CVE-2026-98871 (GCVE-0-2026-98871)

Vulnerability from cvelistv5 – Published: 2026-10-23 11:37 – Updated: 2026-10-23 11:37
VLAI
Title
crypto: ccp - Fix possible deadlock in SEV init failure path
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7364a6fbca45f826952ea932699fb2171d06ee73 , < 8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1 (git)
Affected: 7364a6fbca45f826952ea932699fb2171d06ee73 , < ffd3a3df92be697eb78118a146c6a5d5e6c1f724 (git)
Affected: 7364a6fbca45f826952ea932699fb2171d06ee73 , < 364f3841bc22c72b6e2cb72a1e3c91c9c8fc1ef4 (git)
Affected: 7364a6fbca45f826952ea932699fb2171d06ee73 , < b0e7ec0dab242c5e480121ba12400d0513e37ca2 (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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              "operator": "OR"
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          "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."
        }
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      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "crypto: ccp - Fix possible deadlock in SEV init failure path",
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    "cveId": "CVE-2026-98871",
    "datePublished": "2026-10-23T11:37:09.369Z",
    "dateReserved": "2026-09-25T10:25:14.377Z",
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    "state": "PUBLISHED"
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            "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."
          }
        ],
        "id": "CVE-2026-98871",
        "lastModified": "2026-10-23T12:18:20.510",
        "metrics": {},
        "published": "2026-10-23T12:18:20.510",
        "references": [
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
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}



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