GHSA-QRX6-PJC4-F5P5
Vulnerability from github – Published: 2026-09-25 12:31 – Updated: 2026-09-25 12:31In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: cortina: Count dropped frames as NAPI work
The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can process the entire receive ring in one poll.
Move the budget accounting to a common end-of-frame path. This counts each completed frame as NAPI work whether it was delivered or dropped, matching the behavior of the vendor driver.
{
"affected": [],
"aliases": [
"CVE-2026-97981"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-25T11:17:26Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: cortina: Count dropped frames as NAPI work\n\nThe RX loop only consumes budget when it successfully delivers a frame.\nError paths keep consuming descriptors without reducing the budget, so a\nstream of bad frames can process the entire receive ring in one poll.\n\nMove the budget accounting to a common end-of-frame path. This counts\neach completed frame as NAPI work whether it was delivered or dropped,\nmatching the behavior of the vendor driver.",
"id": "GHSA-qrx6-pjc4-f5p5",
"modified": "2026-09-25T12:31:31Z",
"published": "2026-09-25T12:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-97981"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab"
}
],
"schema_version": "1.4.0",
"severity": []
}
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