{"cve":"CVE-2026-98349","nvd":{"published":"2026-10-06T09:18:28.127","modified":"2026-10-19T10:18:37.510","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: reject too-short beacon and probe responses\n\nlibipw_process_probe_response() and the libipw_network_init() call it\nmakes assume the frame contains the full 36-byte beacon and probe\nresponse prefix, but the ipw2100 and ipw2200 receive paths only\nestablish that a management frame carries the generic 24-byte\nthree-address header.\n\nlibipw_network_init() then computes the information element length as\n\n\tstats->len - sizeof(*beacon)\n\nstats->len is a u16 and sizeof() has type size_t, so the subtraction is\nevaluated as size_t and wraps instead of going negative.  Truncating\nthat to the u16 length parameter of libipw_parse_info_param() yields\n65524 for a 24-byte beacon, and the parser then walks the receive\nbuffer as if it held almost 64 KiB of information elements, reading\npast the allocation.\n\nReject the frame before any fixed field is touched.\n\nFound by an AI-assisted review of length arithmetic in management frame\nparsers.  Verified with a KUnit case under Generic KASAN on arm64 under\nQEMU; I do not have the hardware, so it is not tested on a real device.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","score":7.1},"cwes":[],"references":["https://git.kernel.org/stable/c/14ae269c1306053ddf1ccf37c4bd66e085a652d1","https://git.kernel.org/stable/c/19959fb60228f6dccc40d55507f8b1a751c2dc89","https://git.kernel.org/stable/c/23afeb5d2bdfd34c8a0a661876291a4fa9978293","https://git.kernel.org/stable/c/2c87bbc00dc93149d1dc4f803ad92d92e4ef3758","https://git.kernel.org/stable/c/5ce5721e8cbe3e80db8f43851cc2a2a92485ef4b"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:57:46.668721662+00:00"},"epss":{"cve":"CVE-2026-98349","score":0.00248,"percentile":0.15904,"date":"2026-10-25"},"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."]}