CVE-2026-98533 (GCVE-0-2026-98533)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:17 – Updated: 2026-10-19 09:21
VLAI
Title
ipe: protect the dm-verity root hash with RCU
Summary
In the Linux kernel, the following vulnerability has been resolved: ipe: protect the dm-verity root hash with RCU ipe_bdev_setintegrity() frees the old root hash when dm-verity publishes a new one on ->preresume, while policy evaluation can still be dereferencing it. Protect the root hash with RCU. The evaluation path already runs under rcu_read_lock(). [FW: remove model name according to latest guideline]
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6940 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e155858dd99523d4afe0f74e9c26e4f4499eb5af , < 3bd335ed62444bec61201df7d368a0779e5bd300 (git)
Affected: e155858dd99523d4afe0f74e9c26e4f4499eb5af , < 599d0498a39319285afa908762e0c9fad29f772e (git)
Affected: e155858dd99523d4afe0f74e9c26e4f4499eb5af , < d7c5bd3159235edb0f2febe2cd3d3b0fb53986f1 (git)
Affected: e155858dd99523d4afe0f74e9c26e4f4499eb5af , < 2776e9c28513a1c855a94792b292cbcc533418c8 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/ipe/eval.c",
            "security/ipe/eval.h",
            "security/ipe/hooks.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3bd335ed62444bec61201df7d368a0779e5bd300",
              "status": "affected",
              "version": "e155858dd99523d4afe0f74e9c26e4f4499eb5af",
              "versionType": "git"
            },
            {
              "lessThan": "599d0498a39319285afa908762e0c9fad29f772e",
              "status": "affected",
              "version": "e155858dd99523d4afe0f74e9c26e4f4499eb5af",
              "versionType": "git"
            },
            {
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            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
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          "programFiles": [
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            "security/ipe/eval.h",
            "security/ipe/hooks.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "6.12"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                },
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                },
                {
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                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipe: protect the dm-verity root hash with RCU\n\nipe_bdev_setintegrity() frees the old root hash when dm-verity publishes\na new one on -\u003epreresume, while policy evaluation can still be\ndereferencing it.\n\nProtect the root hash with RCU. The evaluation path already runs under\nrcu_read_lock().\n\n[FW: remove model name according to latest guideline]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:21:16.820Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3bd335ed62444bec61201df7d368a0779e5bd300"
        },
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          "url": "https://git.kernel.org/stable/c/599d0498a39319285afa908762e0c9fad29f772e"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7c5bd3159235edb0f2febe2cd3d3b0fb53986f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/2776e9c28513a1c855a94792b292cbcc533418c8"
        }
      ],
      "title": "ipe: protect the dm-verity root hash with RCU",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98533",
    "datePublished": "2026-10-18T15:17:51.339Z",
    "dateReserved": "2026-09-25T10:25:14.355Z",
    "dateUpdated": "2026-10-19T09:21:16.820Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-98533",
      "date": "2026-10-22",
      "epss": "0.00209",
      "percentile": "0.10485"
    },
    "microsoft_vex": {
      "current_release_date": "2026-10-21T18:38:44.000Z",
      "cve": "CVE-2026-98533",
      "id": "msrc_CVE-2026-98533",
      "initial_release_date": "2026-10-20T22:24:34.000Z",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "ipe: protect the dm-verity root hash with RCU",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98533.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "security/ipe/eval.c",
                  "security/ipe/eval.h",
                  "security/ipe/hooks.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
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                    "versionType": "semver"
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                    "versionType": "semver"
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                    "versionType": "semver"
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                    "lessThanOrEqual": "7.2.*",
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              }
            ],
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipe: protect the dm-verity root hash with RCU\n\nipe_bdev_setintegrity() frees the old root hash when dm-verity publishes\na new one on -\u003epreresume, while policy evaluation can still be\ndereferencing it.\n\nProtect the root hash with RCU. The evaluation path already runs under\nrcu_read_lock().\n\n[FW: remove model name according to latest guideline]"
          }
        ],
        "id": "CVE-2026-98533",
        "lastModified": "2026-10-19T10:19:08.843",
        "metrics": {},
        "published": "2026-10-18T16:17:04.933",
        "references": [
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "cve": "CVE-2026-98533",
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      "title": "kernel: ipe: protect the dm-verity root hash with RCU",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98533.json",
      "version": "3"
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      "status": "interim",
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      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-98533.json",
      "version": "2"
    }
  }
}



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