Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before 18fed0a209500bfea5c4c08609ec93855e4e500b; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before fe75fa1ac9a92990f7fc3d34b17808fd933071b2; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before afcbaed89cdc1a001b43270cbf5394bb4804270a; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before 9e28654f79f443bca9b29ff3ae7cf18abfba58a0; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before 1c2b72ea89882aeb948340498391e69c58d466f1; affected 81151ce462e533551f3284bfdb8e0f461c9220e6 before 283fc9e44ff5b5ac967439b4951b80bd4299f4e4 |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 6.1.176 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.88 through 6.12.*; unaffected 6.18.30 through 6.18.*; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b
- https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2
- https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a
- https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0
- https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1
- https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4
ADP enrichment
A flaw was found in the Linux kernel's mac80211 Wi-Fi subsystem. When Multi-Link Operation (MLO) connection preparation fails, the system may not correctly remove the associated station. This can lead to a use-after-free or double-free vulnerability in the debugfs component, potentially causing system instability or unexpected behavior.
- https://access.redhat.com/security/cve/CVE-2026-46125
- https://bugzilla.redhat.com/show_bug.cgi?id=2482608
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json
- https://access.redhat.com/errata/RHSA-2026:27731
- https://access.redhat.com/errata/RHSA-2026:27288
- https://access.redhat.com/errata/RHSA-2026:26515
- https://access.redhat.com/errata/RHSA-2026:27735
- https://access.redhat.com/errata/RHSA-2026:27708
- https://access.redhat.com/errata/RHSA-2026:27789
- https://access.redhat.com/errata/RHSA-2026:26427
- https://access.redhat.com/errata/RHSA-2026:26563
- https://access.redhat.com/errata/RHSA-2026:26428
- https://access.redhat.com/errata/RHSA-2026:26462
No English description supplied.
No English description supplied.
No references supplied.