wifi: mac80211: mesh: release the channel if start fails
Summary
| CVE | CVE-2026-98326 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-06 09:18:24 UTC |
| Updated | 2026-10-06 09:18:24 UTC |
| 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. |
Risk And Classification
EPSS: 0.001800000 probability, percentile 0.069220000 (date 2026-10-06)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d f0afcec2129c166e61821d6ae097061155f01b12 git | Not specified |
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d b51f5a310bd6888b90bb9546a8081215dcfe6fbe git | Not specified |
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 632f7acfe6dac1278a9314eaaab14fada400ddaf git | Not specified |
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 41bee71112db53651ba9a9030de1b843255a4a7f git | Not specified |
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d 4a4e3fa77ea36d3419d806fb5883ef425a605a5d git | Not specified |
| CNA | Linux | Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d ae97fff6495a8764bc0ef281cfe5444f701e527f git | Not specified |
| CNA | Linux | Linux | affected 3.9 | Not specified |
| CNA | Linux | Linux | unaffected 3.9 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.189 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.158 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.112 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.54 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.8 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc4 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.