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Vulnerability record · CVE-2026-43052 · published 1 May 2026

CVE-2026-43052: Linux kernel vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check tdls flag in ieee80211_tdls_oper When NL80211_TDLS_ENABLE_LINK is called, the code only checks if the station exists but not whether it is actually a TDLS station. This allows the operation to proceed for non-TDLS stations, causing unintended side effects like modifying channel context and HT protection before failing. Add a check for sta->sta.tdls early in the ENABLE_LINK case, before any side effects occur, to ensure the operation is only allowed for actual TDLS peers.

7.1 CVSS 3.1 High EPSS 0.17% · top 94.2%
7.1CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
19 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check tdls flag in ieee80211_tdls_oper When NL80211_TDLS_ENABLE_LINK is called, the code only checks if the station exists but not whether it is actually a TDLS station. This allows the operation to proceed for non-TDLS stations, causing unintended side effects like modifying channel context and HT protection before failing. Add a check for sta->sta.tdls early in the ENABLE_LINK case, before any side effects occur, to ensure the operation is only allowed for actual TDLS peers.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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/44839ea7e96b3659a1606f3d5267063135479b7c
https://git.kernel.org/stable/c/6813a8b1b240756dad4375f3e020ce10e4e3871b
https://git.kernel.org/stable/c/7d73872d949c488a1d7c308031d6a9d89b5e0a8b Patch
https://git.kernel.org/stable/c/8148c2fda4ebb17104a573649c9b699208ad10ee Patch
https://git.kernel.org/stable/c/ba5b43db126a5e7378553869e3f7954d9187349f
https://git.kernel.org/stable/c/be81f17151fcb8546a95f35ca8f4231b065985de Patch
https://git.kernel.org/stable/c/e602246235fc2ef06c39b2e9cf147d84d0896b73
https://git.kernel.org/stable/c/e77b2937aaa20264e4bd699d3244bdb50e7e3343 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43052), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.