{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47195","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-03-25T09:12:14.114Z","datePublished":"2024-04-10T18:56:31.999Z","dateUpdated":"2025-05-04T12:41:14.008Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:41:14.008Z"},"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()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi.c"],"versions":[{"version":"aa3f3d7bef59583f2d3234173105a27ff61ef8fe","lessThan":"54c2c96eafcfd242e52e932ab54ace4784efe1dd","status":"affected","versionType":"git"},{"version":"c8dce228db6f81dbc897a018dfc5c418e917cf64","lessThan":"11eab327a2a8bd36c38afbff920ae1bd45588dd4","status":"affected","versionType":"git"},{"version":"6098475d4cb48d821bdf453c61118c56e26294f0","lessThan":"37330f37f6666c7739a44b2b6b95b047ccdbed2d","status":"affected","versionType":"git"},{"version":"6098475d4cb48d821bdf453c61118c56e26294f0","lessThan":"6c53b45c71b4920b5e62f0ea8079a1da382b9434","status":"affected","versionType":"git"},{"version":"722ef19a161ce3fffb3d1b01ce2301c306639bdd","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/spi/spi.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"5.15.5","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"5.16","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/54c2c96eafcfd242e52e932ab54ace4784efe1dd"},{"url":"https://git.kernel.org/stable/c/11eab327a2a8bd36c38afbff920ae1bd45588dd4"},{"url":"https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d"},{"url":"https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434"}],"title":"spi: fix use-after-free of the add_lock mutex","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47195","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-04-10T19:52:25.727067Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:13:36.222Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:32:07.110Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/37330f37f6666c7739a44b2b6b95b047ccdbed2d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/6c53b45c71b4920b5e62f0ea8079a1da382b9434","tags":["x_transferred"]}]}]}}