{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47521","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-05-24T15:02:54.825Z","datePublished":"2024-05-24T15:09:34.457Z","dateUpdated":"2025-05-04T07:12:46.673Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:12:46.673Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: sja1000: fix use after free in ems_pcmcia_add_card()\n\nIf the last channel is not available then \"dev\" is freed.  Fortunately,\nwe can just use \"pdev->irq\" instead.\n\nAlso we should check if at least one channel was set up."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/can/sja1000/ems_pcmcia.c"],"versions":[{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"cbd86110546f7f730a1f5d7de56c944a336c15c4","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"1dd5b819f7e406dc15bbc7670596ff25261aaa2a","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"c8718026ba287168ff9ad0ccc4f9a413062cba36","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"ccf070183e4655824936c0f96c4a2bcca93419aa","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"1a295fea90e1acbe80c6d4940f5ff856edcd6bec","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"923f4dc5df679f678e121c20bf2fd70f7bf3e288","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"474f9a8534f5f89841240a7e978bafd6e1e039ce","status":"affected","versionType":"git"},{"version":"fd734c6f25aea4b2b44b045e489aec67b388577e","lessThan":"3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45","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/net/can/sja1000/ems_pcmcia.c"],"versions":[{"version":"3.2","status":"affected"},{"version":"0","lessThan":"3.2","status":"unaffected","versionType":"semver"},{"version":"4.4.295","lessThanOrEqual":"4.4.*","status":"unaffected","versionType":"semver"},{"version":"4.9.293","lessThanOrEqual":"4.9.*","status":"unaffected","versionType":"semver"},{"version":"4.14.258","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.221","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.165","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.85","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.8","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":"3.2","versionEndExcluding":"4.4.295"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"4.9.293"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"4.14.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"4.19.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"5.4.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"5.10.85"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"5.15.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"5.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4"},{"url":"https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a"},{"url":"https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36"},{"url":"https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa"},{"url":"https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec"},{"url":"https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288"},{"url":"https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce"},{"url":"https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45"}],"title":"can: sja1000: fix use after free in ems_pcmcia_add_card()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47521","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2024-05-29T16:55:46.664460Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:14:06.426Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:39:59.801Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/cbd86110546f7f730a1f5d7de56c944a336c15c4","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1dd5b819f7e406dc15bbc7670596ff25261aaa2a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c8718026ba287168ff9ad0ccc4f9a413062cba36","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/ccf070183e4655824936c0f96c4a2bcca93419aa","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/1a295fea90e1acbe80c6d4940f5ff856edcd6bec","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/923f4dc5df679f678e121c20bf2fd70f7bf3e288","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/474f9a8534f5f89841240a7e978bafd6e1e039ce","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/3ec6ca6b1a8e64389f0212b5a1b0f6fed1909e45","tags":["x_transferred"]}]}]}}