{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47358","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-21T14:28:16.988Z","datePublished":"2024-05-21T14:44:50.221Z","dateUpdated":"2025-05-04T07:09:18.414Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:09:18.414Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: greybus: uart: fix tty use after free\n\nUser space can hold a tty open indefinitely and tty drivers must not\nrelease the underlying structures until the last user is gone.\n\nSwitch to using the tty-port reference counter to manage the life time\nof the greybus tty state to avoid use after free after a disconnect."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/greybus/uart.c"],"versions":[{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"64062fcaca8872f063ec9da011e7bf30470be33f","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"a5cfd51f6348e8fd7531461366946039c29c7e69","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"4dc56951a8d9d61d364d346c61a5f1d70b4f5e14","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"b9e697e60ce9890e9258a73eb061288e7d68e5e6","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"9872ff6fdce8b229f01993b611b5d1719cb70ff1","status":"affected","versionType":"git"},{"version":"a18e15175708d39abbe9746ddc3479466b7800c3","lessThan":"92dc0b1f46e12cfabd28d709bb34f7a39431b44f","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/staging/greybus/uart.c"],"versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","status":"unaffected","versionType":"semver"},{"version":"4.9.285","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.249","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.209","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.150","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.70","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.14.9","lessThanOrEqual":"5.14.*","status":"unaffected","versionType":"semver"},{"version":"5.15","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":"4.9","versionEndExcluding":"4.9.285"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"4.14.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"4.19.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.4.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.10.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.14.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/92b67aaafb7c449db9f0c3dcabc0ff967cb3a42d"},{"url":"https://git.kernel.org/stable/c/64062fcaca8872f063ec9da011e7bf30470be33f"},{"url":"https://git.kernel.org/stable/c/a5cfd51f6348e8fd7531461366946039c29c7e69"},{"url":"https://git.kernel.org/stable/c/4dc56951a8d9d61d364d346c61a5f1d70b4f5e14"},{"url":"https://git.kernel.org/stable/c/b9e697e60ce9890e9258a73eb061288e7d68e5e6"},{"url":"https://git.kernel.org/stable/c/9872ff6fdce8b229f01993b611b5d1719cb70ff1"},{"url":"https://git.kernel.org/stable/c/92dc0b1f46e12cfabd28d709bb34f7a39431b44f"}],"title":"staging: 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