From fb3b9a7f668a6ffd56a99e1e8b83cdbad2a4bc66 Mon Sep 17 00:00:00 2001 From: Ross Burton Date: Mon, 22 Nov 2021 11:40:56 +0000 Subject: [PATCH] gmp: fix CVE-2021-43618 Signed-off-by: Ross Burton Signed-off-by: Richard Purdie --- .../gmp/gmp/cve-2021-43618.patch | 27 +++++++++++++++++++ meta/recipes-support/gmp/gmp_6.2.1.bb | 1 + 2 files changed, 28 insertions(+) create mode 100644 meta/recipes-support/gmp/gmp/cve-2021-43618.patch diff --git a/meta/recipes-support/gmp/gmp/cve-2021-43618.patch b/meta/recipes-support/gmp/gmp/cve-2021-43618.patch new file mode 100644 index 0000000000..095fb21eaa --- /dev/null +++ b/meta/recipes-support/gmp/gmp/cve-2021-43618.patch @@ -0,0 +1,27 @@ +CVE: CVE-2021-43618 +Upstream-Status: Backport +Signed-off-by: Ross Burton + +# HG changeset patch +# User Marco Bodrato +# Date 1634836009 -7200 +# Node ID 561a9c25298e17bb01896801ff353546c6923dbd +# Parent e1fd9db13b475209a864577237ea4b9105b3e96e +mpz/inp_raw.c: Avoid bit size overflows + +diff -r e1fd9db13b47 -r 561a9c25298e mpz/inp_raw.c +--- a/mpz/inp_raw.c Tue Dec 22 23:49:51 2020 +0100 ++++ b/mpz/inp_raw.c Thu Oct 21 19:06:49 2021 +0200 +@@ -88,8 +88,11 @@ + + abs_csize = ABS (csize); + ++ if (UNLIKELY (abs_csize > ~(mp_bitcnt_t) 0 / 8)) ++ return 0; /* Bit size overflows */ ++ + /* round up to a multiple of limbs */ +- abs_xsize = BITS_TO_LIMBS (abs_csize*8); ++ abs_xsize = BITS_TO_LIMBS ((mp_bitcnt_t) abs_csize * 8); + + if (abs_xsize != 0) + { diff --git a/meta/recipes-support/gmp/gmp_6.2.1.bb b/meta/recipes-support/gmp/gmp_6.2.1.bb index d5996abd00..e61582afdf 100644 --- a/meta/recipes-support/gmp/gmp_6.2.1.bb +++ b/meta/recipes-support/gmp/gmp_6.2.1.bb @@ -12,6 +12,7 @@ SRC_URI = "https://gmplib.org/download/${BPN}/${BP}${REVISION}.tar.bz2 \ file://use-includedir.patch \ file://0001-Append-the-user-provided-flags-to-the-auto-detected-.patch \ file://0001-confiure.ac-Believe-the-cflags-from-environment.patch \ + file://cve-2021-43618.patch \ " SRC_URI[md5sum] = "28971fc21cf028042d4897f02fd355ea" SRC_URI[sha256sum] = "eae9326beb4158c386e39a356818031bd28f3124cf915f8c5b1dc4c7a36b4d7c" -- 2.40.1