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home:dirkmueller:acdc:sp5-rebuild
ffmpeg.34108
ffmpeg-CVE-2022-3341.patch
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File ffmpeg-CVE-2022-3341.patch of Package ffmpeg.34108
diff --unified --recursive --text --new-file --color ffmpeg-4.4.3.old/libavformat/nutdec.c ffmpeg-4.4.3.new/libavformat/nutdec.c --- ffmpeg-4.4.3.old/libavformat/nutdec.c 2022-10-10 03:04:43.000000000 +0800 +++ ffmpeg-4.4.3.new/libavformat/nutdec.c 2023-01-20 15:33:38.060002545 +0800 @@ -358,8 +358,12 @@ ret = AVERROR(ENOMEM); goto fail; } - for (i = 0; i < stream_count; i++) - avformat_new_stream(s, NULL); + for (i = 0; i < stream_count; i++) { + if (!avformat_new_stream(s, NULL)) { + ret = AVERROR(ENOMEM); + goto fail; + } + } return 0; fail: @@ -807,19 +811,23 @@ NUTContext *nut = s->priv_data; AVIOContext *bc = s->pb; int64_t pos; - int initialized_stream_count; + int initialized_stream_count, ret; nut->avf = s; /* main header */ pos = 0; + ret = 0; do { + if (ret == AVERROR(ENOMEM)) + return ret; + pos = find_startcode(bc, MAIN_STARTCODE, pos) + 1; if (pos < 0 + 1) { av_log(s, AV_LOG_ERROR, "No main startcode found.\n"); goto fail; } - } while (decode_main_header(nut) < 0); + } while ((ret = decode_main_header(nut)) < 0); /* stream headers */ pos = 0;
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