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CVE-2026-90353NVD
Vulnerability Summary
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.
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 v3.1 Base Metrics — Score 7.0 (HIGH)
Attack VectorLocal
Attack ComplexityHigh
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
Affected & Patched Versions
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < aa55bec92ba7747dd08feff409f8074c5e052e71
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < ad706fcf6255494613b94418e7243d98065dbeaf
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < 34058ad122f7524e33df8e38caba4b1d803b025a
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd
- Linux Linux >= 7b8e1ae886e45aed9274048f2836a70b75ecfa40 and < 15b960014f24dce5388d4a2e7274e6490cb3c421
- Linux Linux >= 5.19
- Linux Linux aa55bec92ba7747dd08feff409f8074c5e052e71
- Linux Linux ad706fcf6255494613b94418e7243d98065dbeaf
- Linux Linux 34058ad122f7524e33df8e38caba4b1d803b025a
- Linux Linux a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5
- Linux Linux 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd
- Linux Linux 15b960014f24dce5388d4a2e7274e6490cb3c421
External 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