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CVE-2026-64523 net/handshake: Take a long-lived file reference at submit

🗓️ 25 Jul 2026 09:20:47Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 37 Views

Linux kernel handshake holds a file reference during submit to keep the socket alive until completion.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-64523
25 Jul 202609:20
attackerkb
nessus
Tenable Nessus
Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1968)
20 Jul 202600:00
nessus
nessus
Tenable Nessus
Photon OS 5.0: Linux PHSA-2026-5.0-0895
26 Jun 202600:00
nessus
nessus
Tenable Nessus
Photon OS 5.0: Linux PHSA-2026-5.0-92-0895
10 Aug 202600:00
nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-64523
25 Jul 202600:00
nessus
circl
Circl
CVE-2026-64523
27 Jul 202606:26
circl
cve
CVE
CVE-2026-64523
25 Jul 202609:20
cve
debiancve
Debian CVE
CVE-2026-64523
25 Jul 202609:20
debiancve
euvd
EUVD
EUVD-2026-48867
25 Jul 202609:20
euvd
nvd
NVD
CVE-2026-64523
25 Jul 202610:17
nvd
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/handshake/handshake.h",
      "net/handshake/netlink.c",
      "net/handshake/request.c"
    ],
    "versions": [
      {
        "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
        "lessThan": "685b10dd0e32c7782cead16c8cf055c609678583",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
        "lessThan": "b913801ad9b9a51437d84d030ec6843e08976bd6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
        "lessThan": "16eaba5aa89c04eea125905bb8f988c1897f4f29",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
        "lessThan": "09dba37eee70d0596e26645015f1aa95a9848e9d",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/handshake/handshake.h",
      "net/handshake/netlink.c",
      "net/handshake/request.c"
    ],
    "versions": [
      {
        "version": "6.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.44",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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09 Aug 2026 18:34Current
CVSS 3.19.8
EPSS0.00359
37