MdePkg/BaseLib: Fix invalid memory access in AArch64 SetJump/LongJump #1007
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Correct the memory offsets used in REG_ONE/REG_PAIR macros to synchronize them with definition of the BASE_LIBRARY_JUMP_BUFFER structure on AArch64. The REG_ONE macro declares only a single 64-bit register be read/written; however, the subsequent offset is 16 bytes larger, creating an unused memory gap in the middle of the structure and causing SetJump/LongJump functions to read/write 8 bytes of memory past the end of the jump buffer struct. Signed-off-by: Jan Bobek <jbobek@nvidia.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@arm.com> Acked-by: Michael D Kinney <michael.d.kinney@intel.com> Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
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Correct the memory offsets used in REG_ONE/REG_PAIR macros to
synchronize them with definition of the BASE_LIBRARY_JUMP_BUFFER
structure on AArch64.
The REG_ONE macro declares only a single 64-bit register be
read/written; however, the subsequent offset is 16 bytes larger,
creating an unused memory gap in the middle of the structure and
causing SetJump/LongJump functions to read/write 8 bytes of memory
past the end of the jump buffer struct.
Signed-off-by: Jan Bobek jbobek@nvidia.com
Reviewed-by: Ard Biesheuvel ard.biesheuvel@arm.com
Acked-by: Michael D Kinney michael.d.kinney@intel.com
Acked-by: Liming Gao gaoliming@byosoft.com.cn