CVE-2026-43390 — nstree: tighten permission checks for listing
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 se…
Published: 2026-05-08 · CVSS: Unscored
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 may_see_all_namespaces() helper that centralizes this policy until the nstree adapts.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7