UnratedFix available
net: ethernet: cortina: Count dropped frames as NAPI work
Type: advisorySources: OSV
In 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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.271, 5.15.222, 6.1.189, 6.12.111, 6.18.53, 6.6.158, 7.2.7
- CVEs
- CVE-2026-97981
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 19:53 UTC · Revision 1
Source evidence
net: ethernet: cortina: Count dropped frames as NAPI work
core-osv · Original sourcePublished 25 Sept 2026, 10:23 UTC
In 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.
osv:CVE-2026-97981
Kernel
Fixed versions: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2.7
Complete source record
{
"id": "46c2e59b21d565055590c70677517e098661abdc5cb60e9f905a49385be15374",
"url": "https://osv.dev/vulnerability/CVE-2026-97981",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: ethernet: cortina: Count dropped frames as NAPI work",
"summary": "In 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.",
"evidence": "osv:CVE-2026-97981",
"products": [
{
"name": {
"value": "Kernel",
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"prerequisites": [],
"fixed_versions": [
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"value": "5.10.271",
"evidence": "/affected/1/ranges"
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{
"value": "5.15.222",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.189",
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{
"value": "6.6.158",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.111",
"evidence": "/affected/1/ranges"
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{
"value": "6.18.53",
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},
{
"value": "7.2.7",
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"affected_versions": []
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"severity": "unknown",
"structured": {
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"aliases": [
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{
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{
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{
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{
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{
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],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
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"database_specific": {
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"modified": "2026-10-28T02:30:38.906476135Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/27b5753077d1cfda5fe201d2ba602de76a9a09b1",
"https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f",
"https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea",
"https://git.kernel.org/stable/c/620b7184808b25cf58268856f892b9ba83c181fd",
"https://git.kernel.org/stable/c/9620e2ce9b5998ebbf157241f296f8ddb92285c2",
"https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7",
"https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab",
"https://git.kernel.org/stable/c/e858b9b1ea3cbbc353189d07dec40dc16967e290",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97981.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-97981",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97981.json"
}
},
"related_cves": [
{
"value": "CVE-2026-97981",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 506388,
"published_at": "2026-09-25T10:23:17.703+00:00"
}