Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame

From	Ben Hutchings <ben@decadent.org.uk>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame
Date	2025-06-15 22:10 +0200
Message-ID	<KY1PX-aO3s-9@gated-at.bofh.it> (permalink)
References	<KET6x-fLik-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi stable maintainers,

Please apply commit d1e420772cd1 ("x86/pkeys: Simplify PKRU update in
signal frame") to the stable branches for 6.12 and later.

This fixes a regression introduced in 6.13 by commit ae6012d72fa6
("x86/pkeys: Ensure updated PKRU value is XRSTOR'd"), which was also
backported in 6.12.5.

Ben.

-- 
Ben Hutchings
73.46% of all statistics are made up.

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Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame Ben Hutchings <ben@decadent.org.uk> - 2025-06-15 22:10 +0200
  Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame Greg KH <gregkh@linuxfoundation.org> - 2025-06-20 18:10 +0200
    Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame Greg KH <gregkh@linuxfoundation.org> - 2025-06-20 18:30 +0200
      Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame Ben Hutchings <ben@decadent.org.uk> - 2025-06-25 00:30 +0200
        Bug#1103397: [stable 6.12+] x86/pkeys: Simplify PKRU update in signal frame Greg KH <gregkh@linuxfoundation.org> - 2025-07-02 10:10 +0200

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