CVE-2026-98565
kernel: net: dsa: mt7530: fix NULL dereference on unbind of MT7531 and MT7621
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's MediaTek MT7530 network switch driver. This flaw allows a local user with administrative privileges to cause a Denial of Service (DoS) through a kernel crash. The issue occurs during driver unbinding or module removal on specific hardware variants, where the kernel attempts to disable uninitialized power regulators, triggering a null pointer dereference.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference