CVE-2026-64324

🗓️ 25 Jul 2026 08:49:52Reported by LinuxType

CVE-2026-64324 fixes UDF free block extent validation to prevent kernel panic from ftruncate.

Reporter	Title	Published	Views	Family All 10
Circl	CVE-2026-64324	25 Jul 202611:09	–	circl
Cvelist	CVE-2026-64324 udf: validate free block extents against the partition length	25 Jul 202608:49	–	cvelist
Debian CVE	CVE-2026-64324	25 Jul 202608:49	–	debiancve
EUVD	EUVD-2026-48868	25 Jul 202608:49	–	euvd
NVD	CVE-2026-64324	25 Jul 202610:17	–	nvd
OSV	DEBIAN-CVE-2026-64324	25 Jul 202616:48	–	osv
OSV	ECHO-9301-EF9F-E6DD	26 Jul 202602:26	–	osv
Positive Technologies	PT-2026-64545	25 Jul 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-64324	25 Jul 202616:45	–	susecve
Tenable Nessus	Linux Distros Unpatched Vulnerability : CVE-2026-64324	25 Jul 202600:00	–	nessus

Vulners

CNA

Node

linux linux_kernelRange5.10.224–5.10.261

linux linux_kernelRange5.15.165–5.15.212

linux linux_kernelRange6.1.105–6.1.178

linux linux_kernelRange6.6.46–6.6.145

linux linux_kernelRange4.19.320–4.20

linux linux_kernelRange5.4.282–5.5

linux linux_kernelRange6.10.5–6.11

linux linux_kernelRange6.11–5.10.261

linux linux_kernelRange5.11.0–5.15.212

linux linux_kernelRange5.16.0–6.1.178

linux linux_kernelRange6.2.0–6.6.145

linux linux_kernelRange6.7.0–6.12.96

linux linux_kernelRange6.13.0–6.18.39

linux linux_kernelRange6.19.0–7.1.4

linux linux_kernelRange7.2.0–7.2-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/udf/balloc.c"
    ],
    "versions": [
      {
        "version": "934f815345c09c290a9b9a9cfdddc203ec2117e8",
        "lessThan": "fdd6229d2ae9914c1f25d1041db0f4f312a4fa76",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "22cc7323f090646c8cfb5939e6f15bdc2ed3fd27",
        "lessThan": "b54aee5652fcd7c23a0904a4623ec462c3edc70c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7c4fa9ebfce69619d132fe703dc2e2cf62a13723",
        "lessThan": "12af328d2ee8d68e81ba612246d0b54b22d23e1f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5cc9745e2ea11aef7d5c9a42bc36f6cd3e1b4cc3",
        "lessThan": "fb49099206c5c57af28a157249fa7bcb5518f99e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "56e69e59751d20993f243fb7dd6991c4e522424c",
        "lessThan": "9442d75429b0c556292a7454fe888d54259f5240",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "56e69e59751d20993f243fb7dd6991c4e522424c",
        "lessThan": "335202ab25b01fdd45889ff25eab70864686dea3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "56e69e59751d20993f243fb7dd6991c4e522424c",
        "lessThan": "be87de7789a82a030a4896bc7683415ec9fa6f2b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "56e69e59751d20993f243fb7dd6991c4e522424c",
        "lessThan": "5f0419457f89dce1a3f1c8e62a3adf2f39ab8168",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "097420e48e30f51e8f4f650b5c946f5af63ec1a3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5def895b42ef16a2da6402818cba8d7ec8ede1ef",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "05fb2bf477d3fe5421bd4cb699574737f52bd88b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5.10.224",
        "lessThan": "5.10.261",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.15.165",
        "lessThan": "5.15.212",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.1.105",
        "lessThan": "6.1.178",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.6.46",
        "lessThan": "6.6.145",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.19.320",
        "lessThan": "4.20",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "5.4.282",
        "lessThan": "5.5",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "6.10.5",
        "lessThan": "6.11",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/udf/balloc.c"
    ],
    "versions": [
      {
        "version": "6.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.11",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.261",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.212",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.178",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.145",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.96",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.39",
        "lessThanOrEqual": "6.18.*",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/fdd6229d2ae9914c1f25d1041db0f4f312a4fa76
git	www.git.kernel.org/stable/c/be87de7789a82a030a4896bc7683415ec9fa6f2b
git	www.git.kernel.org/stable/c/12af328d2ee8d68e81ba612246d0b54b22d23e1f
git	www.git.kernel.org/stable/c/9442d75429b0c556292a7454fe888d54259f5240
git	www.git.kernel.org/stable/c/fb49099206c5c57af28a157249fa7bcb5518f99e
git	www.git.kernel.org/stable/c/b54aee5652fcd7c23a0904a4623ec462c3edc70c
git	www.git.kernel.org/stable/c/335202ab25b01fdd45889ff25eab70864686dea3
git	www.git.kernel.org/stable/c/5f0419457f89dce1a3f1c8e62a3adf2f39ab8168

25 Jul 2026 10:17Current

5.8Medium risk

Vulners AI Score5.8

EPSS0.0021