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CVE-2026-45927 bpf: Require frozen map for calculating map hash

🗓️ 27 May 2026 12:17:46Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 41 Views

Prevent TOCTOU: return -EPERM if map not frozen when hash is requested; hash only for final immutable map.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus
Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1514)
30 Mar 202600:00
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-45927
29 May 202600:00
nessus
CNNVD
Linux kernel 安全漏洞
27 May 202600:00
cnnvd
CVE
CVE-2026-45927
27 May 202612:17
cve
Debian CVE
CVE-2026-45927
27 May 202612:17
debiancve
EUVD
EUVD-2026-32393
27 May 202615:33
euvd
NVD
CVE-2026-45927
27 May 202614:17
nvd
OSV
BELL-CVE-2026-45927
28 May 202606:10
osv
OSV
DEBIAN-CVE-2026-45927
27 May 202614:17
osv
OSV
UBUNTU-CVE-2026-45927
27 May 202614:17
osv
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/syscall.c"
    ],
    "versions": [
      {
        "version": "ea2e6467ac36bf3d785defc89e58269b15d182f7",
        "lessThan": "7752d36343862323bbeea4ce3adf0ec2ed86e122",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea2e6467ac36bf3d785defc89e58269b15d182f7",
        "lessThan": "f415e114b58fe02c41191e47f24bdabb438daf72",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "ea2e6467ac36bf3d785defc89e58269b15d182f7",
        "lessThan": "a2c86aa621c22f2a7e26c654f936d65cfff0aa91",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/bpf/syscall.c"
    ],
    "versions": [
      {
        "version": "6.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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