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CVE-2026-64283 KVM: guest_memfd: Treat memslot binding offset+size as unsigned values

🗓️ 25 Jul 2026 08:49:25Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 33 Views

CVE-2026-64283 fixes guest_memfd by treating memslot offset and size as unsigned to prevent overflow when binding.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-64283
25 Jul 202608:49
cve
debiancve
Debian CVE
CVE-2026-64283
25 Jul 202608:49
debiancve
euvd
EUVD
EUVD-2026-48995
25 Jul 202608:49
euvd
nvd
NVD
CVE-2026-64283
25 Jul 202610:17
nvd
opensuse
OPENSUSE Linux
kernel-devel-7.1.7-1.1 on GA media (moderate)
10 Aug 202600:00
opensuse
osv
OSV
BELL-CVE-2026-64283
29 Jul 202606:05
osv
osv
OSV
DEBIAN-CVE-2026-64283
25 Jul 202610:17
osv
osv
OSV
OPENSUSE-SU-2026:11476-1 kernel-devel-7.1.7-1.1 on GA media
9 Aug 202600:00
osv
osv
OSV
ROOT-OS-UBUNTU-2204-CVE-2026-64283 CVE-2026-64283 in linux - Patched by Root
12 Aug 202621:55
osv
osv
OSV
UBUNTU-CVE-2026-64283
25 Jul 202610:17
osv
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "virt/kvm/guest_memfd.c",
      "virt/kvm/kvm_mm.h"
    ],
    "versions": [
      {
        "version": "a7800aa80ea4d5356b8474c2302812e9d4926fa6",
        "lessThan": "f3a98d5881b9bd4807f49156143565f6aabcef1e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a7800aa80ea4d5356b8474c2302812e9d4926fa6",
        "lessThan": "eba85fee7fc6cf28fec38a5bf3c378bef9a79ca6",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "virt/kvm/guest_memfd.c",
      "virt/kvm/kvm_mm.h"
    ],
    "versions": [
      {
        "version": "6.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.4",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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