Advisory [CVE-2026-52978] require admin permission for dev-set and key-rotate
This security Red Hat Linux advisory covers CVE-2026-52978.
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Summary
In the Linux kernel, the following vulnerability has been resolved: net: psp: require admin permission for dev-set and key-rotate The dev-set and key-rotate netlink operations modify shared device state (PSP version configuration and cryptographic key material, respectively) but do not require CAP_NET_ADMIN.
The only access control is psp_dev_check_access() which merely verifies netns membership. A flaw was found in the Linux kernel's Platform Security Processor (PSP) networking component.
A local user without administrative privileges could exploit this vulnerability by utilizing the `dev-set` and `key-rotate` netlink operations. This could lead to unauthorized modification of critical system security settings and cryptographic keys.
Red Hat severity: not rated. Weakness: CWE-266.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 9 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 9 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 9 days ago·verify at source
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