CVE-2026-64417 mm: shrinker: fix NULL pointer dereference in debugfs

🗓️ 25 Jul 2026 08:50:56Reported by LinuxType

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix NULL pointer dereference in debugfs shrinker_debugfs_add() creates both "count" and "scan" debugfs filesunconditionally. That assumes every shrinker implements b...

Reporter	Title	Published	Views	Family All 4
CVE	CVE-2026-64417	25 Jul 202608:50	–	cve
EUVD	EUVD-2026-48961	25 Jul 202608:50	–	euvd
NVD	CVE-2026-64417	25 Jul 202610:17	–	nvd
Positive Technologies	PT-2026-64638	25 Jul 202600:00	–	ptsecurity

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/shrinker_debug.c"
    ],
    "versions": [
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "ebb45c2648b1f60715fd283700f651e05e431231",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "09d2407985b8ce3e831f9d4310fe7ac06a6b3ae9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "36f8534f461222291a74156ab91f3ba9f09b6f93",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "006467ab932698612398f853344a7405164541f4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "b9beed2322f3538b0d2d53307062da4102b8d8d8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bbf535fd6f06b94b9d07ed6f09397a936d4a58d8",
        "lessThan": "e30453c61e185e914fde83c650e268067b140218",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/shrinker_debug.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "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-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/36f8534f461222291a74156ab91f3ba9f09b6f93
git	www.git.kernel.org/stable/c/09d2407985b8ce3e831f9d4310fe7ac06a6b3ae9
git	www.git.kernel.org/stable/c/ebb45c2648b1f60715fd283700f651e05e431231
git	www.git.kernel.org/stable/c/e30453c61e185e914fde83c650e268067b140218
git	www.git.kernel.org/stable/c/b9beed2322f3538b0d2d53307062da4102b8d8d8
git	www.git.kernel.org/stable/c/006467ab932698612398f853344a7405164541f4

25 Jul 2026 08:50Current