wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP

Summary

CVECVE-2026-90376
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:36 UTC
Updated2026-09-17 17:17:36 UTC
DescriptionIn 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.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d6f6b3a65660d183ef33f5a6582fd3b47174fe5a 5183b9f092fc0041618f38f895bd0ad860c26ca9 git Not specified
CNA Linux Linux affected 85cd5534a3f2ec93e7d88713a77df5b4255520df 0a951ff6704db7b46c3f6d03b77e6053122be8ab git Not specified
CNA Linux Linux affected 85cd5534a3f2ec93e7d88713a77df5b4255520df ce35ecffc96e6d097d27b6fe30677a2cfe2e0461 git Not specified
CNA Linux Linux affected 6.18.33 6.18.52 semver Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0a951ff6704db7b46c3f6d03b77e6053122be8ab 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ce35ecffc96e6d097d27b6fe30677a2cfe2e0461 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5183b9f092fc0041618f38f895bd0ad860c26ca9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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