CVE-2026-98326
Full vulnerability record from the local CVENow database.
Description
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.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-10-06 09:18:24.840000
Last modified
2026-10-19 10:18:34.797000
View original CVE JSON
{
"id": "CVE-2026-98326",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-10-06T09:18:24.840",
"lastModified": "2026-10-19T10:18:34.797",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: mesh: release the channel if start fails\n\nieee80211_join_mesh() acquires a channel context and then calls\nieee80211_start_mesh(), which can fail. In that case, the chanctx\nisn't released then interface removal will attempt to unassign it\nafter it's removed from the driver, hitting:\n\n wlan0: Failed check-sdata-in-driver check, flags: 0x0\n WARNING: net/mac80211/driver-ops.c:366 at drv_unassign_vif_chanctx\n ieee80211_assign_link_chanctx\n __ieee80211_link_release_channel\n ieee80211_link_release_channel\n ieee80211_teardown_sdata\n unregister_netdevice_many_notify\n _cfg80211_unregister_wdev\n ieee80211_remove_interfaces\n ieee80211_unregister_hw\n mac80211_hwsim_del_radio\n hwsim_exit_net\n\nCorrectly release the channel on start failures."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"net/mac80211/cfg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"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",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"net/mac80211/cfg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "3.9",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.9",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.189",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.158",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.112",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.54",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.8",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}