CVE-2026-43390

In the Linux kernel, the following vulnerability has been resolved: nstree: tighten permission checks for listing Even privileged services should not necessarily be able to see other privileged service's namespaces so they can't leak information to each other. Use mayseeallnamespaces helper that...

CVE-2026-43391

CVE-2026-43391 affects the Linux kernel nsfs component. The issue arises from insufficient permission checks when opening handles, enabling privileged services to potentially view other privileged services’ namespaces and leak information. The fix centralizes policy via may_see_all_namespaces() a...