CVE-2026-80921
CVE CVE-2026-80921EUVD EUVD-2026-75098Published 2026-09-09T16:19:42.000ZLast changed 2026-09-10T05:50:22.000ZCVSS 8.8
What the advisory describes
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.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.2.3; patch: 6.12.108; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <7d23489f51109e3ebba5b5db8c5f0185af7b7fdf; 4.20; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <34d5b5b646c91cfb9338d7a12c955a70ffb8c66b; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <d110b3297f11ef227098b8a82ade2d5f123b7d2f; patch: 7.1.13; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <f6079dca67eccb5eabef9f72437948c66dc5131f; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <935eeba276012916c76243e5cbb843efd8fdb75d; patch: 7.3-rc1; patch: 6.6.156; patch: 5.10.269; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <087c19cc60a8caa1a08e1e434c8be2caf6c27733; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <59d51550b5cb916bda037673a721a404b3b47a0d; patch: 6.1.187; patch: 0; 6b79de4b056e5a2febc0c61233d8f0ad7868e49c <d4bcd2df6d0d2af916b4fe1a533958778ea7c45b; patch: 6.18.49; patch: 5.15.220
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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