CVE-2026-64046 net: tls: prevent chain-after-chain in plain text SG

🗓️ 19 Jul 2026 15:39:31Reported by LinuxType

Linux kernel TLS fix to skip wrap when end is zero to prevent chain-after-chain input.

Reporter	Title	Published	Views	Family All 9
CVE	CVE-2026-64046	19 Jul 202615:39	–	cve
EUVD	EUVD-2026-45619	19 Jul 202615:39	–	euvd
NVD	CVE-2026-64046	19 Jul 202616:17	–	nvd
OSV	CVE-2026-64046 net: tls: prevent chain-after-chain in plain text SG	19 Jul 202615:39	–	osv
OSV	DEBIAN-CVE-2026-64046	19 Jul 202616:17	–	osv
OSV	UBUNTU-CVE-2026-64046	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61363	19 Jul 202600:00	–	ptsecurity
RedhatCVE	CVE-2026-64046	20 Jul 202617:12	–	redhatcve
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-64046	20 Jul 202600:00	–	nessus

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "49a5faaa471ddcd37b6893970c9916eb836e7c31",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "91359966e247c0244c66d50bbb8e74aefa4321c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "410351158dfef2d67fea6603680b3a6013c6ed9d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "acdc12b71c9aa4be5dcd2c8062753c6d2033e235",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "929b1548e63ac72e104c07d8ee8cbbeeba2fa89a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "af855f4c966afafef74faf8390c7b86568c0d46d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "b9c015ef1a7bf1e8dc67f21c6381f36deb2c3a36",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9aaaa56845a06aeabdd597cbe19492dc01f281ec",
        "lessThan": "ff26a0e8377dec07e4a7230db7675bed1b9a6d03",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d529d6c9f7e3aaeac13c4948f79799ccb825f29d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.4.14",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/tls/tls_sw.c"
    ],
    "versions": [
      {
        "version": "5.5",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.5",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.142",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.92",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.34",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.11",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/ff26a0e8377dec07e4a7230db7675bed1b9a6d03
git	www.git.kernel.org/stable/c/49a5faaa471ddcd37b6893970c9916eb836e7c31
git	www.git.kernel.org/stable/c/acdc12b71c9aa4be5dcd2c8062753c6d2033e235
git	www.git.kernel.org/stable/c/410351158dfef2d67fea6603680b3a6013c6ed9d
git	www.git.kernel.org/stable/c/929b1548e63ac72e104c07d8ee8cbbeeba2fa89a
git	www.git.kernel.org/stable/c/af855f4c966afafef74faf8390c7b86568c0d46d
git	www.git.kernel.org/stable/c/91359966e247c0244c66d50bbb8e74aefa4321c3
git	www.git.kernel.org/stable/c/b9c015ef1a7bf1e8dc67f21c6381f36deb2c3a36

20 Jul 2026 13:42Current

CVSS 3.19.8

EPSS0.00176