mirror of https://github.com/acidanthera/audk.git
cf8197a39d
There is one long-standing problem in CRT realloc wrapper, which will
cause the obvious buffer overflow issue when re-allocating one bigger
memory block:
void *realloc (void *ptr, size_t size)
{
//
// BUG: hardcode OldSize == size! We have no any knowledge about
// memory size of original pointer ptr.
//
return ReallocatePool ((UINTN) size, (UINTN) size, ptr);
}
This patch introduces one extra header to record the memory buffer size
information when allocating memory block from malloc routine, and re-wrap
the realloc() and free() routines to remove this BUG.
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ting Ye <ting.ye@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qin Long <qin.long@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Validated-by: Jian J Wang <jian.j.wang@intel.com>
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| .. | ||
| Application/Cryptest | ||
| CryptRuntimeDxe | ||
| Include | ||
| Library | ||
| .gitignore | ||
| CryptoPkg.dec | ||
| CryptoPkg.dsc | ||
| CryptoPkg.uni | ||
| CryptoPkgExtra.uni | ||