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avcodec/vorbisenc: fix leak if av_mallocz failed

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In put_main_header(), av_mallocz() allocates memory to local variable
buffer, buffer leaks if av_mallocz() to *out failed. Add av_free(buffer)
before return error code.

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
2025-06-27 22:09:16 +08:00
committed by Michael Niedermayer
parent 7d38486975
commit 40a3d35da6
1 changed files with 3 additions and 1 deletions
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4
libavcodec/vorbisenc.c
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@ -740,8 +740,10 @@ static int put_main_header(vorbis_enc_context *venc, uint8_t **out)
len = hlens[0] + hlens[1] + hlens[2]; len = hlens[0] + hlens[1] + hlens[2];
p = *out = av_mallocz(64 + len + len/255); p = *out = av_mallocz(64 + len + len/255);
if (!p) if (!p) {
av_freep(&buffer);
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
}
*p++ = 2; *p++ = 2;
p += av_xiphlacing(p, hlens[0]); p += av_xiphlacing(p, hlens[0]);