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avcodec/sunrast: fix leak in sunrast_decode_frame()

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In sunrast_decode_frame(), we use av_malloc_array() allocates memory
to ptr and ptr2. However if buf_end - buf < 1, this function returns
error code without freeing this memory thus cause a leak. Add av_freep()
before return.

Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Lidong Yan
2025-06-29 14:45:25 +08:00
committed by Michael Niedermayer
parent 7ed5a7094f
commit 98afcd3da7
1 changed files with 3 additions and 1 deletions
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4
libavcodec/sunrast.c
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@ -163,8 +163,10 @@ static int sunrast_decode_frame(AVCodecContext *avctx, AVFrame *p,
x = 0; x = 0;
while (ptr != end && buf < buf_end) { while (ptr != end && buf < buf_end) {
run = 1; run = 1;
if (buf_end - buf < 1) if (buf_end - buf < 1) {
av_freep(&ptr2);
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
}
if ((value = *buf++) == RLE_TRIGGER) { if ((value = *buf++) == RLE_TRIGGER) {
run = *buf++ + 1; run = *buf++ + 1;