{"cve":"CVE-2021-47252","nvd":{"published":"2024-05-21T15:15:14.083","modified":"2026-06-17T04:17:01.143","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: Avoid WARN_ON timing related checks\n\nThe soft/batadv interface for a queued OGM can be changed during the time\nthe OGM was queued for transmission and when the OGM is actually\ntransmitted by the worker.\n\nBut WARN_ON must be used to denote kernel bugs and not to print simple\nwarnings. A warning can simply be printed using pr_warn.","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/282baa8104af44e04c4af3e7f933b44267c7f86f","https://git.kernel.org/stable/c/2eb4e0b3631832a4291c8bf4c9db873f60b128c8","https://git.kernel.org/stable/c/45011f2973f6b52cf50db397bb27bf805f5f0e7f","https://git.kernel.org/stable/c/6031daaaf6d5c359c99dfffa102e332df234ff09","https://git.kernel.org/stable/c/77a99aad5bc3ea105806ebae6be3cbadc2fc615e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47252","score":0.00226,"percentile":0.13359,"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."]}