CVE-2026-80921
- Source
- https://cve.org/CVERecord?id=CVE-2026-80921
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80921.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80921
- Downstream
- Published
- 2026-09-09T16:19:42Z
- Modified
- 2026-09-11T03:49:00Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- KVM: s390: vsie: zero stale crypto bits
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80921.json" }- References
-
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80921.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80921
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6b79de4b056e5a2febc0c61233d8f0ad7868e49cFixedd110b3297f11ef227098b8a82ade2d5f123b7d2fFixed59d51550b5cb916bda037673a721a404b3b47a0dFixedf6079dca67eccb5eabef9f72437948c66dc5131fFixed087c19cc60a8caa1a08e1e434c8be2caf6c27733Fixed7d23489f51109e3ebba5b5db8c5f0185af7b7fdfFixed935eeba276012916c76243e5cbb843efd8fdb75dFixedd4bcd2df6d0d2af916b4fe1a533958778ea7c45bFixed29b4f7bc2991313bd3e6f6fb8fdf1b173f086dd6Fixed34d5b5b646c91cfb9338d7a12c955a70ffb8c66b
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced4.20.0Fixed5.10.269
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.220
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.187
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.156
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.108
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.49
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed7.1.13
- Type
- ECOSYSTEM
- Events
-
Introduced7.2.0Fixed7.2.3