CVE-2026-90353wifi: mt76: mt7915: fix ext PHY use-after-free on register error path
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: mt7915: fix ext PHY use-after-free on register error path After mt7915_register_ext_phy() succeeded, a failure of the main PHY mt7915_init_debugfs() or mt7915_coredump_register() unwound through free_phy2, which called ieee80211_free_hw() on the ext PHY hw while it was still registered with mac80211, since mt76_unregister_device() only unregisters the main hw. Unregister the ext PHY (thermal + phy + hw) first and skip the redundant free.
- CVSS
- 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- 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 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before aa55bec92ba7747dd08feff409f8074c5e052e71; from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before ad706fcf6255494613b94418e7243d98065dbeaf; from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before 34058ad122f7524e33df8e38caba4b1d803b025a; from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5; from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd; from 7b8e1ae886e45aed9274048f2836a70b75ecfa40 before 15b960014f24dce5388d4a2e7274e6490cb3c421 | CNA record |
References
- https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71
- https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf
- https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a
- https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5
- https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd
- https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421
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.