wifi: mt76: mt7915: fix ext PHY use-after-free on register error path
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.
CVE-2026-90353
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90353
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "aa55bec92ba7747dd08feff409f8074c5e052e71",
"versionType": "git"
},
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "ad706fcf6255494613b94418e7243d98065dbeaf",
"versionType": "git"
},
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "34058ad122f7524e33df8e38caba4b1d803b025a",
"versionType": "git"
},
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5",
"versionType": "git"
},
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "648f5f03ff50d4bd719106ace0cdf1d8be02cbdd",
"versionType": "git"
},
{
"status": "affected",
"version": "7b8e1ae886e45aed9274048f2836a70b75ecfa40",
"lessThan": "15b960014f24dce5388d4a2e7274e6490cb3c421",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/init.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7915/init.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90353
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #36688 · Revision 1
- Added to Heist Feed
- Publisher date