PR #20421 opened by Tong Wu (tong1wu)
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20421
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20421.patch
The max_frame_size in byte will be filled in
VAEncMiscParameterBufferMaxFrameSize which receives size in bit.
This requires max_frame_size * 8.
Signed-off-by: Tong Wu <wutong1...@outlook.com>
>From 971e1dec185529f05f33076c2b6eb1b1210b91e1 Mon Sep 17 00:00:00 2001
From: Tong Wu <wutong1...@outlook.com>
Date: Thu, 4 Sep 2025 06:51:24 +0800
Subject: [PATCH] avcodec/vaapi_encode: avoid potential overflow
The max_frame_size in byte will be filled in
VAEncMiscParameterBufferMaxFrameSize which receives size in bit.
This requires max_frame_size * 8.
Signed-off-by: Tong Wu <wutong1...@outlook.com>
---
libavcodec/vaapi_encode.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/vaapi_encode.h b/libavcodec/vaapi_encode.h
index 8e3eab9f27..1fa1e99a31 100644
--- a/libavcodec/vaapi_encode.h
+++ b/libavcodec/vaapi_encode.h
@@ -360,7 +360,7 @@ int ff_vaapi_encode_close(AVCodecContext *avctx);
{ "max_frame_size", \
"Maximum frame size (in bytes)",\
OFFSET(common.max_frame_size), AV_OPT_TYPE_INT, \
- { .i64 = 0 }, 0, INT_MAX, FLAGS }
+ { .i64 = 0 }, 0, INT_MAX / 8, FLAGS }
#define VAAPI_ENCODE_RC_MODE(name, desc) \
{ #name, desc, 0, AV_OPT_TYPE_CONST, { .i64 = RC_MODE_ ## name }, \
--
2.49.1
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