GHSA-34HF-3MQJ-6X9G
Vulnerability from github – Published: 2026-10-23 12:31 – Updated: 2026-10-23 12:31In 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.
{
"affected": [],
"aliases": [
"CVE-2026-98871"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-23T12:18:20Z",
"severity": null
},
"details": "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": "GHSA-34hf-3mqj-6x9g",
"modified": "2026-10-23T12:31:36Z",
"published": "2026-10-23T12:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98871"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/364f3841bc22c72b6e2cb72a1e3c91c9c8fc1ef4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e7e06ee7c2938ee3fa31a61cc5289a45c8c13f1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b0e7ec0dab242c5e480121ba12400d0513e37ca2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ffd3a3df92be697eb78118a146c6a5d5e6c1f724"
}
],
"schema_version": "1.4.0",
"severity": []
}
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