Traneptora/FFmpeg
1
Fork 0
forked from FFmpeg/FFmpeg
Code Pull requests Activity

avformat/wtvdec: Initialize buf

Browse source 
ff_parse_mpeg2_descriptor() reads over what is initialized
Fixes: use of uninitialized memory
Fixes: 383825645/clusterfuzz-testcase-minimized-ffmpeg_dem_WTV_fuzzer-5144130618982400

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 2024-12-26 02:53:45 +01:00
parent e81d410242
commit 17b019c517
No known key found for this signature in database
GPG key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
libavformat/wtvdec.c
View file

@ -833,7 +833,7 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
int stream_index = ff_find_stream_index(s, sid);
if (stream_index >= 0) {
AVStream *st = s->streams[stream_index];
uint8_t buf[258];
uint8_t buf[258] = {0};
const uint8_t *pbuf = buf;
int buf_size;