In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb (crycb 0 or 1), the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested guest potential access to a device no longer available. Zero out the remaining bits.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 2
- StatusReceived → PublishedNVD modified 2026-10-19 08:45
- First seenCVSS 8.8NVD modified 2026-10-19 09:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 9
- https://git.kernel.org/stable/c/087c19cc60a8caa1a08e1e434c8be2caf6c27733
- https://git.kernel.org/stable/c/29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6
- https://git.kernel.org/stable/c/34d5b5b646c91cfb9338d7a12c955a70ffb8c66b
- https://git.kernel.org/stable/c/59d51550b5cb916bda037673a721a404b3b47a0d
- https://git.kernel.org/stable/c/7d23489f51109e3ebba5b5db8c5f0185af7b7fdf
- https://git.kernel.org/stable/c/935eeba276012916c76243e5cbb843efd8fdb75d
- https://git.kernel.org/stable/c/d110b3297f11ef227098b8a82ade2d5f123b7d2f
- https://git.kernel.org/stable/c/d4bcd2df6d0d2af916b4fe1a533958778ea7c45b
- https://git.kernel.org/stable/c/f6079dca67eccb5eabef9f72437948c66dc5131f