Commit 0b2d39aa authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Borislav Petkov
Browse files

x86/fpu/xstate: Use fpstate for xsave_to_user_sigframe() 



With dynamically enabled features the sigframe code must know the features
which are enabled for the task. Get them from fpstate.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211013145323.077781448@linutronix.de
parent 073e627a

arch/x86/kernel/fpu/xstate.h

+1 −1
Original line number Diff line number Diff line
@@ -149,7 +149,7 @@ static inline int xsave_to_user_sigframe(struct xregs_state __user *buf) 
	 * internally, e.g. PKRU. That's user space ABI and also required

	 * to allow the signal handler to modify PKRU.

	 */

	u64 mask = xfeatures_mask_uabi();

	u64 mask = current->thread.fpu.fpstate->user_xfeatures;

	u32 lmask = mask;

	u32 hmask = mask >> 32;

	int err;