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.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b Patch
- https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1 Patch
- https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4 Patch
- https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0 Patch
- https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a Patch
- https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 2
- StatusUndergoing Analysis → PublishedNVD modified 2026-10-19 19:36
- First seenCVSS 8.8 · linuxNVD modified 2026-10-15 02:19
Affected (CPE criteria) 3
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
References 20
- https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b Patch
- https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1 Patch
- https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4 Patch
- https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0 Patch
- https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a Patch
- https://git.kernel.org/stable/c/fe75fa1ac9a92990f7fc3d34b17808fd933071b2 Patch
- https://access.redhat.com/errata/RHSA-2026:26427
- https://access.redhat.com/errata/RHSA-2026:26428
- https://access.redhat.com/errata/RHSA-2026:26462
- https://access.redhat.com/errata/RHSA-2026:26515
- https://access.redhat.com/errata/RHSA-2026:26563
- https://access.redhat.com/errata/RHSA-2026:27288
- https://access.redhat.com/errata/RHSA-2026:27708
- https://access.redhat.com/errata/RHSA-2026:27731
- https://access.redhat.com/errata/RHSA-2026:27735
- https://access.redhat.com/errata/RHSA-2026:27789
- https://access.redhat.com/security/cve/CVE-2026-46125
- https://bugzilla.redhat.com/show_bug.cgi?id=2482608
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json