CVE-2026-99055

A flaw was found in the Linux kernel's TCP networking subsystem. When handling zero-copy data reception involving certain device memory buffers, the kernel fails to properly validate memory fragment types before dereferencing them, resulting in a null pointer dereference. An attacker sending traffic to an affected system can trigger this condition, causing a kernel crash and leading to a denial of service (DoS).

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.