diff options
Diffstat (limited to 'thirdparty/libwebp/src/utils/utils.c')
| -rw-r--r-- | thirdparty/libwebp/src/utils/utils.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/thirdparty/libwebp/src/utils/utils.c b/thirdparty/libwebp/src/utils/utils.c index 764f752b82..9e464c16ce 100644 --- a/thirdparty/libwebp/src/utils/utils.c +++ b/thirdparty/libwebp/src/utils/utils.c @@ -101,6 +101,9 @@ static void Increment(int* const v) { #if defined(MALLOC_LIMIT) { const char* const malloc_limit_str = getenv("MALLOC_LIMIT"); +#if MALLOC_LIMIT > 1 + mem_limit = (size_t)MALLOC_LIMIT; +#endif if (malloc_limit_str != NULL) { mem_limit = atoi(malloc_limit_str); } @@ -169,16 +172,16 @@ static int CheckSizeArgumentsOverflow(uint64_t nmemb, size_t size) { const uint64_t total_size = nmemb * size; if (nmemb == 0) return 1; if ((uint64_t)size > WEBP_MAX_ALLOCABLE_MEMORY / nmemb) return 0; - if (total_size != (size_t)total_size) return 0; + if (!CheckSizeOverflow(total_size)) return 0; #if defined(PRINT_MEM_INFO) && defined(MALLOC_FAIL_AT) if (countdown_to_fail > 0 && --countdown_to_fail == 0) { return 0; // fake fail! } #endif -#if defined(MALLOC_LIMIT) +#if defined(PRINT_MEM_INFO) && defined(MALLOC_LIMIT) if (mem_limit > 0) { const uint64_t new_total_mem = (uint64_t)total_mem + total_size; - if (new_total_mem != (size_t)new_total_mem || + if (!CheckSizeOverflow(new_total_mem) || new_total_mem > mem_limit) { return 0; // fake fail! } @@ -231,7 +234,7 @@ void WebPFree(void* ptr) { void WebPCopyPlane(const uint8_t* src, int src_stride, uint8_t* dst, int dst_stride, int width, int height) { assert(src != NULL && dst != NULL); - assert(src_stride >= width && dst_stride >= width); + assert(abs(src_stride) >= width && abs(dst_stride) >= width); while (height-- > 0) { memcpy(dst, src, width); src += src_stride; |