CVE-2026-64400 ksmbd: prevent path traversal bypass by restricting caseless retry

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent path traversal bypass by restricting caseless retry ksmbdvfspathlookup enforces LOOKUPBENEATH to restrict path resolution within the share root. When a crafted path attempts to escape the share boundary using...

CVE-2025-15547 Jail escape by a privileged user via nullfs

By default, jailed processes cannot mount filesystems, including nullfs4. However, the allow.mount.nullfs option enables mounting nullfs filesystems, subject to privilege checks. If a privileged user within a jail is able to nullfs-mount directories, a limitation of the kernel's path lookup logic...