ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun May 5 18:38:33 2019 +0200| [0b5c93b276a14d1990aaabd77410a562f4b242c3] | committer: Michael Niedermayer
avcodec/fits: Check bitpix 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 Reviewed-by: Paul B Mahol <one...@gmail.com> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0b5c93b276a14d1990aaabd77410a562f4b242c3 --- 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; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
