Description: KVM: s390: vsie: fix race during shadow creation
References:
Notes:
 carnil> Introduced in a3508fbe9dc6 ("KVM: s390: vsie: initial support for nested
 carnil> virtualization"). Vulnerable versions: 4.8-rc1.
Bugs:
upstream: released (6.8-rc4) [fe752331d4b361d43cfd0b89534b4b2176057c32]
6.7-upstream-stable: released (6.7.6) [28bb27824f25f36e5f80229a358d66ee09244082]
6.6-upstream-stable: released (6.6.22) [f5572c0323cf8b4f1f0618178648a25b8fb8a380]
6.1-upstream-stable: released (6.1.82) [5df3b81a567eb565029563f26f374ae3803a1dfc]
5.10-upstream-stable: needed
4.19-upstream-stable: needed
sid: released (6.7.7-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: needed
4.19-buster-security: needed