{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-14T21:42:02.678","vulnerabilities":[{"cve":{"id":"CVE-2021-47195","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2024-04-10T19:15:47.853","lastModified":"2024-11-21T06:35:36.413","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: fix use-after-free of the add_lock mutex\n\nCommit 6098475d4cb4 (\"spi: Fix deadlock when adding SPI controllers on\nSPI buses\") introduced a per-controller mutex. But mutex_unlock() of\nsaid lock is called after the controller is already freed:\n\n  spi_unregister_controller(ctlr)\n  -> put_device(&ctlr->dev)\n    -> spi_controller_release(dev)\n  -> mutex_unlock(&ctrl->add_lock)\n\nMove the put_device() after the mutex_unlock()."},{"lang":"es","value":"En el kernel de Linux, se resolvió la siguiente vulnerabilidad: spi: corrige el use-after-free del mutex add_lock. El commit 6098475d4cb4 (\"spi: corrige el punto muerto al agregar controladores SPI en buses SPI\") introdujo un mutex por controlador. Pero mutex_unlock() de dicho bloqueo se llama después de que el controlador ya está liberado: spi_unregister_controller(ctlr) -> put_device(&ctlr->dev) -> spi_controller_release(dev) -> mutex_unlock(&ctrl->add_lock) Mueva put_device() después el mutex_unlock()."}],"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}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-416"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartExcluding":"5.15.0","versionEndExcluding":"5.15.5","matchCriteriaId":"9E41D489-7457-4244-B477-AF077373C777"}]}]}],"references":[{"url":"https:\/\/git.kernel.org\/stable\/c\/11eab327a2a8bd36c38afbff920ae1bd45588dd4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https:\/\/git.kernel.org\/stable\/c\/37330f37f6666c7739a44b2b6b95b047ccdbed2d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/54c2c96eafcfd242e52e932ab54ace4784efe1dd","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https:\/\/git.kernel.org\/stable\/c\/6c53b45c71b4920b5e62f0ea8079a1da382b9434","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/37330f37f6666c7739a44b2b6b95b047ccdbed2d","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https:\/\/git.kernel.org\/stable\/c\/6c53b45c71b4920b5e62f0ea8079a1da382b9434","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]}]}}]}