wifi: mac80211: mesh: release the channel if start fails
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: mesh: release the channel if start fails ieee80211_join_mesh() acquires a channel context and then calls ieee80211_start_mesh(), which can fail. In that case, the chanctx isn't released then interface removal will attempt to unassign it after it's removed from the driver, hitting: wlan0: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx ieee80211_assign_link_chanctx __ieee80211_link_release_channel ieee80211_link_release_channel ieee80211_teardown_sdata unregister_netdevice_many_notify _cfg80211_unregister_wdev ieee80211_remove_interfaces ieee80211_unregister_hw mac80211_hwsim_del_radio hwsim_exit_net Correctly release the channel on start failures.
CVE-2026-98326
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-2026-98326
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": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "f0afcec2129c166e61821d6ae097061155f01b12",
"versionType": "git"
},
{
"status": "affected",
"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "b51f5a310bd6888b90bb9546a8081215dcfe6fbe",
"versionType": "git"
},
{
"status": "affected",
"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "632f7acfe6dac1278a9314eaaab14fada400ddaf",
"versionType": "git"
},
{
"status": "affected",
"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "41bee71112db53651ba9a9030de1b843255a4a7f",
"versionType": "git"
},
{
"status": "affected",
"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "4a4e3fa77ea36d3419d806fb5883ef425a605a5d",
"versionType": "git"
},
{
"status": "affected",
"version": "2b5e19677592c167d012c2d129407f39d2bdeb8d",
"lessThan": "ae97fff6495a8764bc0ef281cfe5444f701e527f",
"versionType": "git"
}
],
"programFiles": [
"net/mac80211/cfg.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.9",
"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/cfg.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98326
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38405 · Revision 1
- Added to Heist Feed
- Publisher date