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Vulnerability record · CVE-2026-46125 · published 28 May 2026

CVE-2026-46125: Linux kernel use after free vulnerability

Linux · Linux Kernel

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.

8.8 CVSS 3.1 High EPSS 0.44% · top 64.1% CWE-416 · Use after freeCWE-825 · CWE-825 Undergoing Analysis
8.8CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
19References
15 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46125.json

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Source: NIST National Vulnerability Database (record CVE-2026-46125), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.