CVE-2026-93079

A flaw was found in the Linux kernel's CXL Compute Express Link feature handling. The cxlctlgetfeature function does not properly validate the size of the output buffer against a user-controlled count value. This oversight allows a local attacker to provide a count larger than the allocated buffe...

CVE-2026-93079 cxl/features: Reject Get Feature count larger than the output buffer

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...

CVE-2026-93079 cxl/features: Reject Get Feature count larger than the output buffer

In the Linux kernel, the following vulnerability has been resolved: cxl/features: Reject Get Feature count larger than the output buffer cxlctlgetfeature sizes its output buffer from the user's fwctlrpc.outlen, but the device is told to write cxlmboxgetfeatin.count bytes into rpcout-payload, whic...