{"cve":"CVE-2022-50322","nvd":{"published":"2025-09-15T15:15:44.240","modified":"2026-06-17T05:23:14.007","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: msc313: Fix function prototype mismatch in msc313_rtc_probe()\n\nWith clang's kernel control flow integrity (kCFI, CONFIG_CFI_CLANG),\nindirect call targets are validated against the expected function\npointer prototype to make sure the call target is valid to help mitigate\nROP attacks. If they are not identical, there is a failure at run time,\nwhich manifests as either a kernel panic or thread getting killed.\n\nmsc313_rtc_probe() was passing clk_disable_unprepare() directly, which\ndid not have matching prototypes for devm_add_action_or_reset()'s\ncallback argument. Refactor to use devm_clk_get_enabled() instead.\n\nThis was found as a result of Clang's new -Wcast-function-type-strict\nflag, which is more sensitive than the simpler -Wcast-function-type,\nwhich only checks for type width mismatches.","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/21b8a1dd56a163825e5749b303858fb902ebf198","https://git.kernel.org/stable/c/5affaaf3334c9274131dae889ed79ea0553d61b4","https://git.kernel.org/stable/c/ba50fee6b41bcbafaeed3c51f90d37d1480ff9a0"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2022-50322","score":0.00157,"percentile":0.04855,"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."]}