CVE-2021-47480

{"id": "CVE-2021-47480", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2024-05-22T09:15:09.907", "references": [{"url": "https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/c2df161f69fb1c67f63adbd193368b47f511edc0", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/f2b85040acec9a928b4eb1b57a989324e8e38d3f", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://git.kernel.org/stable/c/f30822c0b4c35ec86187ab055263943dc71a6836", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: core: Put LLD module refcnt after SCSI device is released\n\nSCSI host release is triggered when SCSI device is freed. We have to make\nsure that the low-level device driver module won't be unloaded before SCSI\nhost instance is released because shost->hostt is required in the release\nhandler.\n\nMake sure to put LLD module refcnt after SCSI device is released.\n\nFixes a kernel panic of 'BUG: unable to handle page fault for address'\nreported by Changhui and Yi."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: core: colocar el m\u00f3dulo LLD refcnt despu\u00e9s de liberar el dispositivo SCSI. La liberaci\u00f3n del host SCSI se activa cuando se libera el dispositivo SCSI. Tenemos que asegurarnos de que el m\u00f3dulo del controlador de dispositivo de bajo nivel no se descargue antes de que se lance la instancia del host SCSI porque se requiere shost->hostt en el controlador de lanzamiento. Aseg\u00farese de poner el m\u00f3dulo LLD refcnt despu\u00e9s de lanzar el dispositivo SCSI. Corrige un problema de p\u00e1nico del kernel de 'ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n' informado por Changhui y Yi."}], "lastModified": "2025-09-29T16:43:08.450", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E44D7B05-DE06-4714-AB39-F8242F1E49F2", "versionEndExcluding": "4.4.292"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85D8337A-4EA1-4787-85EA-4BF4328A9436", "versionEndExcluding": "4.9.290", "versionStartIncluding": "4.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "436BD498-0DB1-4290-9A36-A52CB11B3AC3", "versionEndExcluding": "4.14.255", "versionStartIncluding": "4.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F384B60-1DBA-4E2B-9110-0087D95F30DB", "versionEndExcluding": "4.19.216", "versionStartIncluding": "4.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90BDA665-668F-4013-AB98-81ADFF4DAD38", "versionEndExcluding": "5.4.158", "versionStartIncluding": "4.20"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D3B5073C-E848-4302-BB1E-80EAE2E56FFC", "versionEndExcluding": "5.10.78", "versionStartIncluding": "5.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AECD183A-92E2-4400-AD1C-744EE7A466DC", "versionEndExcluding": "5.14.17", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9E9481B2-8AA6-4CBD-B5D3-C10F51FF6D01"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EBD45831-4B79-42BC-ABC0-86870F0DEA89"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}