wifi: mac80211: mesh: release the channel if start fails (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/f0afcec2129c166e61821d6ae097061155f01b12
- https://git.kernel.org/stable/c/b51f5a310bd6888b90bb9546a8081215dcfe6fbe
- https://git.kernel.org/stable/c/632f7acfe6dac1278a9314eaaab14fada400ddaf
- https://git.kernel.org/stable/c/41bee71112db53651ba9a9030de1b843255a4a7f
- https://git.kernel.org/stable/c/4a4e3fa77ea36d3419d806fb5883ef425a605a5d
- https://git.kernel.org/stable/c/ae97fff6495a8764bc0ef281cfe5444f701e527f
European references
- ENISA EUVD · EUVD-2026-93311
- GCVE · GCVE-0-2026-98326
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1374 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < f0afcec2129c166e61821d6ae097061155f01b12 ; affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < b51f5a310bd6888b90bb9546a8081215dcfe6fbe ; affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < 632f7acfe6dac1278a9314eaaab14fada400ddaf ; affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < 41bee71112db53651ba9a9030de1b843255a4a7f ; affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < 4a4e3fa77ea36d3419d806fb5883ef425a605a5d ; affected 2b5e19677592c167d012c2d129407f39d2bdeb8d < ae97fff6495a8764bc0ef281cfe5444f701e527f |
| Linux · Linux | affected 3.9 ; unaffected 0 < 3.9 ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.12.112 ≤ 6.12.* ; unaffected 6.18.54 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |