diff options
Diffstat (limited to 'meta/recipes-support/gmp/gmp/cve-2021-43618.patch')
| -rw-r--r-- | meta/recipes-support/gmp/gmp/cve-2021-43618.patch | 27 |
1 files changed, 27 insertions, 0 deletions
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 <ross.burton@arm.com> + +# HG changeset patch +# User Marco Bodrato <bodrato@mail.dm.unipi.it> +# 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) + { |