{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-68469", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.396Z", "datePublished": "2026-08-15T05:51:27.429Z", "dateUpdated": "2026-08-15T05:51:27.429Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:51:27.429Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: fix permanently busy scans after multiple roam iterations\n\nIn order for the firmware to sleep, the driver has to confirm a\npreviously received sleep request. The normal sequence of evets goes\nlike this:\nEVENT_SLEEP -> adapter->ps_state = PS_STATE_PRE_SLEEP -> sleep-confirm\n-> SLEEP -> EVENT_AWAKE -> AWAKE.\nBefore sending the sleep-confirm command, the driver must make sure\nthere are no commands either running or waiting to be completed.\n\nmwifiex_ret_802_11_associate() unconditionally sets\nps_state = PS_STATE_AWAKE when it processes the association command\nresponse, outside of the normal powersave management flow. If\nEVENT_SLEEP arrives while the association command is in flight,\nps_state is PRE_SLEEP when the association command response is parsed,\nand the forced AWAKE overwrites it. The deferred sleep-confirm is\nnever sent.\n\nA subsequent scan_start command is correctly acknowledged, but the\nfirmware doesn't generate scan_result events. The scan request never\nfinishes, and additional requests from userspace fail with -EBUSY.\n\nAfter testing on both IW412 and W8997, I could only trigger the bug on\nthe IW412 and observed the firmwares behave differently. On the IW412\nthe firmware still sends EVENT_SLEEP while the authentication /\nassociation process is ongoing. A W8997 under the same\nconditions seems to suppress power-save for the duration of the\nassociation, so PRE_SLEEP never coincided with the association response\neven after extended periods of testing using the loops\ndescribed below (>12hours).\n\nOn the IW412, the delay between commands that triggers an EVENT_SLEEP\nwas empirically determined to be ~20ms. This delay can naturally occur\nwhen the driver is outputting debugging information\n(debug_mask = 0x00000037), in which situation the busy scans issue is\nrepeatable while running \"test 1)\" as described below. If the delay\nbetween commands is less than ~20ms, the firmware stays awake and\nthe issue was not reproducible running the same test.\n\nThe host_mlme=false path also behaves differently. In this case, the\nentire authentication / association transaction is executed by one\ncommand (HostCmd_CMD_802_11_ASSOCIATE), and the firmware doesn't emit\nEVENT_SLEEP while the command is running.\n\nRemove the assignment so the ps_state is only manipulated in the paths\nthat are related to powersave event handling and on the main workqueue\nfor correct sleep confirmation.\n\nThe following loop tests were performed (with debugging output enabled):\n1) force roaming between two AP's, one 5GHz and one 2.4GHz, same\nSSID. Use wpa_cli to trigger the roaming behavior, sleep 2s\nbetween iterations.\n2) force a disconnection to AP 1 and a connection to AP 2, test\nscan. Use wpa_cli to trigger the connection changes, sleep 2s\nbetween iterations.\n\nEach test ran in each device for at least 3 hours." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/marvell/mwifiex/join.c" ], "versions": [ { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "2ed36b2586f16c480ed58de303af704c2235e16d", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "5796eabe435d83544b6fe39851ce47ca68fdb778", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "31a2c409f8f58d20f0f6391c151421155768ed77", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "deb5f0ae384f1cf41fccaf6375266db2f2911b2b", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "1bc55db2d34756bd53e4460dbb699619ee13cd7f", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "a59cfa165aee3e29d06145041c0ebe46a51de604", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "6126e12bf8c87badeab41a164c9689ac88e5c160", "status": "affected", "versionType": "git" }, { "version": "5e6e3a92b9a4c9416b17f468fa5c7fa2233b8b4e", "lessThan": "d78a407bad6f500884a8606aea1a5a9207be4030", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/marvell/mwifiex/join.c" ], "versions": [ { "version": "3.0", "status": "affected" }, { "version": "0", "lessThan": "3.0", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.261", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2-rc4", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "5.10.261" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "5.15.212" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.1.178" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.6.145" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.12.97" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.18.40" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "7.1.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "7.2-rc4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2ed36b2586f16c480ed58de303af704c2235e16d" }, { "url": "https://git.kernel.org/stable/c/5796eabe435d83544b6fe39851ce47ca68fdb778" }, { "url": "https://git.kernel.org/stable/c/31a2c409f8f58d20f0f6391c151421155768ed77" }, { "url": "https://git.kernel.org/stable/c/deb5f0ae384f1cf41fccaf6375266db2f2911b2b" }, { "url": "https://git.kernel.org/stable/c/1bc55db2d34756bd53e4460dbb699619ee13cd7f" }, { "url": "https://git.kernel.org/stable/c/a59cfa165aee3e29d06145041c0ebe46a51de604" }, { "url": "https://git.kernel.org/stable/c/6126e12bf8c87badeab41a164c9689ac88e5c160" }, { "url": "https://git.kernel.org/stable/c/d78a407bad6f500884a8606aea1a5a9207be4030" } ], "title": "wifi: mwifiex: fix permanently busy scans after multiple roam iterations", 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