CVE-2026-43390
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 76b6f5dfb3fda76fce1f9990d6fa58adc711122b < 0abd81645fc95ec6a9d4e4813000f22c5efc0ff4 | affected |
| Linux | Linux | 76b6f5dfb3fda76fce1f9990d6fa58adc711122b < 8d76afe84fa2babf604b3c173730d4d2b067e361 | affected |
| Linux | Linux | 6.19 | affected |
| Linux | Linux | 0 < 6.19 | unaffected |
| Linux | Linux | 6.19.9 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0abd81645fc95ec6a9d4e4813000f22c5efc0ff4
- https://git.kernel.org/stable/c/8d76afe84fa2babf604b3c173730d4d2b067e361
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