CVE-2026-90376

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd6f6b3a65660d183ef33f5a6582fd3b47174fe5a < 5183b9f092fc0041618f38f895bd0ad860c26ca9affected
LinuxLinux85cd5534a3f2ec93e7d88713a77df5b4255520df < 0a951ff6704db7b46c3f6d03b77e6053122be8abaffected
LinuxLinux85cd5534a3f2ec93e7d88713a77df5b4255520df < ce35ecffc96e6d097d27b6fe30677a2cfe2e0461affected
LinuxLinux6.18.33 < 6.18.52affected
LinuxLinux6.19affected
LinuxLinux0 < 6.19unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References