ffmpeg: fix CVE-2024-36617

FFmpeg n6.1.1 has an integer overflow vulnerability in the FFmpeg CAF decoder.

(From OE-Core rev: aec2ad743893d72d46c79701a0dac982931e3171)

Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2024-36617.patch

@@ -0,0 +1,38 @@
+From f0e780370cc1c437d64f10d326b1d656ef490b5f Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Sat, 30 Sep 2023 00:38:17 +0200
+Subject: [PATCH 4/4] avformat/cafdec: dont seek beyond 64bit
+
+Fixes: signed integer overflow: 64 + 9223372036854775807 cannot be represented in type 'long long'
+Fixes: 51896/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-6418242730328064
+Fixes: 62276/clusterfuzz-testcase-minimized-ffmpeg_dem_CAF_fuzzer-6418242730328064
+
+Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+(cherry picked from commit d973fcbcc2f944752ff10e6a76b0b2d9329937a7)
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+
+CVE: CVE-2024-36617
+
+Upstream-Status: Backport [https://github.com/ffmpeg/ffmpeg/commit/f0e780370cc1c437d64f10d326b1d656ef490b5f]
+
+Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
+---
+ libavformat/cafdec.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libavformat/cafdec.c b/libavformat/cafdec.c
+index d5668bf..aa56a5e 100644
+--- a/libavformat/cafdec.c
++++ b/libavformat/cafdec.c
+@@ -220,7 +220,7 @@ static int read_pakt_chunk(AVFormatContext *s, int64_t size)
+         }
+     }
+
+-    if (avio_tell(pb) - ccount > size) {
++    if (avio_tell(pb) - ccount > size || size > INT64_MAX - ccount) {
+         av_log(s, AV_LOG_ERROR, "error reading packet table\n");
+         return AVERROR_INVALIDDATA;
+     }
+--
+2.40.0

meta/recipes-multimedia/ffmpeg/ffmpeg_5.0.1.bb

@@ -46,6 +46,7 @@ SRC_URI = "https://www.ffmpeg.org/releases/${BP}.tar.xz \
            file://CVE-2025-0518.patch \
            file://CVE-2024-36613.patch \
            file://CVE-2024-36616.patch \
+           file://CVE-2024-36617.patch \
           "
 
 SRC_URI[sha256sum] = "ef2efae259ce80a240de48ec85ecb062cecca26e4352ffb3fda562c21a93007b"