CVE-2026-45953

{
  "id": "CVE-2026-45953",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-05-27T14:17:11.813",
  "lastModified": "2026-11-06T16:18:54.193",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid5: fix IO hang with degraded array with llbitmap\n\nWhen llbitmap bit state is still unwritten, any new write should force\nrcw, as bitmap_ops->blocks_synced() is checked in handle_stripe_dirtying().\nHowever, later the same check is missing in need_this_block(), causing\nstripe to deadloop during handling because handle_stripe() will decide\nto go to handle_stripe_fill(), meanwhile need_this_block() always return\n0 and nothing is handled."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/md/raid5.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "lessThan": "870b9f15867b0e70f3459ef3974b043e8b229690",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "lessThan": "28ef299e7a5b81817f8ca8297c2ddff28f5da5e8",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "5ab829f1971dc99f2aac10846c378e67fc875abc",
              "lessThan": "cd1635d844d26471c56c0a432abdee12fc9ad735",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/md/raid5.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.18",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.18",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.14",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.19.4",
              "lessThanOrEqual": "6.19.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.0",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-11-06T16:02:58.993655Z",
          "id": "CVE-2026-45953",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.18",
              "versionEndExcluding": "6.18.14",
              "matchCriteriaId": "3E0E101B-8972-4E77-80E0-D97AC3CA57C1"
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  "references": [
    {
      "url": "https://git.kernel.org/stable/c/28ef299e7a5b81817f8ca8297c2ddff28f5da5e8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
    {
      "url": "https://git.kernel.org/stable/c/870b9f15867b0e70f3459ef3974b043e8b229690",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    {
      "url": "https://git.kernel.org/stable/c/cd1635d844d26471c56c0a432abdee12fc9ad735",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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}