ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sat Mar 7 15:42:58 2020 +0100| [1812352d767ccf5431aa440123e2e260a4db2726] | committer: Michael Niedermayer
avcodec/cbs_jpeg: Check length for SOS Fixes: out of array access Fixes: 19734/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5673507031875584 Fixes: 19353/clusterfuzz-testcase-minimized-ffmpeg_BSF_TRACE_HEADERS_fuzzer-5703944462663680 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1812352d767ccf5431aa440123e2e260a4db2726 --- libavcodec/cbs_jpeg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/cbs_jpeg.c b/libavcodec/cbs_jpeg.c index 6bbce5f89b..89512a26bb 100644 --- a/libavcodec/cbs_jpeg.c +++ b/libavcodec/cbs_jpeg.c @@ -197,6 +197,9 @@ static int cbs_jpeg_split_fragment(CodedBitstreamContext *ctx, if (marker == JPEG_MARKER_SOS) { length = AV_RB16(frag->data + start); + if (length > end - start) + return AVERROR_INVALIDDATA; + data_ref = NULL; data = av_malloc(end - start + AV_INPUT_BUFFER_PADDING_SIZE); _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
