{"api_version":"1","generated_at":"2026-05-13T11:43:22+00:00","cve":"CVE-2026-43181","urls":{"html":"https://cve.report/CVE-2026-43181","api":"https://cve.report/api/cve/CVE-2026-43181.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43181","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43181"},"summary":{"title":"gpio: sysfs: fix chip removal with GPIOs exported over sysfs","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-06 12:16:36","updated_at":"2026-05-11 20:53:27"},"problem_types":["NVD-CWE-noinfo"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/54f463494eb5bf193ef7d904a493474c451734df","name":"https://git.kernel.org/stable/c/54f463494eb5bf193ef7d904a493474c451734df","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a645cc25904b0baf508b77a0402ce151212b9800","name":"https://git.kernel.org/stable/c/a645cc25904b0baf508b77a0402ce151212b9800","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6766f59012301f1bf3f46c6e7149caca45d92309","name":"https://git.kernel.org/stable/c/6766f59012301f1bf3f46c6e7149caca45d92309","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43181","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43181","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1cd53df733c21ae0d344a2dec941a3e2a06fefd9 54f463494eb5bf193ef7d904a493474c451734df git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1cd53df733c21ae0d344a2dec941a3e2a06fefd9 a645cc25904b0baf508b77a0402ce151212b9800 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1cd53df733c21ae0d344a2dec941a3e2a06fefd9 6766f59012301f1bf3f46c6e7149caca45d92309 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.17","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.17 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.16 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.6 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"43181","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpio/gpiolib-sysfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"54f463494eb5bf193ef7d904a493474c451734df","status":"affected","version":"1cd53df733c21ae0d344a2dec941a3e2a06fefd9","versionType":"git"},{"lessThan":"a645cc25904b0baf508b77a0402ce151212b9800","status":"affected","version":"1cd53df733c21ae0d344a2dec941a3e2a06fefd9","versionType":"git"},{"lessThan":"6766f59012301f1bf3f46c6e7149caca45d92309","status":"affected","version":"1cd53df733c21ae0d344a2dec941a3e2a06fefd9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpio/gpiolib-sysfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.17"},{"lessThan":"6.17","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.16","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.16","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.6","versionStartIncluding":"6.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.17","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-05-06T11:27:53.626Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/54f463494eb5bf193ef7d904a493474c451734df"},{"url":"https://git.kernel.org/stable/c/a645cc25904b0baf508b77a0402ce151212b9800"},{"url":"https://git.kernel.org/stable/c/6766f59012301f1bf3f46c6e7149caca45d92309"}],"title":"gpio: sysfs: fix chip removal with GPIOs exported over sysfs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43181","datePublished":"2026-05-06T11:27:53.626Z","dateReserved":"2026-05-01T14:12:55.991Z","dateUpdated":"2026-05-06T11:27:53.626Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-06 12:16:36","lastModifiedDate":"2026-05-11 20:53:27","problem_types":["NVD-CWE-noinfo"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.16","matchCriteriaId":"742E05BA-773A-4EF3-822F-A4A7DED31A65"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.6","matchCriteriaId":"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43181","Ordinal":"1","Title":"gpio: sysfs: fix chip removal with GPIOs exported over sysfs","CVE":"CVE-2026-43181","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43181","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"gpio: sysfs: fix chip removal with GPIOs exported over sysfs"}]}}}