virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-10 06:10:52 +02:00
Code Issues Releases Activity

avcodec/faxcompr: Check remaining bits on error in decode_group3_1d_line()

Browse Source 
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 <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2021-04-15 20:08:22 +02:00
parent 09be23ccf8
commit 7b3881f0da
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/faxcompr.c
View File

@@ -227,7 +227,7 @@ static int decode_group3_1d_line(AVCodecContext *avctx, GetBitContext *gb,
run = 0; run = 0;
mode = !mode; mode = !mode;
} else if ((int)t == -1) { } else if ((int)t == -1) {
if (show_bits(gb, 12) == 15) { if (get_bits_left(gb) > 12 && show_bits(gb, 12) == 15) {
int ret; int ret;
skip_bits(gb, 12); skip_bits(gb, 12);
ret = decode_uncompressed(avctx, gb, &pix_left, &runs, runend, &mode); ret = decode_uncompressed(avctx, gb, &pix_left, &runs, runend, &mode);