CVE-2026-68469
wifi: mwifiex: fix permanently busy scans after multiple roam iterations
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix permanently busy scans after multiple roam iterations In order for the firmware to sleep, the driver has to confirm a previously received sleep request. The normal sequence of evets goes like this: EVENT_SLEEP -> adapter->ps_state = PS_STATE_PRE_SLEEP -> sleep-confirm -> SLEEP -> EVENT_AWAKE -> AWAKE. Before sending the sleep-confirm command, the driver must make sure there are no commands either running or waiting to be completed. mwifiex_ret_802_11_associate() unconditionally sets ps_state = PS_STATE_AWAKE when it processes the association command response, outside of the normal powersave management flow. If EVENT_SLEEP arrives while the association command is in flight, ps_state is PRE_SLEEP when the association command response is parsed, and the forced AWAKE overwrites it. The deferred sleep-confirm is never sent. A subsequent scan_start command is correctly acknowledged, but the firmware doesn't generate scan_result events. The scan request never finishes, and additional requests from userspace fail with -EBUSY. After testing on both IW412 and W8997, I could only trigger the bug on the IW412 and observed the firmwares behave differently. On the IW412 the firmware still sends EVENT_SLEEP while the authentication / association process is ongoing. A W8997 under the same conditions seems to suppress power-save for the duration of the association, so PRE_SLEEP never coincided with the association response even after extended periods of testing using the loops described below (>12hours). On the IW412, the delay between commands that triggers an EVENT_SLEEP was empirically determined to be ~20ms. This delay can naturally occur when the driver is outputting debugging information (debug_mask = 0x00000037), in which situation the busy scans issue is repeatable while running "test 1)" as described below. If the delay between commands is less than ~20ms, the firmware stays awake and the issue was not reproducible running the same test. The host_mlme=false path also behaves differently. In this case, the entire authentication / association transaction is executed by one command (HostCmd_CMD_802_11_ASSOCIATE), and the firmware doesn't emit EVENT_SLEEP while the command is running. Remove the assignment so the ps_state is only manipulated in the paths that are related to powersave event handling and on the main workqueue for correct sleep confirmation. The following loop tests were performed (with debugging output enabled): 1) force roaming between two AP's, one 5GHz and one 2.4GHz, same SSID. Use wpa_cli to trigger the roaming behavior, sleep 2s between iterations. 2) force a disconnection to AP 1 and a connection to AP 2, test scan. Use wpa_cli to trigger the connection changes, sleep 2s between iterations. Each test ran in each device for at least 3 hours.
INFO
Published Date :
Aug. 15, 2026, 6:19 a.m.
Last Modified :
Aug. 17, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Update the Linux kernel driver.
- Ensure power state is handled correctly.
- Verify command processing logic.
- Remove incorrect power state assignments.
References to Advisories, Solutions, and Tools
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CVE-2026-68469.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68469 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-68469
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2026-68469 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68469 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '2ed36b2586f16c480ed58de303af704c2235e16d', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '5796eabe435d83544b6fe39851ce47ca68fdb778', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '31a2c409f8f58d20f0f6391c151421155768ed77', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'deb5f0ae384f1cf41fccaf6375266db2f2911b2b', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '1bc55db2d34756bd53e4460dbb699619ee13cd7f', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'a59cfa165aee3e29d06145041c0ebe46a51de604', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '6126e12bf8c87badeab41a164c9689ac88e5c160', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'd78a407bad6f500884a8606aea1a5a9207be4030', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '2ed36b2586f16c480ed58de303af704c2235e16d', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '5796eabe435d83544b6fe39851ce47ca68fdb778', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '31a2c409f8f58d20f0f6391c151421155768ed77', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'deb5f0ae384f1cf41fccaf6375266db2f2911b2b', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '1bc55db2d34756bd53e4460dbb699619ee13cd7f', