On 5/5/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > Reference: Table 8: Interpretation of valid BITPIX value from FITS standard > 4.0 > Fixes: runtime error: division by zero > Fixes: > 14581/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FITS_fuzzer-5652382425284608 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/fits.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/libavcodec/fits.c b/libavcodec/fits.c > index 365347fc64..ad73ab70de 100644 > --- a/libavcodec/fits.c > +++ b/libavcodec/fits.c > @@ -138,6 +138,17 @@ int avpriv_fits_header_parse_line(void *avcl, > FITSHeader *header, const uint8_t > case STATE_BITPIX: > CHECK_KEYWORD("BITPIX"); > CHECK_VALUE("BITPIX", bitpix); > + > + switch(header->bitpix) { > + case 8: > + case 16: > + case 32: case -32: > + case 64: case -64: break; > + default: > + av_log(avcl, AV_LOG_ERROR, "invalid value of BITPIX %d\n", > header->bitpix); \ > + return AVERROR_INVALIDDATA; > + } > + > dict_set_if_not_null(metadata, keyword, value); > > header->state = STATE_NAXIS; > -- > 2.21.0
OK _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".