ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sun Jul 23 18:48:54 2023 +0200| [d5cc9d8dd9eb592f9467a614ef28e6d5c5381e7c] | committer: Michael Niedermayer
avcodec/vmixdec: Check for end of input in decode_dcac() Fixes: Timeout Fixes: 59952/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMIX_fuzzer-6718213736759296 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=d5cc9d8dd9eb592f9467a614ef28e6d5c5381e7c --- libavcodec/vmixdec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/vmixdec.c b/libavcodec/vmixdec.c index b77c90929a..4cc5963e25 100644 --- a/libavcodec/vmixdec.c +++ b/libavcodec/vmixdec.c @@ -115,6 +115,8 @@ static int decode_dcac(AVCodecContext *avctx, if (dc_run > 0) { dc_run--; } else { + if (get_bits_left(dc_gb) < 1) + return AVERROR_INVALIDDATA; dc_v = get_se_golomb_vmix(dc_gb); dc += (unsigned)dc_v; if (!dc_v) @@ -127,6 +129,8 @@ static int decode_dcac(AVCodecContext *avctx, continue; } + if (get_bits_left(ac_gb) < 1) + return AVERROR_INVALIDDATA; ac_v = get_se_golomb_vmix(ac_gb); i = scan[n]; block[i] = ((unsigned)ac_v * factors[i]) >> 4; _______________________________________________ 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".
