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stb_image: Fix potential null deref in stbi_realloc()

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Mintsuki
2025-04-12 21:04:10 +02:00
parent 08ed65f63e
commit 9ee0e8d4e4
1 changed files with 1 additions and 1 deletions
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common/stb_image.patch
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@@ -35,8 +35,8 @@
+ void *STBI_REALLOC_buf = (x); \
+ size_t STBI_REALLOC_alloc_size = (y); \
+ void *STBI_REALLOC_new_buf = STBI_MALLOC(STBI_REALLOC_alloc_size); \
+ size_t STBI_REALLOC_old_size = (*(size_t *)((void *)STBI_REALLOC_buf - 16)) - 16; \
+ if (STBI_REALLOC_buf != NULL) { \
+ size_t STBI_REALLOC_old_size = (*(size_t *)((void *)STBI_REALLOC_buf - 16)) - 16; \
+ memcpy(STBI_REALLOC_new_buf, STBI_REALLOC_buf, \
+ MIN(STBI_REALLOC_alloc_size, STBI_REALLOC_old_size)); \
+ STBI_FREE(STBI_REALLOC_buf); \