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'a59cfa165aee3e29d06145041c0ebe46a51de604', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '6126e12bf8c87badeab41a164c9689ac88e5c160', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'd78a407bad6f500884a8606aea1a5a9207be4030', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '2ed36b2586f16c480ed58de303af704c2235e16d', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '5796eabe435d83544b6fe39851ce47ca68fdb778', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '31a2c409f8f58d20f0f6391c151421155768ed77', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'deb5f0ae384f1cf41fccaf6375266db2f2911b2b', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '1bc55db2d34756bd53e4460dbb699619ee13cd7f', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'a59cfa165aee3e29d06145041c0ebe46a51de604', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': '6126e12bf8c87badeab41a164c9689ac88e5c160', 'versionType': 'git'}, {'status': 'affected', 'version': '5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e', 'lessThan': 'd78a407bad6f500884a8606aea1a5a9207be4030', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc4', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/marvell/mwifiex/join.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: fix permanently busy scans after multiple roam iterations In order for the firmware to sleep, the driver has to confirm a previously received sleep request. The normal sequence of evets goes like this: EVENT_SLEEP -> adapter->ps_state = PS_STATE_PRE_SLEEP -> sleep-confirm -> SLEEP -> EVENT_AWAKE -> AWAKE. Before sending the sleep-confirm command, the driver must make sure there are no commands either running or waiting to be completed. mwifiex_ret_802_11_associate() unconditionally sets ps_state = PS_STATE_AWAKE when it processes the association command response, outside of the normal powersave management flow. If EVENT_SLEEP arrives while the association command is in flight, ps_state is PRE_SLEEP when the association command response is parsed, and the forced AWAKE overwrites it. The deferred sleep-confirm is never sent. A subsequent scan_start command is correctly acknowledged, but the firmware doesn't generate scan_result events. The scan request never finishes, and additional requests from userspace fail with -EBUSY. After testing on both IW412 and W8997, I could only trigger the bug on the IW412 and observed the firmwares behave differently. On the IW412 the firmware still sends EVENT_SLEEP while the authentication / association process is ongoing. A W8997 under the same conditions seems to suppress power-save for the duration of the association, so PRE_SLEEP never coincided with the association response even after extended periods of testing using the loops described below (>12hours). On the IW412, the delay between commands that triggers an EVENT_SLEEP was empirically determined to be ~20ms. This delay can naturally occur when the driver is outputting debugging information (debug_mask = 0x00000037), in which situation the busy scans issue is repeatable while running "test 1)" as described below. If the delay between commands is less than ~20ms, the firmware stays awake and the issue was not reproducible running the same test. The host_mlme=false path also behaves differently. In this case, the entire authentication / association transaction is executed by one command (HostCmd_CMD_802_11_ASSOCIATE), and the firmware doesn't emit EVENT_SLEEP while the command is running. Remove the assignment so the ps_state is only manipulated in the paths that are related to powersave event handling and on the main workqueue for correct sleep confirmation. The following loop tests were performed (with debugging output enabled): 1) force roaming between two AP's, one 5GHz and one 2.4GHz, same SSID. Use wpa_cli to trigger the roaming behavior, sleep 2s between iterations. 2) force a disconnection to AP 1 and a connection to AP 2, test scan. Use wpa_cli to trigger the connection changes, sleep 2s between iterations. Each test ran in each device for at least 3 hours. Added Reference https://git.kernel.org/stable/c/1bc55db2d34756bd53e4460dbb699619ee13cd7f Added Reference https://git.kernel.org/stable/c/2ed36b2586f16c480ed58de303af704c2235e16d Added Reference https://git.kernel.org/stable/c/31a2c409f8f58d20f0f6391c151421155768ed77 Added Reference https://git.kernel.org/stable/c/5796eabe435d83544b6fe39851ce47ca68fdb778 Added Reference https://git.kernel.org/stable/c/6126e12bf8c87badeab41a164c9689ac88e5c160 Added Reference https://git.kernel.org/stable/c/a59cfa165aee3e29d06145041c0ebe46a51de604 Added Reference https://git.kernel.org/stable/c/d78a407bad6f500884a8606aea1a5a9207be4030 Added Reference https://git.kernel.org/stable/c/deb5f0ae384f1cf41fccaf6375266db2f2911b2b