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freerdp3: fix CVE-2026-29775

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Details: https://nvd.nist.gov/vuln/detail/CVE-2026-29775

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>
This commit is contained in:
Ankur Tyagi
2026-04-09 19:09:12 +12:00
committed by Anuj Mittal
parent 2d96f24f2d
commit 1bc75cd389
2 changed files with 31 additions and 0 deletions
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meta-oe/recipes-support/freerdp/freerdp3/CVE-2026-29775.patch
+30
View File
@@ -0,0 +1,30 @@
From e4bfcb3197787e7af4246366b643c16de99f56a2 Mon Sep 17 00:00:00 2001
From: Armin Novak <armin.novak@thincast.com>
Date: Sat, 28 Feb 2026 11:38:55 +0100
Subject: [PATCH] [cache,bitmap] overallocate bitmap cache
(cherry picked from commit ffad58fd2b329efd81a3239e9d7e3c927b8e503f)
CVE: CVE-2026-29775
Upstream-Status: Backport [https://github.com/FreeRDP/FreeRDP/commit/ffad58fd2b329efd81a3239e9d7e3c927b8e503f]
Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
---
libfreerdp/cache/bitmap.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/libfreerdp/cache/bitmap.c b/libfreerdp/cache/bitmap.c
index dd5ae1d71..0d694dd3f 100644
--- a/libfreerdp/cache/bitmap.c
+++ b/libfreerdp/cache/bitmap.c
@@ -364,7 +364,10 @@ rdpBitmapCache* bitmap_cache_new(rdpContext* context)
const UINT32 BitmapCacheV2NumCells =
freerdp_settings_get_uint32(settings, FreeRDP_BitmapCacheV2NumCells);
bitmapCache->context = context;
- bitmapCache->cells = (BITMAP_V2_CELL*)calloc(BitmapCacheV2NumCells, sizeof(BITMAP_V2_CELL));
+
+ /* overallocate by 1. older RDP servers do send a off by 1 cache index. */
+ bitmapCache->cells =
+ (BITMAP_V2_CELL*)calloc(BitmapCacheV2NumCells + 1ull, sizeof(BITMAP_V2_CELL));
if (!bitmapCache->cells)
goto fail;
meta-oe/recipes-support/freerdp/freerdp3_3.4.0.bb
+1
View File
@@ -32,6 +32,7 @@ SRC_URI = "git://github.com/FreeRDP/FreeRDP.git;branch=master;protocol=https \
file://CVE-2026-24682.patch \
file://CVE-2026-24683.patch \
file://CVE-2026-29774.patch \
file://CVE-2026-29775.patch \
"
S = "${WORKDIR}/git"