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swscale/slice: clear allocated memory in alloc_lines()

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Fixes: use of uninitialized memory in hScale16To15_c()
Fixes: 373924007/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-5841199968092160

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer 2024-10-19 00:08:03 +02:00
parent b2da4c33e3
commit aeec39f3c1
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1 changed files with 1 additions and 1 deletions
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libswscale/slice.c
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@ -60,7 +60,7 @@ static int alloc_lines(SwsSlice *s, int size, int width)
for (j = 0; j < n; ++j) { for (j = 0; j < n; ++j) {
// chroma plane line U and V are expected to be contiguous in memory // chroma plane line U and V are expected to be contiguous in memory
// by mmx vertical scaler code // by mmx vertical scaler code
s->plane[i].line[j] = av_malloc(size * 2 + 32); s->plane[i].line[j] = av_mallocz(size * 2 + 32);
if (!s->plane[i].line[j]) { if (!s->plane[i].line[j]) {
free_lines(s); free_lines(s);
return AVERROR(ENOMEM); return AVERROR(ENOMEM);