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CVE-2026-43052— wifi: mac80211: check tdls flag in ieee80211_tdls_oper

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在ieee80211_tdls_oper函数中未检查TDLS标志，可能导致非TDLS站点执行操作，造成修改信道环境和HT保护等意外副作用。

AI Predicted 5.3 Difficulty: Hard EPSS 0.18% · P7

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 941c93cd039852b7ab02c74f4698c99d82bd6cfe< e602246235fc2ef06c39b2e9cf147d84d0896b73 affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< 6813a8b1b240756dad4375f3e020ce10e4e3871b affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< 44839ea7e96b3659a1606f3d5267063135479b7c affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< ba5b43db126a5e7378553869e3f7954d9187349f affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< 8148c2fda4ebb17104a573649c9b699208ad10ee affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< be81f17151fcb8546a95f35ca8f4231b065985de affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< e77b2937aaa20264e4bd699d3244bdb50e7e3343 affected
941c93cd039852b7ab02c74f4698c99d82bd6cfe< 7d73872d949c488a1d7c308031d6a9d89b5e0a8b affected
… +10 more rows
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I. Basic Information for CVE-2026-43052

Vulnerability Information
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Vulnerability Title
wifi: mac80211: check tdls flag in ieee80211_tdls_oper
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在ieee80211_tdls_oper函数中未检查TDLS标志，可能导致非TDLS站点执行操作，造成修改信道环境和HT保护等意外副作用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 941c93cd039852b7ab02c74f4698c99d82bd6cfe ~ e602246235fc2ef06c39b2e9cf147d84d0896b73 -
Linux Linux 3.2 -

II. Public POCs for CVE-2026-43052

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III. Intelligence Information for CVE-2026-43052

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Patches & Fixes for CVE-2026-43052 (8)

Same Patch Batch · Linux · 2026-05-01 · 146 CVEs total

CVE-2026-43011 9.8 CRITICAL net/x25: Fix potential double free of skb
CVE-2026-31705 9.8 CRITICAL ksmbd: fix out-of-bounds write in smb2_get_ea() EA alignment
CVE-2026-43037 9.8 CRITICAL ip6_tunnel: clear skb2->cb[] in ip4ip6_err()
CVE-2026-43038 9.8 CRITICAL ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach()
CVE-2026-43039 9.8 CRITICAL net: ti: icssg-prueth: fix missing data copy and wrong recycle in ZC RX dispatch
CVE-2026-31718 9.8 CRITICAL ksmbd: fix use-after-free in __ksmbd_close_fd() via durable scavenger
CVE-2026-31735 8.8 HIGH iommupt: Fix short gather if the unmap goes into a large mapping
CVE-2026-43018 8.8 HIGH Bluetooth: hci_event: fix potential UAF in hci_le_remote_conn_param_req_evt
CVE-2026-31773 8.8 HIGH Bluetooth: SMP: derive legacy responder STK authentication from MITM state
CVE-2026-31739 8.8 HIGH crypto: tegra - Add missing CRYPTO_ALG_ASYNC
CVE-2026-31717 8.8 HIGH ksmbd: validate owner of durable handle on reconnect
CVE-2026-31709 8.8 HIGH smb: client: validate the whole DACL before rewriting it in cifsacl
CVE-2026-43048 8.8 HIGH HID: core: Mitigate potential OOB by removing bogus memset()
CVE-2026-31706 8.8 HIGH ksmbd: validate num_aces and harden ACE walk in smb_inherit_dacl()
CVE-2026-31712 8.3 HIGH ksmbd: require minimum ACE size in smb_check_perm_dacl()
CVE-2026-31708 8.1 HIGH smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path
CVE-2026-31779 8.1 HIGH wifi: iwlwifi: mvm: fix potential out-of-bounds read in iwl_mvm_nd_match_info_handler()
CVE-2026-43051 8.1 HIGH HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq
CVE-2026-31771 8.1 HIGH Bluetooth: hci_event: move wake reason storage into validated event handlers
CVE-2026-31772 7.8 HIGH Bluetooth: hci_sync: fix stack buffer overflow in hci_le_big_create_sync

Showing top 20 of 146 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43052

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