CVE-2023-53713

CVE-2023-53713: In the Linux kernel arm64 SME, the FFR context field was cleared with an unconditional 8-byte store, which could fail to clear or corrupt memory when SME vector length is not 64 bytes. The patch replaces this 8-byte store with a store of a zero-initialized PFALSE predicate registe...

kernel: arm64: sme: Use STR P to clear FFR context field in streaming SVE mode

In the Linux kernel, the following vulnerability has been resolved: arm64: sme: Use STR P to clear FFR context field in streaming SVE mode The FFR is a predicate register which can vary between 16 and 256 bits in size depending upon the configured vector length. When saving the SVE state in...