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PAC pointer authentication signs the return address against the value of the stack pointer, to prevent stack overrun exploits from corrupting the control flow. However, this requires that the AUTIASP is issued with SP holding the same value as it held when the PAC value was generated. The Poly1305 armv8 code got this wrong, resulting in crashes on PAC capable hardware. Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> (Merged from https://github.com/openssl/openssl/pull/13256) |
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| asm | ||
| build.info | ||
| poly1305_base2_44.c | ||
| poly1305_ieee754.c | ||
| poly1305.c | ||