CVE-2026-98871Medium· 4.1▾ SunlitA flaw was found in the Linux kernel's AMD Cryptographic Coprocessor (CCP) driver. This vulnerability can lead to a Denial of Service (DoS) due to a deadlock during AMD Secure Encrypted Virtualization (SEV) platform initialization. When an…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 22.5 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 25.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 4.1
none → medium
A flaw was found in the Linux kernel's AMD Cryptographic Coprocessor (CCP) driver. This vulnerability can lead to a Denial of Service (DoS) due to a deadlock during AMD Secure Encrypted Virtualization (SEV) platform initialization. When an error occurs while configuring firmware memory, improper lock handling in the cleanup path causes the kernel to wait indefinitely on an already acquired lock. A local privileged user capable of triggering this initialization failure can exploit this flaw to hang the system.
kernel: crypto: ccp - Fix possible deadlock in SEV init failure path — rated Moderate by Red Hat. Released 2026-10-23, updated 2026-10-26.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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