CVE-2026-90340
In the Linux kernel, the following vulnerability has been resolved: pinctrl: generic: free maps on pinctrl_generic_to_map() failure pinctrl_generic_to_map() parses DT configuration and allocates…
Overview
CVE-2026-90340 is a known-severity vulnerability. It was published on September 17, 2026.
Technical description
In the Linux kernel, the following vulnerability has been resolved:
pinctrl: generic: free maps on pinctrl_generic_to_map() failure
pinctrl_generic_to_map() parses DT configuration and allocates pinctrl
maps via pinctrl_utils_reserve_map().
If subsequent steps (such as pinctrl_utils_add_map_mux(),
pinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or
pinctrl_utils_add_map_configs()) return an error, *maps may contain
partially allocated map entries. Returning the error directly without
freeing *maps leaks the allocated mapping memory across all drivers
that rely on pinctrl_generic_to_map().
Fix this by calling pinctrl_utils_free_map() and resetting *maps,
*num_maps, and *num_reserved_maps in the error path of
pinctrl_generic_to_map().
Remediation
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
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Frequently asked questions
What is CVE-2026-90340?
CVE-2026-90340 is a known-severity vulnerability. It was published on September 17, 2026.
How severe is CVE-2026-90340?
CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.
How do I fix or remediate CVE-2026-90340?
Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-90340?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-90340 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.