CVE-2026-98326
wifi: mac80211: mesh: release the channel if start fails
No known exploitation. EPSS puts it in the 7th percentile. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- LinuxAffected: ≥ 2b5e19677592c167d012c2d129407f39d2bdeb8d, < f0afcec2129c166e61821d6ae097061155f01b12Upgrade to: f0afcec2129c166e61821d6ae097061155f01b12Affected: ≥ 2b5e19677592c167d012c2d129407f39d2bdeb8d, < b51f5a310bd6888b90bb9546a8081215dcfe6fbeUpgrade to: b51f5a310bd6888b90bb9546a8081215dcfe6fbeAffected: ≥ 2b5e19677592c167d012c2d129407f39d2bdeb8d, < 632f7acfe6dac1278a9314eaaab14fada400ddafUpgrade to: 632f7acfe6dac1278a9314eaaab14fada400ddafAffected: ≥ 2b5e19677592c167d012c2d129407f39d2bdeb8d, < 41bee71112db53651ba9a9030de1b843255a4a7fUpgrade to: 41bee71112db53651ba9a9030de1b843255a4a7f + 2 more branchesStated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.2% chance of exploitation activity in the next 30 days, which ranks it in the 7th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
2 events over 0 days, from the signal feeds we watch.
- Publishedrecord updated
Affected products
Sources
References in the record
- git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12
- git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe
- git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf
And 3 more references. See all after sign-in
In the news
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