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Fix possible memory corruption in string handling

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Frederik Seiffert 2021-07-16 13:43:07 +02:00 • committed by Frederik Seiffert
parent 49ba7d1ed1
commit a377a86094
3 changed files with 16 additions and 8 deletions
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8
Source/GSICUString.h
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@ -80,13 +80,13 @@ static inline void free_string(unichar **buf)
*
* Buffers created in this way are exception safe when using native exceptions.
*/
#define TEMP_BUFFER(name, size)\
#define TEMP_BUFFER(name, length)\
__attribute__((cleanup(free_string))) unichar *name ##_onheap = 0;\
unichar name ## _onstack[64 / sizeof(unichar)];\
unichar name ## _onstack[64];\
unichar *name = name ## _onstack;\
if (size > 64)\
if (length > 64)\
{\
name ## _onheap = malloc(size);\
name ## _onheap = malloc(length * sizeof(unichar));\
name = name ## _onheap;\
}