Kees Cook f7d83c1cf3 x86: Implement thread_struct whitelist for hardened usercopy ... This whitelists the FPU register state portion of the thread_struct for copying to userspace, instead of the default entire struct. This is needed because FPU register state is dynamically sized, so it doesn't bypass the hardened usercopy checks. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Cc: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: Mathias Krause <minipli@googlemail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Rik van Riel <riel@redhat.com>		2018-01-15 12:08:05 -08:00
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asm	x86: Implement thread_struct whitelist for hardened usercopy	2018-01-15 12:08:05 -08:00
uapi/asm	x86/cpufeature: Add User-Mode Instruction Prevention definitions	2017-11-08 11:16:21 +01:00