KVM: nSVM: Avoid clearing VMCB_LBR in vmcb12

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• linux linux kernel5.19 and later · before 6.18.27
• linux linux kernel6.19 and later · before 7.0.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

• Linux Linux

  • 5.19affected
  • d20c796ca3709801f8a7fa36e8770a3dd8ebd34e and later · before 165b08d2d1346dce5ed43db65e10f3194b9ae2feaffected · git
  • d20c796ca3709801f8a7fa36e8770a3dd8ebd34e and later · before 11d347b7edf5093d69aca72317300798a32bfd6baffected · git
  • d20c796ca3709801f8a7fa36e8770a3dd8ebd34e and later · before a3f0981a5a0e0bd51ad74cc7d9eed32294b24002affected · git
  • d20c796ca3709801f8a7fa36e8770a3dd8ebd34e and later · before 9efe23568806d1cd06f7d146f9b3037b8d585a9faffected · git
  • d20c796ca3709801f8a7fa36e8770a3dd8ebd34e and later · before b53ab5167a81537777ac780bbd93d32613aa3bdaaffected · git
  • before 5.19not affected · semver
  • 6.6.160 and later · up to and including 6.6.*not affected · semver
  • 6.12.114 and later · up to and including 6.12.*not affected · semver
  • 6.18.27 and later · up to and including 6.18.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
  89Now
• CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
  85Now
• CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
  83Now

Published before and after this one in the same product

• ← EarlierCVE-2026-46069May 27, 2026 · wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()
  31Monitor
• ← EarlierCVE-2026-46070May 27, 2026 · md/raid5: validate payload size before accessing journal metadata
  28Monitor
• Later →CVE-2026-46076May 27, 2026 · KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
  31Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.