{"id":"CVE-2026-90340","title":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: generic: free maps on pinctrl_generic_to_map() failure\n\npinctrl_generic_to_map() parses DT configuration and allocates pinctrl\nmaps via pinctrl_utils_reserve_m…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: generic: free maps on pinctrl_generic_to_map() failure\n\npinctrl_generic_to_map() parses DT configuration and allocates pinctrl\nmaps via pinctrl_utils_reserve_m…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= aaaf31be04260316036f50a05b7d015c0d36b55a < 09f47abc95ee9e819e7e93cd68c1c23abe11c842","Linux >= aaaf31be04260316036f50a05b7d015c0d36b55a < 17007cd700601777d9ee203a13d97e64ece3a10f","Linux 7.2"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:32.633","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90340","references":[{"url":"https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90340.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90340"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536141"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90340"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90340"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90340.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-17T16:21:47.818Z","epss":0.00198,"epssPercentile":0.09444,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-90340","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: generic: free maps on pinctrl_generic_to_map() failure\n\npinctrl_generic_to_map() parses DT configuration and allocates pinctrl\nmaps via pinctrl_utils_reserve_map().\n\nIf subsequent steps (such as pinctrl_utils_add_map_mux(),\npinctrl_generic_add_group(), pinconf_generic_parse_dt_config(), or\npinctrl_utils_add_map_configs()) return an error, *maps may contain\npartially allocated map entries. Returning the error directly without\nfreeing *maps leaks the allocated mapping memory across all drivers\nthat rely on pinctrl_generic_to_map().\n\nFix this by calling pinctrl_utils_free_map() and resetting *maps,\n*num_maps, and *num_reserved_maps in the error path of\npinctrl_generic_to_map().\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90340.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216245,"id":"CVE-2026-90340","ts":1791274049448,"field":"cvss","old":null,"new":"5.5"},{"seq":216244,"id":"CVE-2026-90340","ts":1791274049448,"field":"severity","old":"none","new":"medium"}]}