From 9fbcecf43544a90b71719b9360065e9d66f99334 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 19 Oct 2024 00:08:03 +0200 Subject: [PATCH] swscale/slice: clear allocated memory in alloc_lines() 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 (cherry picked from commit aeec39f3c1be82863efe64ce95242de58e075e8f) Signed-off-by: Michael Niedermayer --- libswscale/slice.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libswscale/slice.c b/libswscale/slice.c index f9c413cebd..925ce55f30 100644 --- a/libswscale/slice.c +++ b/libswscale/slice.c @@ -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);