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Line 1: − This is the header stored at the beginning of unused blocks of FCRAM memory. The kernel maintains these structures to keep a list of free blocks and their sizes.+ − − By overwriting the pointers in instances of this struct (e.g. using an attack like gspwn) and then (de)allocating memory, one can achieve a controlled ARM11 kernel-mode write on system versions up to 9.2 ([[3DS_System_Flaws#Kernel11|memchunkhax]]). − − − Size : 0xC bytes? − − {| class="wikitable" border="1" − |- − ! Offset − ! Type − ! Description − |- − | 0x0 − | u32 − | Size in pages − |- − | 0x4 − | KHeapHeader* − | Next − |- − | 0x8 − | KHeapHeader* − | Prev − |}
Redirected page to MemoryBlockHeader
#REDIRECT [[MemoryBlockHeader]]