CVE-2026-43388

A flaw was found in the Linux kernel's DAMON (Data Access MONitor) subsystem. The `damos_walk()` function in `mm/damon/core` fails to clear a dangling pointer when a context is inactive and an error occurs. This issue can lead to a temporary denial of service (DoS) for subsequent calls to `damos_walk()`, potentially confusing users. Although a use-after-free vulnerability was identified, it is not exploitable in practice.