CVE-2026-45838

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> bpf: fix end-of-list detection in cgroup_storage_get_next_key()<br /> <br /> list_next_entry() never returns NULL -- when the current element is the<br /> last entry it wraps to the list head via container_of(). The subsequent<br /> NULL check is therefore dead code and get_next_key() never returns<br /> -ENOENT for the last element, instead reading storage-&gt;key from a bogus<br /> pointer that aliases internal map fields and copying the result to<br /> userspace.<br /> <br /> Replace it with list_entry_is_head() so the function correctly returns<br /> -ENOENT when there are no more entries.