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This series of patches fixes deficiencies in GCC's -fstack-protector implementation for AArch64 when using dynamically allocated stack space. This is CVE-2023-4039. See: https://developer.arm.com/Arm%20Security%20Center/GCC%20Stack%20Protector%20Vulnerability%20AArch64 https://github.com/metaredteam/external-disclosures/security/advisories/GHSA-x7ch-h5rf-w2mf for more details. (From OE-Core rev: d411ef9f660c443c00eee9bfbbc8c60c3cd0e92d) Signed-off-by: Ross Burton <ross.burton@arm.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>