ffmpeg | branch: release/4.4 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Mar 13 00:34:52 2022 +0100| [2a549b2e7d9f3edd4744afe288fcb012daee4a1e] | committer: Michael Niedermayer
avformat/mxfdec: Check count in mxf_read_strong_ref_array() Reviewed-by: Tomas Härdin <tjop...@acc.umu.se> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 3015c556f316d4ab364ed55e8bc97cc0f2cc57a3) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2a549b2e7d9f3edd4744afe288fcb012daee4a1e --- libavformat/mxfdec.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 84ab0cefd7..ba7466f960 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -875,7 +875,13 @@ static int mxf_read_cryptographic_context(void *arg, AVIOContext *pb, int tag, i static int mxf_read_strong_ref_array(AVIOContext *pb, UID **refs, int *count) { - *count = avio_rb32(pb); + unsigned c = avio_rb32(pb); + + //avio_read() used int + if (c > INT_MAX / sizeof(UID)) + return AVERROR_PATCHWELCOME; + *count = c; + av_free(*refs); *refs = av_calloc(*count, sizeof(UID)); if (!*refs) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
