ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Wed Feb 17 00:02:04 2021 +0100| [cd3ab3a09b7ea19ffef559efd4aae6292e196b42] | committer: Michael Niedermayer
avcodec/cfhd: Fix negative shift in cfhd_decode() Fixes: left shift of negative value -1 Fixes: 30714/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_fuzzer-4867823371419648 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=cd3ab3a09b7ea19ffef559efd4aae6292e196b42 --- libavcodec/cfhd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c index dfd56ae6ed..1f2ee853c1 100644 --- a/libavcodec/cfhd.c +++ b/libavcodec/cfhd.c @@ -811,7 +811,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint16_t q = s->quantisation; for (i = 0; i < run; i++) { - *coeff_data |= coeff << 8; + *coeff_data |= coeff * 256; *coeff_data++ *= q; } } else { @@ -842,7 +842,7 @@ static int cfhd_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint16_t q = s->quantisation; for (i = 0; i < run; i++) { - *coeff_data |= coeff << 8; + *coeff_data |= coeff * 256; *coeff_data++ *= q; } } else { _______________________________________________ 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".
