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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-43390

nstree: tighten permission checks for listing

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 76b6f5dfb3fda76fce1f9990d6fa58adc711122b to < 0abd81645fc95ec6a9d4e4813000f22c5efc0ff4affected
  • 76b6f5dfb3fda76fce1f9990d6fa58adc711122b to < 8d76afe84fa2babf604b3c173730d4d2b067e361affected

Linux Linux

Default version status: affected

  • 6.19affected
  • 0 to < 6.19unaffected
  • 6.19.9 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References