CVE-2026-98958
wifi: mt76: account non-AQL frames per peer rather than per link
Description
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.
Affected products and packages
CNA (CVE.org)
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 … < 9f28f504650869d41f7b3e98e4bc4547af4d5670 affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 … < e0f2ae4a7539454ec50c353571779fcda8c0cfcf affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 … < 752770d7a58c821c17909c3ca67f9f14ab146a40 default: unaffected |
| Linux | Linux | affected: 6.11 unaffected: 0 … < 6.11 unaffected: 6.18.57 … <= 6.18.* unaffected: 7.2.11 … <= 7.2.* unaffected: 7.3 … <= * default: affected |
Open-source packages (GitHub Advisory / OSV)
wifi: mt76: account non-AQL frames per peer rather than per link
| Ecosystem | Package | Affected versions | Fixed in |
|---|---|---|---|
| >= 86c051f2c418abd7eefd8c545a01bdffd220cb95, < 9f28f504650869d41f7b3e98e4bc4547af4d5670; < e0f2ae4a7539454ec50c353571779fcda8c0cfcf; < 752770d7a58c821c17909c3ca67f9f14ab146a40 | 9f28f504650869d41f7b3e98e4bc4547af4d5670, e0f2ae4a7539454ec50c353571779fcda8c0cfcf, 752770d7a58c821c17909c3ca67f9f14ab146a40 | ||
| Linux | Kernel | >= 6.11.0, < 6.18.57; >= 6.19.0, < 7.2.11 | 6.18.57, 7.2.11 |
Linux distribution status
References (6)
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git OSV
- https://git.kernel.org/stable/c/752770d7a58c821c17909c3ca67f9f14ab146a40 NVD, CNA, OSV
- https://git.kernel.org/stable/c/9f28f504650869d41f7b3e98e4bc4547af4d5670 NVD, CNA, OSV
- https://git.kernel.org/stable/c/e0f2ae4a7539454ec50c353571779fcda8c0cfcf NVD, CNA, OSV
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98958.json OSV
- https://nvd.nist.gov/vuln/detail/CVE-2026-98958 OSV