CVE-2026-90356
wifi: mt76: mt7996: free vif links after clearing wcid entries on full reset
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: free vif links after clearing wcid entries on full reset mt7996_mac_reset_vif_iter() queues non-default vif links for kfree_rcu while dev->wcid[] still holds pointers to the wcid embedded in each freed link; mt76_reset_device() then dereferences those entries and runs mt76_wcid_cleanup() on them. If a grace period elapses in between, the cleanup operates on freed memory. Run mt76_reset_device() first, so the wcid entries are cleaned up and cleared while the links are still valid.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
ace5d3b6b49e8391beb4d7244348ba7da5298878 < 2b10eb3636d0c4cb6b763e045ec1294dbd70f5ad ace5d3b6b49e8391beb4d7244348ba7da5298878 < 8826d7a5e2dd727aa96456ccd58b33d2b080e935 ace5d3b6b49e8391beb4d7244348ba7da5298878 < 7e4208e9f6a876c2b7d28fdb6b86dff3b05db2f7
Linux / Linux
6.18