CVE-2023-53713

CVE-2023-53713 affects the Linux kernel on arm64 with SME in streaming SVE mode. The vulnerability arises from clearing the FFR context field using an unconditional 8-byte store, which may fail to clear the entire field or corrupt memory if the SME vector length is not 64 bytes. The fix replaces ...

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...