CVE-2026-64294

🗓️ 25 Jul 2026 08:49:32Reported by LinuxType

Linux kernel fix for inode ownership checks on idmapped mounts using file owner capable for mincore and madvise.

Reporter	Title	Published	Views	Family All 5
Cvelist	CVE-2026-64294 mm: do file ownership checks with the proper mount idmap	25 Jul 202608:49	–	cvelist
Debian CVE	CVE-2026-64294	25 Jul 202608:49	–	debiancve
EUVD	EUVD-2026-49006	25 Jul 202608:49	–	euvd
NVD	CVE-2026-64294	25 Jul 202610:17	–	nvd
Positive Technologies	PT-2026-64515	25 Jul 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange5.12–6.6.145

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-rc3

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/fs.h",
      "mm/filemap.c",
      "mm/madvise.c",
      "mm/mincore.c"
    ],
    "versions": [
      {
        "version": "9caccd41541a6f7d6279928d9f971f6642c361af",
        "lessThan": "744b23aa430d52f5c8e4dbff7d71496d6643bed2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9caccd41541a6f7d6279928d9f971f6642c361af",
        "lessThan": "8344bdf0629457e532797b42d9d2bbf2a2900bbf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9caccd41541a6f7d6279928d9f971f6642c361af",
        "lessThan": "5c942ad7df75925ee166e7f0fb36892d8dde376b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9caccd41541a6f7d6279928d9f971f6642c361af",
        "lessThan": "04ba248d02d9eaa3d9077b00a6134caa75fa3e90",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9caccd41541a6f7d6279928d9f971f6642c361af",
        "lessThan": "e187bc02f8fa4226d62814592cf064ee4557c470",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/fs.h",
      "mm/filemap.c",
      "mm/madvise.c",
      "mm/mincore.c"
    ],
    "versions": [
      {
        "version": "5.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.12",
        "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-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/8344bdf0629457e532797b42d9d2bbf2a2900bbf
git	www.git.kernel.org/stable/c/04ba248d02d9eaa3d9077b00a6134caa75fa3e90
git	www.git.kernel.org/stable/c/e187bc02f8fa4226d62814592cf064ee4557c470
git	www.git.kernel.org/stable/c/744b23aa430d52f5c8e4dbff7d71496d6643bed2
git	www.git.kernel.org/stable/c/5c942ad7df75925ee166e7f0fb36892d8dde376b

25 Jul 2026 10:17Current

5.8Medium risk

Vulners AI Score5.8