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avformat/rtmpproto: fix rmtp packet leak in gen_connect()

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In libavformat/rtmpproto.c:gen_connect(), if check on string length
or check on codec fourcc failed, ff_rtmp_packet_create() allocated
data in pkt would leak. Add ff_rtmp_packet_destory before return error
code.

Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Reviewed-by: Zhao Zhili <quinkblack@foxmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Lidong Yan
2025-06-14 16:33:50 +08:00
committed by Michael Niedermayer
parent 0d9f680b69
commit b65fece0aa
1 changed files with 2 additions and 0 deletions
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2
libavformat/rtmpproto.c
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@ -347,6 +347,7 @@ static int gen_connect(URLContext *s, RTMPContext *rt)
if ((fourcc_str_len + 1) % 5 != 0) {
av_log(s, AV_LOG_ERROR, "Malformed rtmp_enhanched_codecs, "
"should be of the form hvc1[,av01][,vp09][,...]\n");
ff_rtmp_packet_destroy(&pkt);
return AVERROR(EINVAL);
}
@ -370,6 +371,7 @@ static int gen_connect(URLContext *s, RTMPContext *rt)
ff_amf_write_string(&p, fourcc);
} else {
av_log(s, AV_LOG_ERROR, "Unsupported codec fourcc, %.*s\n", 4, fourcc_data);
ff_rtmp_packet_destroy(&pkt);
return AVERROR_PATCHWELCOME;
}