CVE-2026-43403

In the Linux kernel, the following vulnerability has been resolved: nsfs: tighten permission checks for ns iteration ioctls 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.

The following products are affected by CVE-2026-43403 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-43403.

URL	Resource
https://git.kernel.org/stable/c/0ad650e60150eda789deca5e78a6a09d26bf8fc9
https://git.kernel.org/stable/c/2f3dea284c761c890d676f77d5e55c0c496b4ef4
https://git.kernel.org/stable/c/3376b345df155ca36d8611857b41ff7d5183fc38
https://git.kernel.org/stable/c/e6b899f08066e744f89df16ceb782e06868bd148