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- prevent unprivileged userspace from reinitializing supervisor states - Prepare init_fpstate, which is the buffer used when initializing FPU state, properly in case the skip-writing-state-components XSAVE* variants are used. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmDVltYACgkQEsHwGGHe VUqY9Q//c4MhJP2E15cqTWupxYk41k0UMjqPIwGmt6hRoDNKeFQm0xSgeOwe2mgk bbzGDJOfAi2Hxza2fw6No4wIiaB3sZIqK451aI1SM9HTDB/B/dMGBPXAp9qRlnbT kU/rDqQVqi7wlwunSunFoSLTwmQw0Lispmzwz9yirdQ+jVsnuTLWtPbUZM8RL/j8 XAhVwhDNc+Wuw0OBvRsyP5Mp6k9+2ic6z2ObIgSfgp4GeDG2F/+ZQ5W5ZeHVGQda 5QqKIdWCmAinzdz3N0iksthT3RJwLmYZ0K/qvLMrYNCvZiuUBdgrUn1Yrjo1c3lx W+SUMtgehlylfyBbyGn5zBbJtZJtflx+kYLHLzw58lWC+ekRfxqx2F+e7S4facXr Xn9IpnIAhru1/SAItSvScxXzjVW4DwZKO3tLr+/KsrRsTnS15pD6rx6OK88HHP/y ofjCeS0P8STb7/Gzzqj7c+7bJvSZo/h7jmF+H2y5tRhUXZogSoh1z/QGYpvcFrwP GOZeACREBv+D1PQNp/DN/ZiZHg6+csEg+3abtRaZSbdnfsCSpU/imXcX9GPco5vu XS+Gxle2aqvRmQNuJEbNr7YDfocZWWXmXnkPSKCtvqSgNdxjFjZ2v3TRTAgvHEoS Otpsv5Hk9g0FCep4oHG3zv8cb+Nk7Ycl2ZLZXQwE2Egane6U4K8= =uqQE -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: "Two more urgent FPU fixes: - prevent unprivileged userspace from reinitializing supervisor states - prepare init_fpstate, which is the buffer used when initializing FPU state, properly in case the skip-writing-state-components XSAVE* variants are used" * tag 'x86_urgent_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu: Make init_fpstate correct with optimized XSAVE x86/fpu: Preserve supervisor states in sanitize_restored_user_xstate() |
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uapi/asm |