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 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().

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842
https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-90340

Mitre link : CVE-2026-90340

CVE.ORG link : CVE-2026-90340

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-90340", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "aaaf31be04260316036f50a05b7d015c0d36b55a", "lessThan": "09f47abc95ee9e819e7e93cd68c1c23abe11c842", "versionType": "git"}, {"status": "affected", "version": "aaaf31be04260316036f50a05b7d015c0d36b55a", "lessThan": "17007cd700601777d9ee203a13d97e64ece3a10f", "versionType": "git"}], "programFiles": ["drivers/pinctrl/pinctrl-generic.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "7.2"}, {"status": "unaffected", "version": "0", "lessThan": "7.2", "versionType": "semver"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/pinctrl/pinctrl-generic.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:17:32.633", "references": [{"url": "https://git.kernel.org/stable/c/09f47abc95ee9e819e7e93cd68c1c23abe11c842", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/17007cd700601777d9ee203a13d97e64ece3a10f", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "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_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()."}], "lastModified": "2026-09-17T17:17:32.633", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}