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x265/SOURCES/x265-sei-length-crash-fix.p...

30 lines
1.1 KiB

From 8454caf458c5f5d20cce711ff8ea8de55ec1ae50 Mon Sep 17 00:00:00 2001
From: harlanc <hailiang8@staff.weibo.com>
Date: Thu, 1 Dec 2022 07:46:13 +0000
Subject: [PATCH] fix crash when SEI length is variable
---
source/encoder/encoder.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/source/encoder/encoder.cpp b/source/encoder/encoder.cpp
index 0fea6553c..5a3fcafc7 100644
--- a/source/encoder/encoder.cpp
+++ b/source/encoder/encoder.cpp
@@ -1103,6 +1103,12 @@ void Encoder::copyUserSEIMessages(Frame *frame, const x265_picture* pic_in)
input = seiMsg;
else
input = pic_in->userSEI.payloads[i];
+
+ if (frame->m_userSEI.payloads[i].payload && (frame->m_userSEI.payloads[i].payloadSize < input.payloadSize))
+ {
+ delete[] frame->m_userSEI.payloads[i].payload;
+ frame->m_userSEI.payloads[i].payload = NULL;
+ }
if (!frame->m_userSEI.payloads[i].payload)
frame->m_userSEI.payloads[i].payload = new uint8_t[input.payloadSize];
--
2.45.0