CVE-2026-90353
wifi: mt76: mt7915: fix ext PHY use-after-free on register error path
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
7b8e1ae886e45aed9274048f2836a70b75ecfa40 < aa55bec92ba7747dd08feff409f8074c5e052e71 7b8e1ae886e45aed9274048f2836a70b75ecfa40 < ad706fcf6255494613b94418e7243d98065dbeaf 7b8e1ae886e45aed9274048f2836a70b75ecfa40 < 34058ad122f7524e33df8e38caba4b1d803b025a 7b8e1ae886e45aed9274048f2836a70b75ecfa40 < a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5 7b8e1ae886e45aed9274048f2836a70b75ecfa40 < 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd 7b8e1ae886e45aed9274048f2836a70b75ecfa40 < 15b960014f24dce5388d4a2e7274e6490cb3c421
Linux / Linux
5.19
References
git.kernel.org: https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71 git.kernel.org: https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf git.kernel.org: https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a git.kernel.org: https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5 git.kernel.org: https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd git.kernel.org: https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421