{"cve":"CVE-2021-47364","nvd":{"published":"2024-05-21T15:15:22.497","modified":"2026-06-17T04:17:17.983","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: Fix memory leak in compat_insnlist()\n\n`compat_insnlist()` handles the 32-bit version of the `COMEDI_INSNLIST`\nioctl (whenwhen `CONFIG_COMPAT` is enabled).  It allocates memory to\ntemporarily hold an array of `struct comedi_insn` converted from the\n32-bit version in user space.  This memory is only being freed if there\nis a fault while filling the array, otherwise it is leaked.\n\nAdd a call to `kfree()` to fix the leak.","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":["CWE-401"],"references":["https://git.kernel.org/stable/c/8d6a21e4cd6a319b0662cbe4ad6199e276ac776a","https://git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596","https://git.kernel.org/stable/c/f217b6c1e28ed0b353634ce4d92a155b80bd1671","https://git.kernel.org/stable/c/8d6a21e4cd6a319b0662cbe4ad6199e276ac776a","https://git.kernel.org/stable/c/bb509a6ffed2c8b0950f637ab5779aa818ed1596"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47364","score":0.00239,"percentile":0.15,"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."]}