CVE-2026-90351

wifi: mt76: mt7996: do not attach hif2 WED when the main WED attach failed

N/A
Published: September 17, 2026 at 04:08 PM UTC
Updated: October 21, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: do not attach hif2 WED when the main WED attach failed If the WED attach for the primary PCIe function fails, the probe path still attached wed_hif2 for the secondary function, leaving the device in an inconsistent half-WED configuration that crashes later. The hif2 call also re-enabled hwrro_mode, which the failed primary attach had just turned off. Skip the hif2 WED setup when the primary WED device is not active.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.883eafc9251d6d30574b629ac637c56d168fcbdd9
Vendor states this is fixed in 76144da3c6184c7850631ad79d0600ac8bf7649a (fixed)
Vendor states this is fixed in 7c1924332e986019c6bcddf55c843361cccac73f (fixed)
Vendor states this is fixed in d566387df8306257d2f703a0d99fd9896400317e (fixed)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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