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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < aa55bec92ba7747dd08feff409f8074c5e052e71
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < ad706fcf6255494613b94418e7243d98065dbeaf
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < 34058ad122f7524e33df8e38caba4b1d803b025a
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < 648f5f03ff50d4bd719106ace0cdf1d8be02cbdd
7b8e1ae886e45aed9274048f2836a70b75ecfa40 affected < 15b960014f24dce5388d4a2e7274e6490cb3c421
Linux Linux affected
Version Status Constraints
5.19 affected —
0 unaffected < 5.19
6.1.188 unaffected ≤ 6.1.*
6.6.157 unaffected ≤ 6.6.*
6.12.110 unaffected ≤ 6.12.*
6.18.52 unaffected ≤ 6.18.*
7.2.6 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

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Fixes

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References
Link Providers
https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421 cve-icon cve-icon
https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a cve-icon cve-icon
https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd cve-icon cve-icon
https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5 cve-icon cve-icon
https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71 cve-icon cve-icon
https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf cve-icon cve-icon
History

Thu, 17 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Description 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.
Title wifi: mt76: mt7915: fix ext PHY use-after-free on register error path
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-17T16:09:00.217Z

Reserved: 2026-09-11T19:38:34.805Z

Link: CVE-2026-90353

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-17T17:17:34.140

Modified: 2026-09-17T17:17:34.140

Link: CVE-2026-90353

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.