{"id":"CVE-2026-43181","summary":"gpio: sysfs: fix chip removal with GPIOs exported over sysfs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: sysfs: fix chip removal with GPIOs exported over sysfs\n\nCurrently if we export a GPIO over sysfs and unbind the parent GPIO\ncontroller, the exported attribute will remain under /sys/class/gpio\nbecause once we remove the parent device, we can no longer associate the\ndescriptor with it in gpiod_unexport() and never drop the final\nreference.\n\nRework the teardown code: provide an unlocked variant of\ngpiod_unexport() and remove all exported GPIOs with the sysfs_lock taken\nbefore unregistering the parent device itself. This is done to prevent\nany new exports happening before we unregister the device completely.","modified":"2026-07-08T08:09:35.250683666Z","published":"2026-05-06T11:27:53.626Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43181.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/54f463494eb5bf193ef7d904a493474c451734df"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6766f59012301f1bf3f46c6e7149caca45d92309"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a645cc25904b0baf508b77a0402ce151212b9800"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43181.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43181"},{"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":"1cd53df733c21ae0d344a2dec941a3e2a06fefd9"},{"fixed":"54f463494eb5bf193ef7d904a493474c451734df"},{"fixed":"a645cc25904b0baf508b77a0402ce151212b9800"},{"fixed":"6766f59012301f1bf3f46c6e7149caca45d92309"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43181.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.17.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43181.json"}}],"schema_version":"1.7.5"}