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CVE-2025-40009

🗓️ 20 Oct 2025 15:26:55Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 10 Views

Kernel fix in task_mmu to check p->vec_buf for NULL when vec_len is zero to avoid a null pointer dereference.

Related
Detection
Affected
Refs
Vulners
CNA
Node
linuxlinux_kernelRange6.76.12.50
OR
linuxlinux_kernelRange6.13.06.16.10
OR
linuxlinux_kernelRange6.17.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/proc/task_mmu.c"
    ],
    "versions": [
      {
        "version": "52526ca7fdb905a768a93f8faa418e9b988fc34b",
        "lessThan": "ca988dcdc6683ecd9de5f525ce469588a9141c21",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52526ca7fdb905a768a93f8faa418e9b988fc34b",
        "lessThan": "a2cb8818a3d915cd33a1e8b2babc1bb0c34862c3",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "52526ca7fdb905a768a93f8faa418e9b988fc34b",
        "lessThan": "28aa29986dde79e8466bc87569141291053833f5",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/proc/task_mmu.c"
    ],
    "versions": [
      {
        "version": "6.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.7",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.50",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.16.10",
        "lessThanOrEqual": "6.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 21:40Current
5.9Medium risk
Vulners AI Score5.9
EPSS0.00024
10