wifi: mac80211: unlist vifs when their netdev is unregistered
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: unlist vifs when their netdev is unregistered mac80211 only removes vifs from the local->interfaces list when an interface is removed via ieee80211_if_remove(), before it unregisters the netdev. However, it's possible for a netdev to be unregistered without going through that: When the netns that holds the wiphy is destroyed, the wiphy is supposed to move to the init_ns, but that can run into allocation failures. Then, mac80211 has an interface listed that doesn't exist, and will eventually hit BUG: failure at net/wireless/core.h:141/wiphy_to_rdev()! ... _cfg80211_unregister_wdev+0x24/0x36a [cfg80211] cfg80211_unregister_wdev+0x15/0x1d [cfg80211] ieee80211_remove_interfaces+0x1ff/0x257 [mac80211] ieee80211_unregister_hw+0x73/0x1d1 [mac80211] mac80211_hwsim_del_radio+0x114/0x166 [mac80211_hwsim] Remove the interface from the list in ->ndo_uninit if it's still around to avoid this.
CVE-2026-98331
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-2026-98331
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": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "a22c02863439993095acd0c3db97fa53cd515f4f",
"versionType": "git"
},
{
"status": "affected",
"version": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "20a56e96a6f7b4dfbd13f8732fd2673409fc7ba0",
"versionType": "git"
},
{
"status": "affected",
"version": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "b735ad1a9aca6080192c1316cf2706e5e1318762",
"versionType": "git"
},
{
"status": "affected",
"version": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "d45bf731ec7085d2cc2c5d179d3b3b6c743d4fb1",
"versionType": "git"
},
{
"status": "affected",
"version": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "821bab0456dfca12acef6df702c8f2477d313227",
"versionType": "git"
},
{
"status": "affected",
"version": "463d018323851a608eef52a9427b0585005c647f",
"lessThan": "eee2efd82867b623982ac51925b5a1812a74c50d",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/iface.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.32"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.32",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.54",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.8",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/iface.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98331
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #38410 · Revision 1
- Added to Heist Feed
- Publisher date