CVE-2026-46069wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Undergoing Analysis
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 4636187da60b6e33526050235c610409d9cc00e8 before c3508895450cca4aeaf5dbadbb5e582363005264; 4636187da60b6e33526050235c610409d9cc00e8 builds before 1958a92599b2653d730ccb6f5685fc3fbed21812; from 4636187da60b6e33526050235c610409d9cc00e8 before a88f5391dc68f78cae5eb6a8cd341cafee795d3d; 4636187da60b6e33526050235c610409d9cc00e8 builds before 11869ce402d95519d49b25a2a97741f68d69d103; 4636187da60b6e33526050235c610409d9cc00e8 builds before 63fe3389b3e092d6c0eeea9fc0318e7918b16618; 4636187da60b6e33526050235c610409d9cc00e8 builds before 4e179a60a60c0a5aea245e8e67768343c0f070b8; 4636187da60b6e33526050235c610409d9cc00e8 builds before 030abbae49cf9fd1fba7aa08e15ec81efbeb78cf; from 4636187da60b6e33526050235c610409d9cc00e8 before ae5e95d4157481693be2317e3ffcd84e36010cbb | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 4.0 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/c3508895450cca4aeaf5dbadbb5e582363005264patch
- https://git.kernel.org/stable/c/1958a92599b2653d730ccb6f5685fc3fbed21812patch
- https://git.kernel.org/stable/c/a88f5391dc68f78cae5eb6a8cd341cafee795d3dpatch
- https://git.kernel.org/stable/c/11869ce402d95519d49b25a2a97741f68d69d103patch
- https://git.kernel.org/stable/c/63fe3389b3e092d6c0eeea9fc0318e7918b16618patch
- https://git.kernel.org/stable/c/4e179a60a60c0a5aea245e8e67768343c0f070b8patch
- https://git.kernel.org/stable/c/030abbae49cf9fd1fba7aa08e15ec81efbeb78cfpatch
- https://git.kernel.org/stable/c/ae5e95d4157481693be2317e3ffcd84e36010cbbpatch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.