diff options
Diffstat (limited to 'meta/recipes-bsp/grub/files/0027-libgcrypt-mpi-Fix-possible-NULL-dereference.patch')
| -rw-r--r-- | meta/recipes-bsp/grub/files/0027-libgcrypt-mpi-Fix-possible-NULL-dereference.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/0027-libgcrypt-mpi-Fix-possible-NULL-dereference.patch b/meta/recipes-bsp/grub/files/0027-libgcrypt-mpi-Fix-possible-NULL-dereference.patch new file mode 100644 index 0000000000..08299d021e --- /dev/null +++ b/meta/recipes-bsp/grub/files/0027-libgcrypt-mpi-Fix-possible-NULL-dereference.patch @@ -0,0 +1,33 @@ +From d26c8771293637b0465f2cb67d97cb58bacc62da Mon Sep 17 00:00:00 2001 +From: Darren Kenny <darren.kenny@oracle.com> +Date: Thu, 26 Nov 2020 10:41:54 +0000 +Subject: [PATCH] libgcrypt/mpi: Fix possible NULL dereference + +The code in gcry_mpi_scan() assumes that buffer is not NULL, but there +is no explicit check for that, so we add one. + +Fixes: CID 73757 + +Signed-off-by: Darren Kenny <darren.kenny@oracle.com> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> + +Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=ae0f3fabeba7b393113d5dc185b6aff9b728136d] +Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com> +--- + grub-core/lib/libgcrypt/mpi/mpicoder.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/grub-core/lib/libgcrypt/mpi/mpicoder.c b/grub-core/lib/libgcrypt/mpi/mpicoder.c +index 7ecad27..6fe3891 100644 +--- a/grub-core/lib/libgcrypt/mpi/mpicoder.c ++++ b/grub-core/lib/libgcrypt/mpi/mpicoder.c +@@ -379,6 +379,9 @@ gcry_mpi_scan (struct gcry_mpi **ret_mpi, enum gcry_mpi_format format, + unsigned int len; + int secure = (buffer && gcry_is_secure (buffer)); + ++ if (!buffer) ++ return gcry_error (GPG_ERR_INV_ARG); ++ + if (format == GCRYMPI_FMT_SSH) + len = 0; + else |