Linux kernel bug fix: x86/fpu: Allow PKRU to be (once again) written by ptrace.
Subsystem: arch/x86 (arch/x86/kernel/fpu/xstate.c)
Bug type: unknown, severity: critical
Files changed: arch/x86/kernel/fpu/core.c;arch/x86/kernel/fpu/xstate.c
Introduced by Dave Hansen on 2021-06-23 19:44:24 +0200; fixed by Kyle Huey on 2022-11-16 15:03:53 -0800 (lifetime: 510 days)