CVE-2026-46069wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()
- 7.8HighCVSS base score
- 0.14%Exploitation in 30 daysEPSS · top 96% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Undergoing Analysis | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.14% · top 96% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < c3508895450cca4aeaf5dbadbb5e582363005264
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < 1958a92599b2653d730ccb6f5685fc3fbed21812
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < a88f5391dc68f78cae5eb6a8cd341cafee795d3d
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < 11869ce402d95519d49b25a2a97741f68d69d103
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < 63fe3389b3e092d6c0eeea9fc0318e7918b16618
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < 4e179a60a60c0a5aea245e8e67768343c0f070b8
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < 030abbae49cf9fd1fba7aa08e15ec81efbeb78cf
- affected 4636187da60b6e33526050235c610409d9cc00e8 – < ae5e95d4157481693be2317e3ffcd84e36010cbb
- affected 4.0
- unaffected < 4.0
- unaffected 5.10.259 – ≤ 5.10.*
- unaffected 5.15.210 – ≤ 5.15.*
- unaffected 6.1.176 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References9
- https://git.kernel.org/stable/c/c3508895450cca4aeaf5dbadbb5e582363005264 (opens in a new tab)
- https://git.kernel.org/stable/c/1958a92599b2653d730ccb6f5685fc3fbed21812 (opens in a new tab)
- https://git.kernel.org/stable/c/a88f5391dc68f78cae5eb6a8cd341cafee795d3d (opens in a new tab)
- https://git.kernel.org/stable/c/11869ce402d95519d49b25a2a97741f68d69d103 (opens in a new tab)
- https://git.kernel.org/stable/c/63fe3389b3e092d6c0eeea9fc0318e7918b16618 (opens in a new tab)
- https://git.kernel.org/stable/c/4e179a60a60c0a5aea245e8e67768343c0f070b8 (opens in a new tab)
- https://git.kernel.org/stable/c/030abbae49cf9fd1fba7aa08e15ec81efbeb78cf (opens in a new tab)
- https://git.kernel.org/stable/c/ae5e95d4157481693be2317e3ffcd84e36010cbb (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32451 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46069)Record last updated .