar 11, 2021 at 7:21 AM Jamaluddin, Khairul Rohaizzat <khairul.rohaizzat.jamalud...@intel.com> wrote: > > From: Khairul Rohaizzat Jamaluddin <khairul.rohaizzat.jamalud...@intel.com> > > CVE: > CVE-2021-27645 >
lgtm. Do we need it for dunfell and gatesgarth as well ? > Signed-off-by: Khairul Rohaizzat Jamaluddin > <khairul.rohaizzat.jamalud...@intel.com> > --- > .../glibc/glibc/CVE-2021-27645.patch | 51 +++++++++++++++++++ > meta/recipes-core/glibc/glibc_2.33.bb | 1 + > 2 files changed, 52 insertions(+) > create mode 100644 meta/recipes-core/glibc/glibc/CVE-2021-27645.patch > > diff --git a/meta/recipes-core/glibc/glibc/CVE-2021-27645.patch > b/meta/recipes-core/glibc/glibc/CVE-2021-27645.patch > new file mode 100644 > index 0000000000..26c5c0d2a9 > --- /dev/null > +++ b/meta/recipes-core/glibc/glibc/CVE-2021-27645.patch > @@ -0,0 +1,51 @@ > +From dca565886b5e8bd7966e15f0ca42ee5cff686673 Mon Sep 17 00:00:00 2001 > +From: DJ Delorie <d...@redhat.com> > +Date: Thu, 25 Feb 2021 16:08:21 -0500 > +Subject: [PATCH] nscd: Fix double free in netgroupcache [BZ #27462] > + > +In commit 745664bd798ec8fd50438605948eea594179fba1 a use-after-free > +was fixed, but this led to an occasional double-free. This patch > +tracks the "live" allocation better. > + > +Tested manually by a third party. > + > +Related: RHBZ 1927877 > + > +Reviewed-by: Siddhesh Poyarekar <siddh...@sourceware.org> > +Reviewed-by: Carlos O'Donell <car...@redhat.com> > + > +Upstream-Status: Backport > [https://sourceware.org/git/?p=glibc.git;a=commit;h=dca565886b5e8bd7966e15f0ca42ee5cff686673] > + > +CVE: CVE-2021-27645 > + > +Reviewed-by: Carlos O'Donell <car...@redhat.com> > +Signed-off-by: Khairul Rohaizzat Jamaluddin > <khairul.rohaizzat.jamalud...@intel.com> > +--- > + nscd/netgroupcache.c | 4 ++-- > + 1 file changed, 2 insertions(+), 2 deletions(-) > + > +diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c > +index dba6ceec1b..ad2daddafd 100644 > +--- a/nscd/netgroupcache.c > ++++ b/nscd/netgroupcache.c > +@@ -248,7 +248,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, > request_header *req, > + : NULL); > + ndomain = (ndomain ? newbuf + ndomaindiff > + : NULL); > +- buffer = newbuf; > ++ *tofreep = buffer = newbuf; > + } > + > + nhost = memcpy (buffer + bufused, > +@@ -319,7 +319,7 @@ addgetnetgrentX (struct database_dyn *db, int fd, > request_header *req, > + else if (status == NSS_STATUS_TRYAGAIN && e == ERANGE) > + { > + buflen *= 2; > +- buffer = xrealloc (buffer, buflen); > ++ *tofreep = buffer = xrealloc (buffer, buflen); > + } > + else if (status == NSS_STATUS_RETURN > + || status == NSS_STATUS_NOTFOUND > +-- > +2.27.0 > + > diff --git a/meta/recipes-core/glibc/glibc_2.33.bb > b/meta/recipes-core/glibc/glibc_2.33.bb > index c47826a51e..d0a290822b 100644 > --- a/meta/recipes-core/glibc/glibc_2.33.bb > +++ b/meta/recipes-core/glibc/glibc_2.33.bb > @@ -45,6 +45,7 @@ SRC_URI = "${GLIBC_GIT_URI};branch=${SRCBRANCH};name=glibc > \ > file://0030-powerpc-Do-not-ask-compiler-for-finding-arch.patch \ > > file://0031-x86-Require-full-ISA-support-for-x86-64-level-marker.patch \ > file://0032-string-Work-around-GCC-PR-98512-in-rawmemchr.patch \ > + file://CVE-2021-27645.patch \ > " > S = "${WORKDIR}/git" > B = "${WORKDIR}/build-${TARGET_SYS}" > -- > 2.29.0 > > > >
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