CVE-2026-68175

A flaw was found in the Linux kernel's mmiotrace tracer. A local user could repeatedly read from the trace_pipe file without fully completing the read operation. This improper handling of resource cleanup leads to a significant memory leak and leaves stale references. The continuous accumulation of these leaked resources can result in a Denial of Service (DoS) due to system instability or exhaustion of available memory.

This issue affects users of the mmiotrace tracer via trace_pipe. Resources allocated in pipe_open() were never freed on close, leaking memory per open/close cycle. Systems not using mmiotrace are not affected.

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.