CVE-2026-90368 PUBLISHED

wifi: mt76: mt7915: unwind state on add_interface failure

Assigner: Linux
Reserved: 11.09.2026 Published: 17.09.2026 Updated: 17.09.2026

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7915: unwind state on add_interface failure

When mt76_wcid_alloc() fails, mt7915_add_interface() returned without clearing the vif_mask/omac_mask bits it had already set, without removing the firmware dev info added earlier, and without clearing a monitor_vif pointer to the vif mac80211 is about to free. mac80211 does not call remove_interface() for a failed add, so the indices and firmware dev entry leaked permanently and testmode could dereference the stale monitor_vif. Add a proper error unwind.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from b619e01380eedf24e8d26a367e94e0ccaeb0c3dd to 218fdf0fcb796b8d281dbdd4a6144c5a8fc7fd0f (excl.)
  • affected from b619e01380eedf24e8d26a367e94e0ccaeb0c3dd to 507eddb8175a67df5086354b92d6a4fd7f6f1f96 (excl.)
  • affected from b619e01380eedf24e8d26a367e94e0ccaeb0c3dd to 71bf9de2ab3fb2c54bedb0b4c9b468d2e1d55280 (excl.)
  • affected from b619e01380eedf24e8d26a367e94e0ccaeb0c3dd to 2fb6480c52f611338e1b0abe5e6219be1fc9ab75 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.19 is affected
  • unaffected from 0 to 5.19 (excl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References