{"cve":"CVE-2021-47016","nvd":{"published":"2024-02-29T23:15:07.307","modified":"2026-06-17T04:16:11.737","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nm68k: mvme147,mvme16x: Don't wipe PCC timer config bits\n\nDon't clear the timer 1 configuration bits when clearing the interrupt flag\nand counter overflow. As Michael reported, \"This results in no timer\ninterrupts being delivered after the first. Initialization then hangs\nin calibrate_delay as the jiffies counter is not updated.\"\n\nOn mvme16x, enable the timer after requesting the irq, consistent with\nmvme147.","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/1dfb26df15fc7036a74221d43de7427f74293dae","https://git.kernel.org/stable/c/43262178c043032e7c42d00de44c818ba05f9967","https://git.kernel.org/stable/c/5d34225169346cab5145978d153b9ce90e9ace21","https://git.kernel.org/stable/c/73fdeb612d25b5e105c219e05434285a45d23576","https://git.kernel.org/stable/c/f6a90818a32058fca62cda3a2027a6a2364e1878"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:46:54.846886191+00:00"},"epss":{"cve":"CVE-2021-47016","score":0.00222,"percentile":0.12826,"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."]}