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CVE-2026-99060— wifi: mt76: mt7603: initialize global station WCID

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.

在 Linux 内核中，以下漏洞已得到修复： wifi: mt76: mt7603：初始化全局站点的 WCID mt7603 驱动程序使用一个私有全局站点 WCID（无线客户端标识符）来处理既未关联到特定站点也未关联到虚拟接口（vif）的数据帧，其中包括通过监控接口注入的帧。与由初始化的核心全局 WCID 不同，该 WCID 在发布前从未调用进行初始化。自提交 0335c034e726（"wifi: mt76: 修复与检查发送队列填充状态相关的竞态条件”）以来，会将所有此类帧排入该 WCID 的或队列，

AI Predicted 5.5 Difficulty: Moderate EPSS 0.17% · P6 Updated Oct 23, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 13

Vendor	Product	Version Range	Status
Linux	Linux	`d2defcddfe90b3be0cfccc2482495ab1fb759586< 99b8bd6323e6fc69615af828522878b7acb77bff`	affected
		`0335c034e7265d36d956e806f33202c94a8a9860< e454ec553996f21085657c96c8a605e2d89a81a6`	affected
		`0335c034e7265d36d956e806f33202c94a8a9860< dd117d17e8aa2e89f857fb708e5b770709fb81cb`	affected
		`0335c034e7265d36d956e806f33202c94a8a9860< 19d6fa087dcf242223645828b8282d4040bad168`	affected
		`0335c034e7265d36d956e806f33202c94a8a9860< 456de496b53ae73e6e3020fec815dbdc88aa7c07`	affected
		`6.6.48< 6.6.160`	affected
		`6.7`	affected
		`< 6.7`	unaffected
… +5 more rows

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Vulnerability Information

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Vulnerability Title

wifi: mt76: mt7603: initialize global station WCID

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7603: initialize global station WCID mt7603 uses a driver-private global station WCID for frames that have neither a station nor a vif, including frames injected through a monitor interface. Unlike the core global WCID initialized by mt76_register_device(), this WCID is published without ever being passed to mt76_wcid_init(). Since commit 0335c034e726 ("wifi: mt76: fix race condition related to checking tx queue fill status"), mt76_tx() queues every such frame on the WCID's tx_pending or tx_offchannel queue and links its tx_list. The first injected frame therefore reaches __skb_queue_tail() with an uninitialized sk_buff_head and dereferences a NULL prev pointer. Initialize the WCID before publishing it. The fix was tested on an MT7603 PCIe device. Three wildcard probe requests were injected through a monitor interface. The hardware queue head and tail advanced from 0 to 3 and a second radio captured the third request over the air. No oops or reset occurred. After restoring AP mode, a 150 MB transfer also completed without a reset.

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

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Linux	Linux	d2defcddfe90b3be0cfccc2482495ab1fb759586 ~ 99b8bd6323e6fc69615af828522878b7acb77bff	-
Linux	Linux	6.7	-

II. Public POCs for CVE-2026-99060

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III. Intelligence Information for CVE-2026-99060

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Patches & Fixes for CVE-2026-99060 (4)

https://www.cve.org/CVERecord?id=CVE-2026-99060

Same Patch Batch · Linux · 2026-10-23 · 217 CVEs total

CVE-2026-98959	9.8 CRITICAL	btrfs: fix xattr replace when multiple xattrs are packed in the same item
CVE-2026-99078	9.8 CRITICAL	net/mlx5e: Prevent stale XSK buffer release on MPWQE refill retry
CVE-2026-99079	9.8 CRITICAL	net/mlx5e: Prevent stale XSK buffer release on refill retry
CVE-2026-98988	8.8 HIGH	namespace: keep covered mounts covered in OPEN_TREE_NAMESPACE
CVE-2026-99083	8.8 HIGH	ksmbd: fix heap out-of-bounds write in krb5_authenticate()
CVE-2026-99082	8.8 HIGH	KVM: x86: Use active memslots for the per-vCPU MMIO cache
CVE-2026-98981	8.8 HIGH	namespace: unhash a dentry before detaching the mounts on it
CVE-2026-98980	8.8 HIGH	namei: don't reveal overmounted entries in refwalk
CVE-2026-98870	8.8 HIGH	ksmbd: remove stale channels from all sessions on teardown
CVE-2026-98978	8.4 HIGH	namespace: never expire a locked mount
CVE-2026-99042	8.4 HIGH	io_uring/net: populate CONNECT filter fields for 24-byte sockaddr_in6
CVE-2026-98968	8.1 HIGH	amt: send the relay's General Query directly from the receive path
CVE-2026-99064	8.1 HIGH	cipso: adjust cached option offsets when removing CIPSO
CVE-2026-99014	7.8 HIGH	Bluetooth: hci_sync: Fix command skb lifetime during scan setup
CVE-2026-98999	7.8 HIGH	drm/xe: Fix stale pinned_link entry when fb-pin performs the final unpin
CVE-2026-99016	7.8 HIGH	riscv: futex: untag the user pointer before the atomic access
CVE-2026-99018	7.8 HIGH	riscv: entry: gate shadow call stack reload on sstatus.SPP, not tp
CVE-2026-99051	7.8 HIGH	fsverity: RCU-delay the freeing of struct fsverity_info
CVE-2026-99054	7.8 HIGH	tipc: destroy topsrv workqueues before closing connections
CVE-2026-99053	7.8 HIGH	tipc: hold a reference to nodes found by link name

Showing top 20 of 217 CVEs. View all on vendor page → →

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