{"cve":"CVE-2021-47480","nvd":{"published":"2024-05-22T09:15:09.907","modified":"2026-06-17T04:17:34.370","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/1105573d964f7b78734348466b01f5f6ba8a1813","https://git.kernel.org/stable/c/1ce287eff9f23181d5644db787f472463a61f68b","https://git.kernel.org/stable/c/61a0faa89f21861d1f8d059123b5c285a5d9ffee","https://git.kernel.org/stable/c/7b57c38d12aed1b5d92f74748bed25e0d041729f","https://git.kernel.org/stable/c/8e4814a461787e15a31d322d9efbe0d4f6822428"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47480","score":0.0021,"percentile":0.11282,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}