CVE-2026-90376
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP Problem: MCU command timeout while the firmware state is normal, and the firmware keeps showing the error log "ERROR!! NO PAUSE...". Root cause: If the MLD_ID field in the TXD is neither the primary link id nor the secondary link id, it may lead to a firmware busy loop when the third link is in power saving mode. Remap frames directed to a third link to the primary link wcid. Since TX status events and txfree completions carry the wcid the firmware saw, use the remapped wcid for packet id tracking and non-AQL packet accounting as well, while the frame keeps its original link context for addressing, band and OMAC selection.
Affected versions
Linux kernel versions
6.18.33,
6.19
and later are affected. Fixed in
6.18.52,
7.2.6,
7.3-rc1
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-90376?
CVE-2026-90376 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18.33 onward and has been patched in 6.18.52, 7.2.6 and 7.3-rc1. CVE-2026-90376 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-90376?
Yes. CVE-2026-90376 has been patched. Fixed versions include 6.18.52, 7.2.6 and 7.3-rc1. If you are running Linux kernel 6.18.33 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-90376 actively exploited?
No. CVE-2026-90376 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.