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| author | Přemysl Janouch <p.janouch@gmail.com> | 2015-02-14 08:54:42 +0100 |
|---|---|---|
| committer | Přemysl Janouch <p.janouch@gmail.com> | 2015-02-14 08:54:42 +0100 |
| commit | 386126ffdb0c35c6db5d53dfb9e1c71a96ba3727 (patch) | |
| tree | 83de71003244e02ed3fec9517ce53de2d6df2a72 | |
| parent | 4793e93d6954f1de2473d216a5c40c78f5f67022 (diff) | |
| download | neetdraw-386126ffdb0c35c6db5d53dfb9e1c71a96ba3727.tar.gz neetdraw-386126ffdb0c35c6db5d53dfb9e1c71a96ba3727.tar.xz neetdraw-386126ffdb0c35c6db5d53dfb9e1c71a96ba3727.zip | |
Prevent integer overflow
| -rw-r--r-- | autistdraw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/autistdraw.c b/autistdraw.c index 2899251..45f63a5 100644 --- a/autistdraw.c +++ b/autistdraw.c @@ -828,7 +828,10 @@ load (app_context_t *app) if (fscanf (fp, "%d %d %zu %zu", &x, &y, &w, &h) != 4) goto error; + if (w && h > SIZE_MAX / w) + goto error; size_t size = w * h; + uint8_t *bitmap = calloc (size, sizeof *bitmap); if (!bitmap) goto error; |