Improper resource shutdown or release in Linux kernel - CVE-2026-45900
Published: May 28, 2026
Vulnerability identifier: #VU132586
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-45900
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in dpaa2_caam_probe and dpaa2_dpseci_free when handling probe error paths after dpaa2_dpseci_dpio_setup() failure. A local user can trigger repeated probe failures to cause a denial of service.
The issue occurs when DPIO devices are not ready yet and deferred probing retries the operation, leaving previously allocated netdev-related objects unfreed.
How to mitigate CVE-2026-45900
Install security update from vendor's repository.