GHSA-M222-4JCJ-V2HX
Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-30 15:34In the Linux kernel, the following vulnerability has been resolved:
wifi: wfx: validate MIB read length before copying to caller
wfx_hif_read_mib() copies reply->length bytes from the firmware response into the caller-provided buffer without checking that reply->length does not exceed val_len. A firmware response with a length field larger than expected overruns the caller buffer and reads past the end of the reply allocation.
Replace the dead -ENOMEM check with an active validation that reply->length fits within val_len before the memcpy.
{
"affected": [],
"aliases": [
"CVE-2026-98830"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:37Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wfx: validate MIB read length before copying to caller\n\nwfx_hif_read_mib() copies reply-\u003elength bytes from the firmware\nresponse into the caller-provided buffer without checking that\nreply-\u003elength does not exceed val_len. A firmware response with\na length field larger than expected overruns the caller buffer and\nreads past the end of the reply allocation.\n\nReplace the dead -ENOMEM check with an active validation that\nreply-\u003elength fits within val_len before the memcpy.",
"id": "GHSA-m222-4jcj-v2hx",
"modified": "2026-10-30T15:34:04Z",
"published": "2026-10-18T18:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98830"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/02886c18a340da59df57365f29009e1258bfe333"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/71d140099165de03128c00dd129f1eab21c6a3c4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7acb36fd60a3e7b858f12e69a919c3609b281408"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/819d4c1323e2a9b7329021d5367aa01add22b5dc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b8310b55e53622a393d14af4939f620c1828778b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce67ebe9d8629776ce38e6995ae72fb903c828db"
}
],
"schema_version": "1.4.0",
"severity": []
}
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