{"cve":"CVE-2023-52787","nvd":{"published":"2024-05-21T16:15:17.500","modified":"2026-06-17T06:43:34.930","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: make sure active queue usage is held for bio_integrity_prep()\n\nblk_integrity_unregister() can come if queue usage counter isn't held\nfor one bio with integrity prepared, so this request may be completed with\ncalling profile->complete_fn, then kernel panic.\n\nAnother constraint is that bio_integrity_prep() needs to be called\nbefore bio merge.\n\nFix the issue by:\n\n- call bio_integrity_prep() with one queue usage counter grabbed reliably\n\n- call bio_integrity_prep() before bio merge","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/b0077e269f6c152e807fdac90b58caf012cdbaab","https://git.kernel.org/stable/c/b5c8e0ff76d10f6bf70a7237678f27c20cf59bc9","https://git.kernel.org/stable/c/b80056bd75a16e4550873ecefe12bc8fd190b1cf","https://git.kernel.org/stable/c/e9c309ded295b7f8849097d71ae231456ca79f78","https://git.kernel.org/stable/c/b0077e269f6c152e807fdac90b58caf012cdbaab"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2023-52787","score":0.00236,"percentile":0.14578,"date":"2026-10-31"},"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."]}