CVE-2026-90067

A flaw was found in the Linux kernel's libceph component. A remote attacker could exploit this by sending a specially crafted Ceph messenger v2 protocol banner with a zero-length payload. This malformed banner causes the kernel to attempt a zero-length socket read, which violates internal state machine invariants. The consequence is a warning and the abortion of the connection, potentially leading to a Denial of Service (DoS) for affected systems.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.