Description
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 products
linux: linux kernel
References10
- git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b Patch
- git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1 Patch
- git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4 Patch
- git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0 Patch
- git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a Patch
- git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2 Patch
- access.redhat.com/errata/RHSA-2026:26427
- access.redhat.com/errata/RHSA-2026:26428
- access.redhat.com/errata/RHSA-2026:26462
- access.redhat.com/errata/RHSA-2026:26515
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 23 · as of 15 November 2026
- CWE
- CWE-416CWE-825
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