if (SkGammas::Type::kNamed_Type == rType) {
*gammaNamed = rData.fNamed;
} else {
- size_t allocSize = sizeof(SkGammas) + gamma_alloc_size(rType, rData);
+ size_t allocSize = sizeof(SkGammas);
+ return_if_false(safe_add(allocSize, gamma_alloc_size(rType, rData), &allocSize),
+ "SkGammas struct is too large to allocate");
void* memory = sk_malloc_throw(allocSize);
*gammas = sk_sp<SkGammas>(new (memory) SkGammas());
load_gammas(memory, 0, rType, &rData, rParams, rTagPtr);
tagLen);
handle_invalid_gamma(&bType, &bData);
- size_t allocSize = sizeof(SkGammas) + gamma_alloc_size(rType, rData)
- + gamma_alloc_size(gType, gData)
- + gamma_alloc_size(bType, bData);
+ size_t allocSize = sizeof(SkGammas);
+ return_if_false(safe_add(allocSize, gamma_alloc_size(rType, rData), &allocSize),
+ "SkGammas struct is too large to allocate");
+ return_if_false(safe_add(allocSize, gamma_alloc_size(gType, gData), &allocSize),
+ "SkGammas struct is too large to allocate");
+ return_if_false(safe_add(allocSize, gamma_alloc_size(bType, bData), &allocSize),
+ "SkGammas struct is too large to allocate");
void* memory = sk_malloc_throw(allocSize);
*gammas = sk_sp<SkGammas>(new (memory) SkGammas());
if (SkGammas::Type::kNamed_Type == type) {
gammaNamed = data.fNamed;
} else {
- size_t allocSize = sizeof(SkGammas) + gamma_alloc_size(type, data);
+ size_t allocSize = sizeof(SkGammas);
+ if (!safe_add(allocSize, gamma_alloc_size(type, data), &allocSize)) {
+ return_null("SkGammas struct is too large to allocate");
+ }
void* memory = sk_malloc_throw(allocSize);
gammas = sk_sp<SkGammas>(new (memory) SkGammas());
load_gammas(memory, 0, type, &data, params, r->addr(base));
parse_gamma(&bData, &bParams, &tagBytes, b->addr(base), b->fLength);
handle_invalid_gamma(&bType, &bData);
- size_t allocSize = sizeof(SkGammas) + gamma_alloc_size(rType, rData)
- + gamma_alloc_size(gType, gData)
- + gamma_alloc_size(bType, bData);
+ size_t allocSize = sizeof(SkGammas);
+ if (!safe_add(allocSize, gamma_alloc_size(rType, rData), &allocSize) ||
+ !safe_add(allocSize, gamma_alloc_size(gType, gData), &allocSize) ||
+ !safe_add(allocSize, gamma_alloc_size(bType, bData), &allocSize))
+ {
+ return_null("SkGammas struct is too large to allocate");
+ }
void* memory = sk_malloc_throw(allocSize);
gammas = sk_sp<SkGammas>(new (memory) SkGammas());