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CVE-2026-46152— wifi: mac80211: drop stray 'static' from fast-RX rx_result

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mac80211中fast-RX的rx_result被错误声明为静态变量，可能导致并发调用时结果被覆盖。

CVSS 8.8 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1004

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 3468e1e0c639032a603450f0830ccabfa76f5806< 03584528bfffb195e384698af9148b94e42e3f14 affected
3468e1e0c639032a603450f0830ccabfa76f5806< 1739fc31b4de06c5c78ce0741182770fb079091e affected
3468e1e0c639032a603450f0830ccabfa76f5806< e131562d6f2b958148c35c98831b007f47f0e3d3 affected
3468e1e0c639032a603450f0830ccabfa76f5806< 3ef44f96ccc3e06e059dec57842e366f0c4b1893 affected
3468e1e0c639032a603450f0830ccabfa76f5806< 7a5b81e0c87a075afd572f659d8eb68c9c4cd2ba affected
6.4 affected
< 6.4 unaffected
6.6.140≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-46152

Vulnerability Information
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Vulnerability Title
wifi: mac80211: drop stray 'static' from fast-RX rx_result
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: drop stray 'static' from fast-RX rx_result ieee80211_invoke_fast_rx() is documented as safe for parallel RX, but its per-invocation rx_result is declared static. Concurrent callers then share one instance and can overwrite each other's result between ieee80211_rx_mesh_data() and the switch on res. That can make a packet that was queued or consumed by ieee80211_rx_mesh_data() fall through into ieee80211_rx_8023(), or make a packet that should continue return as queued. Make res an automatic variable so each invocation keeps its own result.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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mac80211中fast-RX的rx_result被错误声明为静态变量，可能导致并发调用时结果被覆盖。
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 3468e1e0c639032a603450f0830ccabfa76f5806 ~ 03584528bfffb195e384698af9148b94e42e3f14 -
Linux Linux 6.4 -

II. Public POCs for CVE-2026-46152

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III. Intelligence Information for CVE-2026-46152

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Patches & Fixes for CVE-2026-46152 (5)

Same Patch Batch · Linux · 2026-05-28 · 135 CVEs total

CVE-2026-46135 9.8 CRITICAL nvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-46195 9.8 CRITICAL smb: client: validate dacloffset before building DACL pointers
CVE-2026-46137 9.8 CRITICAL mptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-46115 9.8 CRITICAL block: add pgmap check to biovec_phys_mergeable
CVE-2026-46155 9.1 CRITICAL smb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-46119 9.1 CRITICAL libceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-46185 9.1 CRITICAL smb/client: fix out-of-bounds read in symlink_data()
CVE-2026-46125 8.8 HIGH wifi: mac80211: remove station if connection prep fails
CVE-2026-46198 8.8 HIGH batman-adv: fix integer overflow on buff_pos
CVE-2026-46113 8.8 HIGH KVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-46212 8.8 HIGH batman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-46238 8.8 HIGH batman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-46166 8.8 HIGH wifi: mac80211: use safe list iteration in radar detect work
CVE-2026-46174 8.8 HIGH x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-46138 8.1 HIGH Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-46232 8.1 HIGH HID: playstation: Clamp num_touch_reports
CVE-2026-46215 7.8 HIGH drm: Set old handle to NULL before prime swap in change_handle
CVE-2026-46205 7.8 HIGH staging: media: atomisp: Disallow all private IOCTLs
CVE-2026-46227 7.8 HIGH sctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL
CVE-2026-46129 7.8 HIGH btrfs: fix double free in create_space_info() error path

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46152

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