CVE-2026-98958 (GCVE-0-2026-98958)
Vulnerability from cvelistv5
Published
2026-10-23 12:19
Modified
2026-10-23 12:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: account non-AQL frames per peer rather than per link
The driver increments wcid->non_aql_packets when a frame goes to the
hardware queue. The completion path decrements the counter again.
For an MLO peer, the hardware reports the completion on the link that it
used for the transmission. This link can differ from the link that the
driver queued the frame on. In that case, the increment and the
decrement go to different link wcids, and the count drifts upwards until
it blocks the station.
Keep the count on the wcid of the primary link, like the other peer-wide
state.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt76.h",
"drivers/net/wireless/mediatek/mt76/tx.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9f28f504650869d41f7b3e98e4bc4547af4d5670",
"status": "affected",
"version": "86c051f2c418abd7eefd8c545a01bdffd220cb95",
"versionType": "git"
},
{
"lessThan": "e0f2ae4a7539454ec50c353571779fcda8c0cfcf",
"status": "affected",
"version": "86c051f2c418abd7eefd8c545a01bdffd220cb95",
"versionType": "git"
},
{
"lessThan": "752770d7a58c821c17909c3ca67f9f14ab146a40",
"status": "affected",
"version": "86c051f2c418abd7eefd8c545a01bdffd220cb95",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt76.h",
"drivers/net/wireless/mediatek/mt76/tx.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"lessThan": "6.11",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.57",
"versionStartIncluding": "6.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.11",
"versionStartIncluding": "6.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3",
"versionStartIncluding": "6.11",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: account non-AQL frames per peer rather than per link\n\nThe driver increments wcid-\u003enon_aql_packets when a frame goes to the\nhardware queue. The completion path decrements the counter again.\n\nFor an MLO peer, the hardware reports the completion on the link that it\nused for the transmission. This link can differ from the link that the\ndriver queued the frame on. In that case, the increment and the\ndecrement go to different link wcids, and the count drifts upwards until\nit blocks the station.\n\nKeep the count on the wcid of the primary link, like the other peer-wide\nstate."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T12:19:26.256Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9f28f504650869d41f7b3e98e4bc4547af4d5670"
},
{
"url": "https://git.kernel.org/stable/c/e0f2ae4a7539454ec50c353571779fcda8c0cfcf"
},
{
"url": "https://git.kernel.org/stable/c/752770d7a58c821c17909c3ca67f9f14ab146a40"
}
],
"title": "wifi: mt76: account non-AQL frames per peer rather than per link",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-98958",
"datePublished": "2026-10-23T12:19:26.256Z",
"dateReserved": "2026-09-25T10:25:14.382Z",
"dateUpdated": "2026-10-23T12:19:26.256Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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