CVE-2026-80652

A flaw was found in the Linux kernel's Cryptographic Co-processor CCP driver. A local attacker could trigger a kernel crash, leading to a denial of service DoS, by providing a zero-length certificate chain buffer during a Platform Dynamic Hardware PDH export operation. This issue specifically...

Linux Distros Unpatched Vulnerability : CVE-2026-80652

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to...

CVE-2026-80652

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

CVE-2026-80652

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

UBUNTU-CVE-2026-80652

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

CVE-2026-80652 crypto: ccp - Treat zero-length cert chain as query for blob lengths

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

EUVD-2026-67528

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Treat zero-length cert chain as query for blob lengths When handling a PDH export, treat a zero-length userspace cert chain buffer as a request to query the length of the relevant blobs. Failure to account for the...

CVE-2026-80652

CVE-2026-80652 affects the Linux kernel 's AMD SEV/CCP driver (drivers/crypto/ccp/sev-dev.c ). When handling a PDH export, a zero-length userspace cert chain buffer is not treated as a blob-length query, causing a BUG_ON() crash at arch/x86/mm/physaddr.c due to a physical-address lookup on ZERO_S...