Description: x86/fpu: Stop relying on userspace for info to fault in xsave buffer
References:
Notes:
 carnil> Introduced in fcb3635f5018 ("x86/fpu/signal: Handle #PF in the direct restore
 carnil> path"). Vulnerable versions: 5.14-rc1.
Bugs:
upstream: released (6.8-rc4) [d877550eaf2dc9090d782864c96939397a3c6835]
6.7-upstream-stable: released (6.7.6) [627e28cbb65564e55008315d9e02fbb90478beda]
6.6-upstream-stable: released (6.6.18) [b2479ab426cef7ab79a13005650eff956223ced2]
6.1-upstream-stable: released (6.1.79) [627339cccdc9166792ecf96bc3c9f711a60ce996]
5.10-upstream-stable: N/A "Vulnerable code not present"
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.7.7-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: N/A "Vulnerable code not present"
4.19-buster-security: N/A "Vulnerable code not present"