CVE-2026-90356wifi: mt76: mt7996: free vif links after clearing wcid entries on full reset
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ace5d3b6b49e8391beb4d7244348ba7da5298878 before 2b10eb3636d0c4cb6b763e045ec1294dbd70f5ad; from ace5d3b6b49e8391beb4d7244348ba7da5298878 before 8826d7a5e2dd727aa96456ccd58b33d2b080e935; from ace5d3b6b49e8391beb4d7244348ba7da5298878 before 7e4208e9f6a876c2b7d28fdb6b86dff3b05db2f7 | CNA record |
References
- https://git.kernel.org/stable/c/2b10eb3636d0c4cb6b763e045ec1294dbd70f5ad
- https://git.kernel.org/stable/c/8826d7a5e2dd727aa96456ccd58b33d2b080e935
- https://git.kernel.org/stable/c/7e4208e9f6a876c2b7d28fdb6b86dff3b05db2f7
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.