CVE-2026-98871 (GCVE-0-2026-98871)
Vulnerability from cvelistv5
Published
2026-10-23 11:37
Modified
2026-10-23 11:37
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix possible deadlock in SEV init failure path __sev_platform_init_handle_init_ex_path() calls rmp_mark_pages_firmware() with locked=false while the parent function of init_ex_path already acquired the sev_cmd_mutex. In the case of an RMPUPDATE failure for any page after the first, the cleanup path would invoke reclaim pages which would result in a deadlock in sev_do_cmd. Pass locked=true to honor the lock status of the parent function.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7364a6fbca45f826952ea932699fb2171d06ee73
Version: 7364a6fbca45f826952ea932699fb2171d06ee73
Version: 7364a6fbca45f826952ea932699fb2171d06ee73
Version: 7364a6fbca45f826952ea932699fb2171d06ee73
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/ccp/sev-dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1",
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              "versionType": "git"
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          "programFiles": [
            "drivers/crypto/ccp/sev-dev.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.6",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: ccp - Fix possible deadlock in SEV init failure path\n\n__sev_platform_init_handle_init_ex_path() calls\nrmp_mark_pages_firmware() with locked=false while the parent\nfunction of init_ex_path already acquired the sev_cmd_mutex.\nIn the case of an RMPUPDATE failure for any page after the first, the cleanup\npath would invoke reclaim pages which would result in a deadlock in\nsev_do_cmd.\n\nPass locked=true to honor the lock status of the parent function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T11:37:09.369Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/ffd3a3df92be697eb78118a146c6a5d5e6c1f724"
        },
        {
          "url": "https://git.kernel.org/stable/c/364f3841bc22c72b6e2cb72a1e3c91c9c8fc1ef4"
        },
        {
          "url": "https://git.kernel.org/stable/c/b0e7ec0dab242c5e480121ba12400d0513e37ca2"
        }
      ],
      "title": "crypto: ccp - Fix possible deadlock in SEV init failure path",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98871",
    "datePublished": "2026-10-23T11:37:09.369Z",
    "dateReserved": "2026-09-25T10:25:14.377Z",
    "dateUpdated": "2026-10-23T11:37:09.369Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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