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lavfi/lut3d: add sanity checks.

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Should fix CID1026775 and CID1026774.
This commit is contained in:
Clément Bœsch 2013-06-07 01:42:18 +02:00
parent d5978c8678
commit f97e28ebe5
1 changed files with 8 additions and 2 deletions
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10
libavfilter/vf_lut3d.c
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@ -265,8 +265,8 @@ static int parse_cube(AVFilterContext *ctx, FILE *f)
int i, j, k;
const int size = strtol(line + 12, NULL, 0);
if (size > MAX_LEVEL) {
av_log(ctx, AV_LOG_ERROR, "Too large 3D LUT\n");
if (size < 2 || size > MAX_LEVEL) {
av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n");
return AVERROR(EINVAL);
}
lut3d->lutsize = size;
@ -370,6 +370,12 @@ static int parse_m3d(AVFilterContext *ctx, FILE *f)
av_log(ctx, AV_LOG_ERROR, "in and out must be defined\n");
return AVERROR_INVALIDDATA;
}
if (in < 2 || out < 2 ||
in > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL ||
out > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL) {
av_log(ctx, AV_LOG_ERROR, "invalid in (%d) or out (%d)\n", in, out);
return AVERROR_INVALIDDATA;
}
for (size = 1; size*size*size < in; size++);
lut3d->lutsize = size;
scale = 1. / (out - 1);