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ext/gd: imagefilter* using overflow checks. (#18283)

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Accept up to UINT_MAX * sizeof(int) colors.
This commit is contained in:
David CARLIER
2025-04-19 16:27:14 +01:00
committed by GitHub
parent 25f4f7982c
commit 2e7df9e423
1 changed files with 1 additions and 1 deletions
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ext/gd/gd.c
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@@ -3599,7 +3599,7 @@ static void php_image_filter_scatter(INTERNAL_FUNCTION_PARAMETERS)
RETURN_BOOL(gdImageScatter(im, (int)scatter_sub, (int)scatter_plus)); RETURN_BOOL(gdImageScatter(im, (int)scatter_sub, (int)scatter_plus));
} }
colors = emalloc(num_colors * sizeof(int)); colors = safe_emalloc(num_colors, sizeof(int), 0);
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(hash_colors), color) { ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(hash_colors), color) {
*(colors + i++) = (int) zval_get_long(color); *(colors + i++) = (int) zval_get_long(color);