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CVE-2026-46069— wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()

AI Predicted 7.8 Difficulty: Hard EPSS 0.02% · P7

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinux4636187da60b6e33526050235c610409d9cc00e8< 11869ce402d95519d49b25a2a97741f68d69d103affected
4636187da60b6e33526050235c610409d9cc00e8< 63fe3389b3e092d6c0eeea9fc0318e7918b16618affected
4636187da60b6e33526050235c610409d9cc00e8< 4e179a60a60c0a5aea245e8e67768343c0f070b8affected
4636187da60b6e33526050235c610409d9cc00e8< 030abbae49cf9fd1fba7aa08e15ec81efbeb78cfaffected
4636187da60b6e33526050235c610409d9cc00e8< ae5e95d4157481693be2317e3ffcd84e36010cbbaffected
4.0affected
< 4.0unaffected
6.6.140≤ 6.6.*unaffected
… +4 more rows
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I. Basic Information for CVE-2026-46069

Vulnerability Information
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Vulnerability Title
wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() The mwifiex_adapter_cleanup() function uses timer_delete() (non-synchronous) for the wakeup_timer before the adapter structure is freed. This is incorrect because timer_delete() does not wait for any running timer callback to complete. If the wakeup_timer callback (wakeup_timer_fn) is executing when mwifiex_adapter_cleanup() is called, the callback will continue to access adapter fields (adapter->hw_status, adapter->if_ops.card_reset, etc.) which may be freed by mwifiex_free_adapter() called later in the mwifiex_remove_card() path. Use timer_delete_sync() instead to ensure any running timer callback has completed before returning.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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mwifiex中mwifiex_adapter_cleanup函数使用非同步定时器删除可能导致释放后重用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 4636187da60b6e33526050235c610409d9cc00e8 ~ 11869ce402d95519d49b25a2a97741f68d69d103 -
LinuxLinux 4.0 -

II. Public POCs for CVE-2026-46069

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III. Intelligence Information for CVE-2026-46069

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Patches & Fixes for CVE-2026-46069 (5)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-460367.8 HIGHvfio/cdx: Serialize VFIO_DEVICE_SET_IRQS with a per-device mutex
CVE-2026-458617.8 HIGHgfs2: Fix slab-use-after-free in qd_put
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-459297.8 HIGHovpn: fix possible use-after-free in ovpn_net_xmit
CVE-2026-459847.8 HIGHgfs2: Fix use-after-free in iomap inline data write path
CVE-2026-459337.8 HIGHbpf: Preserve id of register in sync_linked_regs()
CVE-2026-460587.8 HIGHmedia: amphion: Fix race between m2m job_abort and device_run
CVE-2026-459317.8 HIGHaccel/amdxdna: Hold mm structure across iommu_sva_unbind_device()

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46069

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