{"cve":"CVE-2024-39462","nvd":{"published":"2024-06-25T15:15:14.580","modified":"2026-06-17T07:41:57.760","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: dvp: Assign ->num before accessing ->hws\n\nCommit f316cdff8d67 (\"clk: Annotate struct clk_hw_onecell_data with\n__counted_by\") annotated the hws member of 'struct clk_hw_onecell_data'\nwith __counted_by, which informs the bounds sanitizer about the number\nof elements in hws, so that it can warn when hws is accessed out of\nbounds. As noted in that change, the __counted_by member must be\ninitialized with the number of elements before the first array access\nhappens, otherwise there will be a warning from each access prior to the\ninitialization because the number of elements is zero. This occurs in\nclk_dvp_probe() due to ->num being assigned after ->hws has been\naccessed:\n\n  UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-bcm2711-dvp.c:59:2\n  index 0 is out of range for type 'struct clk_hw *[] __counted_by(num)' (aka 'struct clk_hw *[]')\n\nMove the ->num initialization to before the first access of ->hws, which\nclears up the warning.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-400"],"references":["https://git.kernel.org/stable/c/0dc913217fb79096597005bba9ba738e2db5cd02","https://git.kernel.org/stable/c/9368cdf90f52a68120d039887ccff74ff33b4444","https://git.kernel.org/stable/c/a1dd92fca0d6b58b55ed0484f75d4205dbb77010","https://git.kernel.org/stable/c/0dc913217fb79096597005bba9ba738e2db5cd02","https://git.kernel.org/stable/c/9368cdf90f52a68120d039887ccff74ff33b4444"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:52:00.836172422+00:00"},"epss":{"cve":"CVE-2024-39462","score":0.00762,"percentile":0.55354,"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."]}