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CVE-2025-21980 sched: address a potential NULL pointer dereference in the GRED scheduler.

🗓️ 01 Apr 2025 15:47:09Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

CVE-2025-21980 fixes NULL pointer dereference in GRED scheduler of Linux kernel to prevent crashes.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/sch_gred.c"
    ],
    "versions": [
      {
        "version": "f25c0515c521375154c62c72447869f40218c861",
        "lessThan": "d02c9acd68950a444acda18d514e2b41f846cb7f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f25c0515c521375154c62c72447869f40218c861",
        "lessThan": "0f0a152957d64ce45b4c27c687e7d087e8f45079",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f25c0515c521375154c62c72447869f40218c861",
        "lessThan": "68896dd50180b38ea552e49a6a00b685321e5769",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f25c0515c521375154c62c72447869f40218c861",
        "lessThan": "5f996b4f80c2cef1f9c77275055e7fcba44c9199",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "f25c0515c521375154c62c72447869f40218c861",
        "lessThan": "115ef44a98220fddfab37a39a19370497cd718b9",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/sched/sch_gred.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.132",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.84",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.20",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.13.8",
        "lessThanOrEqual": "6.13.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.14",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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