wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-46069
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:28 UTC
Updated2026-06-24 17:03:45 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001770000 probability, percentile 0.073210000 (date 2026-06-24)

Problem Types: CWE-416

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 c3508895450cca4aeaf5dbadbb5e582363005264 git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 1958a92599b2653d730ccb6f5685fc3fbed21812 git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 a88f5391dc68f78cae5eb6a8cd341cafee795d3d git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 11869ce402d95519d49b25a2a97741f68d69d103 git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 63fe3389b3e092d6c0eeea9fc0318e7918b16618 git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 4e179a60a60c0a5aea245e8e67768343c0f070b8 git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 030abbae49cf9fd1fba7aa08e15ec81efbeb78cf git Not specified
CNA Linux Linux affected 4636187da60b6e33526050235c610409d9cc00e8 ae5e95d4157481693be2317e3ffcd84e36010cbb git Not specified
CNA Linux Linux affected 4.0 Not specified
CNA Linux Linux unaffected 4.0 semver Not specified
CNA Linux Linux unaffected 5.10.259 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.210 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.176 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.86 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c3508895450cca4aeaf5dbadbb5e582363005264 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4e179a60a60c0a5aea245e8e67768343c0f070b8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ae5e95d4157481693be2317e3ffcd84e36010cbb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/63fe3389b3e092d6c0eeea9fc0318e7918b16618 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a88f5391dc68f78cae5eb6a8cd341cafee795d3d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/11869ce402d95519d49b25a2a97741f68d69d103 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1958a92599b2653d730ccb6f5685fc3fbed21812 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/030abbae49cf9fd1fba7aa08e15ec81efbeb78cf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report