ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Apr 15 20:08:22 2021 +0200| [7b3881f0da6da00cb6b5b123328e2fbfca936c47] | committer: Michael Niedermayer
avcodec/faxcompr: Check remaining bits on error in decode_group3_1d_line() Fixes: Timeout Fixes: 32886/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-4779761466474496 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7b3881f0da6da00cb6b5b123328e2fbfca936c47 --- libavcodec/faxcompr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/faxcompr.c b/libavcodec/faxcompr.c index 3dd64cf730..7bf11d80ca 100644 --- a/libavcodec/faxcompr.c +++ b/libavcodec/faxcompr.c @@ -227,7 +227,7 @@ static int decode_group3_1d_line(AVCodecContext *avctx, GetBitContext *gb, run = 0; mode = !mode; } else if ((int)t == -1) { - if (show_bits(gb, 12) == 15) { + if (get_bits_left(gb) > 12 && show_bits(gb, 12) == 15) { int ret; skip_bits(gb, 12); ret = decode_uncompressed(avctx, gb, &pix_left, &runs, runend, &mode); _______________________________________________ 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".
