virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-04 22:03:09 +02:00
Code Issues Releases Activity

avcodec/cfhd: Check idwt_buf size before allocation

Browse Source 
Fixes: OOM
Fixes: 428760799/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CFHD_DEC_fuzzer-5685176435015680

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
2025-07-15 22:19:24 +02:00
parent f7a6965308
commit 2d72bf6fe0
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavcodec/cfhd.c
View File

@ -25,6 +25,7 @@
#include "libavutil/attributes.h" #include "libavutil/attributes.h"
#include "libavutil/common.h" #include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h" #include "libavutil/intreadwrite.h"
#include "libavutil/mem.h" #include "libavutil/mem.h"
#include "libavutil/pixdesc.h" #include "libavutil/pixdesc.h"
@ -266,6 +267,9 @@ static int alloc_buffers(AVCodecContext *avctx)
int height = (i || bayer) ? s->coded_height >> chroma_y_shift : s->coded_height; int height = (i || bayer) ? s->coded_height >> chroma_y_shift : s->coded_height;
ptrdiff_t stride = (FFALIGN(width / 8, 8) + 64) * 8; ptrdiff_t stride = (FFALIGN(width / 8, 8) + 64) * 8;
if ((ret = av_image_check_size2(stride, height, avctx->max_pixels, s->coded_format, 0, avctx)) < 0)
return ret;
if (chroma_y_shift && !bayer) if (chroma_y_shift && !bayer)
height = FFALIGN(height / 8, 2) * 8; height = FFALIGN(height / 8, 2) * 8;
s->plane[i].width = width; s->plane[i].width = width;