On Thu, Jun 27, 2024 at 3:57 AM Kacper Michajłow <[email protected]> wrote:
> Fixes use of uninitialized value, reported by MSAN. Specifically in > jpegxl parser. > > Found by OSS-Fuzz. > > Signed-off-by: Kacper Michajłow <[email protected]> > --- > libavformat/img2dec.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/libavformat/img2dec.c b/libavformat/img2dec.c > index ba52353074..c667d8574c 100644 > --- a/libavformat/img2dec.c > +++ b/libavformat/img2dec.c > @@ -549,6 +549,8 @@ int ff_img_read_packet(AVFormatContext *s1, AVPacket > *pkt) > } > } > > + memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE); > + > if (ret[0] <= 0 || ret[1] < 0 || ret[2] < 0) { > if (ret[0] < 0) { > res = ret[0]; > -- > 2.43.0 > > Isn't this done generically already? Otherwise this fix is just fixing one single case of numerous others not covered. > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". > _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
