{"cve":"CVE-2023-52840","nvd":{"published":"2024-05-21T16:15:21.377","modified":"2026-06-17T06:43:42.313","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: synaptics-rmi4 - fix use after free in rmi_unregister_function()\n\nThe put_device() calls rmi_release_function() which frees \"fn\" so the\ndereference on the next line \"fn->num_of_irqs\" is a use after free.\nMove the put_device() to the end to fix this.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/2f236d8638f5b43e0c72919a6a27fe286c32053f","https://git.kernel.org/stable/c/303766bb92c5c225cf40f9bbbe7e29749406e2f2","https://git.kernel.org/stable/c/50d12253666195a14c6cd2b81c376e2dbeedbdff","https://git.kernel.org/stable/c/6c71e065befb2fae8f1461559b940c04e1071bd5","https://git.kernel.org/stable/c/7082b1fb5321037bc11ba1cf2d7ed23c6b2b521f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2023-52840","score":0.00242,"percentile":0.15471,"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."]}