CVE-2026-90363
kernel: drm/msm: don't tear down KMS twice when KMS init fails
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's drm/msm component. During the initialization of Kernel Mode Setting (KMS), an error handling path attempts to deallocate resources twice. This double deallocation leads to a use-after-free error, which can cause a system crash. A local attacker could potentially trigger this vulnerability, resulting in a Denial of Service (DoS).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 · Expired Pointer Dereference