{"cve":"CVE-2023-52615","nvd":{"published":"2024-03-18T11:15:08.797","modified":"2026-06-17T06:43:10.067","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: core - Fix page fault dead lock on mmap-ed hwrng\n\nThere is a dead-lock in the hwrng device read path.  This triggers\nwhen the user reads from /dev/hwrng into memory also mmap-ed from\n/dev/hwrng.  The resulting page fault triggers a recursive read\nwhich then dead-locks.\n\nFix this by using a stack buffer when calling copy_to_user.","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":["CWE-667"],"references":["https://git.kernel.org/stable/c/26cc6d7006f922df6cc4389248032d955750b2a0","https://git.kernel.org/stable/c/5030d4c798863ccb266563201b341a099e8cdd48","https://git.kernel.org/stable/c/6822a14271786150e178869f1495cc03e74c5029","https://git.kernel.org/stable/c/78aafb3884f6bc6636efcc1760c891c8500b9922","https://git.kernel.org/stable/c/aa8aa16ed9adf1df05bb339d588cf485a011839e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2023-52615","score":0.00195,"percentile":0.09189,"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."]}