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Linux Distros Unpatched Vulnerability : CVE-2026-98871

🗓️ 26 Oct 2026 00:00:00Reported by TenableType 
nessus
 nessus
🔗 www.tenable.com👁 1 Views

Deadlock in Linux kernel crypto: ccp sev_do_cmd during SEV init failure path.

Related
Refs
Code
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98871
23 Oct 202611:57
–circl
cve
CVE
CVE-2026-98871
23 Oct 202611:37
–cve
cvelist
Cvelist
CVE-2026-98871 crypto: ccp - Fix possible deadlock in SEV init failure path
23 Oct 202611:37
–cvelist
debiancve
Debian CVE
CVE-2026-98871
23 Oct 202611:37
–debiancve
euvd
EUVD
EUVD-2026-108717
23 Oct 202611:37
–euvd
nvd
NVD
CVE-2026-98871
23 Oct 202612:18
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98871
23 Oct 202612:18
–osv_debian
osv_ubuntu
osv_ubuntu
UBUNTU-CVE-2026-98871
26 Oct 202600:00
–osv_ubuntu
ptsecurity
Positive Technologies
PT-2026-121841
23 Oct 202600:00
–ptsecurity
redhatcve
RedhatCVE
CVE-2026-98871
26 Oct 202611:01
–redhatcve
Rows per page
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  - 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
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    (CVE-2026-98871)

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          {"reference": "kernel-rt-core"},
          {"reference": "kernel-rt-debug"},
          {"reference": "kernel-rt-debug-core"},
          {"reference": "kernel-rt-debug-devel"},
          {"reference": "kernel-rt-debug-devel-matched"},
          {"reference": "kernel-rt-debug-kvm"},
          {"reference": "kernel-rt-debug-modules"},
          {"reference": "kernel-rt-debug-modules-core"},
          {"reference": "kernel-rt-debug-modules-extra"},
          {"reference": "kernel-rt-debug-modules-internal"},
          {"reference": "kernel-rt-debug-modules-partner"},
          {"reference": "kernel-rt-devel"},
          {"reference": "kernel-rt-devel-matched"},
          {"reference": "kernel-rt-kvm"},
          {"reference": "kernel-rt-modules"},
          {"reference": "kernel-rt-modules-core"},
          {"reference": "kernel-rt-modules-extra"},
          {"reference": "kernel-rt-modules-internal"},
          {"reference": "kernel-rt-modules-partner"},
          {"reference": "kernel-selftests-internal"},
          {"reference": "kernel-tools"},
          {"reference": "kernel-tools-libs"},
          {"reference": "kernel-tools-libs-devel"},
          {"reference": "kernel-uki-virt"},
          {"reference": "kernel-uki-virt-addons"},
          {"reference": "kernel-zfcpdump"},
          {"reference": "kernel-zfcpdump-core"},
          {"reference": "kernel-zfcpdump-devel"},
          {"reference": "kernel-zfcpdump-devel-matched"},
          {"reference": "kernel-zfcpdump-modules"},
          {"reference": "kernel-zfcpdump-modules-core"},
          {"reference": "kernel-zfcpdump-modules-extra"},
          {"reference": "kernel-zfcpdump-modules-internal"},
          {"reference": "kernel-zfcpdump-modules-partner"},
          {"reference": "libperf"},
          {"reference": "libperf-devel"},
          {"reference": "perf"},
          {"reference": "python3-perf"},
          {"reference": "rtla"},
          {"reference": "rv"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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26 Oct 2026 00:00Current
6.2Medium risk
Vulners AI Score6.2
EPSS0.00168
1