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grub: fix a memory leak

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This patch adds a fix for a memory leak in grub's disk/ldm.
It is a part of a security series [1].

[1] https://lists.gnu.org/archive/html/grub-devel/2021-03/msg00007.html

(From OE-Core rev: 444a690c28fa78147273213f2ae19b1a67027a71)

Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Marta Rybczynska
2022-02-18 11:05:25 +01:00
committed by Richard Purdie
parent da4ba2d04e
commit b854e27c58
2 changed files with 29 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-bsp/grub/files/0017-disk-ldm-If-failed-then-free-vg-variable-too.patch
+28
View File
@@ -0,0 +1,28 @@
From 253485e8df3c9dedac848567e638157530184295 Mon Sep 17 00:00:00 2001
From: Paulo Flabiano Smorigo <pfsmorigo@canonical.com>
Date: Mon, 7 Dec 2020 10:07:47 -0300
Subject: [PATCH] disk/ldm: If failed then free vg variable too
Fixes: CID 73809
Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=e0b83df5da538d2a38f770e60817b3a4b9d5b4d7]
Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com>
---
grub-core/disk/ldm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/grub-core/disk/ldm.c b/grub-core/disk/ldm.c
index 428415f..54713f4 100644
--- a/grub-core/disk/ldm.c
+++ b/grub-core/disk/ldm.c
@@ -199,6 +199,7 @@ make_vg (grub_disk_t disk,
{
grub_free (vg->uuid);
grub_free (vg->name);
+ grub_free (vg);
return NULL;
}
grub_memcpy (vg->uuid, label->group_guid, LDM_GUID_STRLEN);
meta/recipes-bsp/grub/grub2.inc
+1
View File
@@ -63,6 +63,7 @@ SRC_URI = "${GNU_MIRROR}/grub/grub-${PV}.tar.gz \
file://0014-zstd-Initialize-seq_t-structure-fully.patch \
file://0015-kern-partition-Check-for-NULL-before-dereferencing-i.patch \
file://0016-disk-ldm-Make-sure-comp-data-is-freed-before-exiting.patch \
file://0017-disk-ldm-If-failed-then-free-vg-variable-too.patch \
"
SRC_URI[md5sum] = "5ce674ca6b2612d8939b9e6abed32934"
SRC_URI[sha256sum] = "f10c85ae3e204dbaec39ae22fa3c5e99f0665417e91c2cb49b7e5031658ba6ea"