{"id":"CVE-2021-47258","state":"PUBLISHED","title":"scsi: core: Fix error handling of scsi_host_alloc()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix error handling of scsi_host_alloc()\n\nAfter device is initialized via device_initialize(), or its name is set via\ndev_set_name(), the device has to be freed via put_device().  Otherwise\ndevice name will be leaked because it is allocated dynamically in\ndev_set_name().\n\nFix the leak by replacing kfree() with put_device(). Since\nscsi_host_dev_release() properly handles IDA and kthread removal, remove\nspecial-casing these from the error handling as well.","publishedAt":"2024-05-21T14:19:52.082Z","updatedAt":"2026-05-11T13:51:01.386Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"8958181c1663e24a13434448e7d6b96b5d04900a","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"db08ce595dd64ea9859f7d088b51cbfc8e685c66","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"79296e292d67fa7b5fb8d8c27343683e823872c8","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"7a696ce1d5d16a33a6cd6400bbcc0339b2460e11","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"45d83db4728127944b237c0c8248987df9d478e7","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"66a834d092930cf41d809c0e989b13cd6f9ca006","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/hosts.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.9.273","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.237","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.195","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.126","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.44","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.11","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/hosts.c"]}],"references":["https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a","https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66","https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a","https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8","https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11","https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7","https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47258.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47258","state":"PUBLISHED","datePublished":"2024-05-21T14:19:52.082Z","dateUpdated":"2026-05-11T13:51:01.386Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-04-10T18:59:19.540Z"},"containers":{"cna":{"title":"scsi: core: Fix error handling of scsi_host_alloc()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Fix error handling of scsi_host_alloc()\n\nAfter device is initialized via device_initialize(), or its name is set via\ndev_set_name(), the device has to be freed via put_device().  Otherwise\ndevice name will be leaked because it is allocated dynamically in\ndev_set_name().\n\nFix the leak by replacing kfree() with put_device(). Since\nscsi_host_dev_release() properly handles IDA and kthread removal, remove\nspecial-casing these from the error handling as well."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"8958181c1663e24a13434448e7d6b96b5d04900a","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"db08ce595dd64ea9859f7d088b51cbfc8e685c66","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"79296e292d67fa7b5fb8d8c27343683e823872c8","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"7a696ce1d5d16a33a6cd6400bbcc0339b2460e11","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"45d83db4728127944b237c0c8248987df9d478e7","versionType":"git"},{"version":"1fa5ae857bb14f6046205171d98506d8112dd74e","status":"affected","lessThan":"66a834d092930cf41d809c0e989b13cd6f9ca006","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/hosts.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.30","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.30","versionType":"semver"},{"version":"4.9.273","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.237","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.195","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.126","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.44","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.12.11","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/hosts.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a"},{"url":"https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66"},{"url":"https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a"},{"url":"https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8"},{"url":"https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11"},{"url":"https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7"},{"url":"https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:51:01.386Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.9.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.14.237"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"4.19.195"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.4.126"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.12.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47258","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-05-23T18:04:09.968762Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:14:07.335Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/8958181c1663e24a13434448e7d6b96b5d04900a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/db08ce595dd64ea9859f7d088b51cbfc8e685c66","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2dc85045ae65b9302a1d2e2ddd7ce4c030153a6a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/79296e292d67fa7b5fb8d8c27343683e823872c8","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7a696ce1d5d16a33a6cd6400bbcc0339b2460e11","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/45d83db4728127944b237c0c8248987df9d478e7","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/66a834d092930cf41d809c0e989b13cd6f9ca006","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:32:07.870Z"}}]}}}