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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>
(cherry picked from commit aeec39f3c1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-10-19 00:08:03 +02:00
parent d8778cbccd
commit 9fbcecf435
1 changed files with 1 additions and 1 deletions
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libswscale/slice.c
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@@ -59,7 +59,7 @@ static int alloc_lines(SwsSlice *s, int size, int width)
for (j = 0; j < n; ++j) {
// chroma plane line U and V are expected to be contiguous in memory
// 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]) {
free_lines(s);
return AVERROR(ENOMEM);