Fixes: out of array access Fixes: 49271/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5424984922652672
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/hevc_filter.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/libavcodec/hevc_filter.c b/libavcodec/hevc_filter.c index 7b53c66c3b..1ae561db9e 100644 --- a/libavcodec/hevc_filter.c +++ b/libavcodec/hevc_filter.c @@ -143,11 +143,22 @@ static void copy_CTB(uint8_t *dst, const uint8_t *src, int width, int height, if (((intptr_t)dst | (intptr_t)src | stride_dst | stride_src) & 15) { for (i = 0; i < height; i++) { - for (j = 0; j < width; j+=8) + for (j = 0; j < width - 7; j+=8) AV_COPY64U(dst+j, src+j); dst += stride_dst; src += stride_src; } + if (width&7) { + dst += ((width>>3)<<3) - stride_dst * height; + src += ((width>>3)<<3) - stride_src * height; + width &= 7; + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) + dst[j] = src[j]; + dst += stride_dst; + src += stride_src; + } + } } else { for (i = 0; i < height; i++) { for (j = 0; j < width; j+=16) -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
