{"id":"CVE-2024-47141","summary":"pinmux: Use sequential access to access desc-\u003epinmux data","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npinmux: Use sequential access to access desc-\u003epinmux data\n\nWhen two client of the same gpio call pinctrl_select_state() for the\nsame functionality, we are seeing NULL pointer issue while accessing\ndesc-\u003emux_owner.\n\nLet's say two processes A, B executing in pin_request() for the same pin\nand process A updates the desc-\u003emux_usecount but not yet updated the\ndesc-\u003emux_owner while process B see the desc-\u003emux_usecount which got\nupdated by A path and further executes strcmp and while accessing\ndesc-\u003emux_owner it crashes with NULL pointer.\n\nSerialize the access to mux related setting with a mutex lock.\n\n\tcpu0 (process A)\t\t\tcpu1(process B)\n\npinctrl_select_state() {\t\t  pinctrl_select_state() {\n  pin_request() {\t\t\t\tpin_request() {\n  ...\n\t\t\t\t\t\t ....\n    } else {\n         desc-\u003emux_usecount++;\n    \t\t\t\t\t\tdesc-\u003emux_usecount && strcmp(desc-\u003emux_owner, owner)) {\n\n         if (desc-\u003emux_usecount \u003e 1)\n               return 0;\n         desc-\u003emux_owner = owner;\n\n  }\t\t\t\t\t\t}","modified":"2026-04-16T04:33:04.804299814Z","published":"2025-01-11T12:25:12.399Z","related":["SUSE-SU-2025:0236-1","SUSE-SU-2025:0289-1","SUSE-SU-2025:0428-1","SUSE-SU-2025:0499-1","SUSE-SU-2025:0557-1","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7379-2","USN-7380-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47141.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c11e2ec9a780f54982a187ee10ffd1b810715c85"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47141.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47141"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7"},{"fixed":"2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b"},{"fixed":"c11e2ec9a780f54982a187ee10ffd1b810715c85"},{"fixed":"5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-47141.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}