GHSA-6G4F-369R-H4VV
Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: fix out-of-bounds access in mmio copy helpers
mt76_mmio_write_copy() and mt76_mmio_read_copy() iterate up to ALIGN(len, 4), so a length that is not a multiple of four reads past the source buffer (write_copy) or writes past the destination (read_copy). Copy the aligned body in the loop and handle the remaining tail through a 4-byte bounce buffer, keeping the register access width unchanged.
{
"affected": [],
"aliases": [
"CVE-2026-90369"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-17T17:17:36Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: fix out-of-bounds access in mmio copy helpers\n\nmt76_mmio_write_copy() and mt76_mmio_read_copy() iterate up to\nALIGN(len, 4), so a length that is not a multiple of four reads past the\nsource buffer (write_copy) or writes past the destination (read_copy).\nCopy the aligned body in the loop and handle the remaining tail through a\n4-byte bounce buffer, keeping the register access width unchanged.",
"id": "GHSA-6g4f-369r-h4vv",
"modified": "2026-09-17T18:32:02Z",
"published": "2026-09-17T18:32:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90369"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6689b4a65e88d7b019e687fa9d6943ca070f3e43"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6ed0fba58bb125a8d8de96e391aa86111166efca"
}
],
"schema_version": "1.4.0",
"severity": []
}
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