{"cve":"CVE-2022-49191","nvd":{"published":"2025-02-26T07:00:56.183","modified":"2026-06-17T05:17:20.523","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmxser: fix xmit_buf leak in activate when LSR == 0xff\n\nWhen LSR is 0xff in ->activate() (rather unlike), we return an error.\nProvided ->shutdown() is not called when ->activate() fails, nothing\nactually frees the buffer in this case.\n\nFix this by properly freeing the buffer in a designated label. We jump\nthere also from the \"!info->type\" if now too.","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/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d","https://git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0f","https://git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690","https://git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7c","https://git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edc"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49191","score":0.00276,"percentile":0.20026,"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."]}