CVE-2026-46069

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/030abbae49cf9fd1fba7aa08e15ec81efbeb78cf	Patch
https://git.kernel.org/stable/c/11869ce402d95519d49b25a2a97741f68d69d103	Patch
https://git.kernel.org/stable/c/1958a92599b2653d730ccb6f5685fc3fbed21812	Patch
https://git.kernel.org/stable/c/4e179a60a60c0a5aea245e8e67768343c0f070b8	Patch
https://git.kernel.org/stable/c/63fe3389b3e092d6c0eeea9fc0318e7918b16618	Patch
https://git.kernel.org/stable/c/a88f5391dc68f78cae5eb6a8cd341cafee795d3d	Patch
https://git.kernel.org/stable/c/ae5e95d4157481693be2317e3ffcd84e36010cbb	Patch
https://git.kernel.org/stable/c/c3508895450cca4aeaf5dbadbb5e582363005264	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-06-24 17:03

NVD link : CVE-2026-46069

Mitre link : CVE-2026-46069

CVE.ORG link : CVE-2026-46069

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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