CVE-2026-43390

Published: May 8, 2026

Modified: May 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
Linux	Linux	affected `76b6f5dfb3fda76fce1f9990d6fa58adc711122b - < 0abd81645fc95ec6a9d4e4813000f22c5efc0ff4` affected `76b6f5dfb3fda76fce1f9990d6fa58adc711122b - < 8d76afe84fa2babf604b3c173730d4d2b067e361`
Linux	Linux	affected `6.19` unaffected `0 - < 6.19` unaffected `6.19.9 - <= 6.19.` unaffected `7.0 - <= `

References

https://git.kernel.org/stable/c/0abd81645fc95ec6a9d4e4813000f22c5efc0ff4

https://git.kernel.org/stable/c/8d76afe84fa2babf604b3c173730d4d2b067e361

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CVE-2026-43390

Description

Affected Products

References