SB20260528174 - Improper resource shutdown or release in Linux kernel crypto caam driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-45900)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 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

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.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/7d43252b3060b0ba4a192dce5dba85a3f39ffe39
• https://git.kernel.org/stable/c/d5c6f254528caf78d5de7d9646dc21c81d351827
• https://git.kernel.org/stable/c/d7decb572b55d2af33e59e9858fcee5d9ae69175
• https://git.kernel.org/stable/c/e144cce29851610ce9c6eda405ce21118779aa51