{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: do not realloc workqueue everytime an interface is added\n\nCommit 09ed8bfc5215 (\"wilc1000: Rename workqueue from \"WILC_wq\" to\n\"NETDEV-wq\"\") moved workqueue creation in wilc_netdev_ifc_init in order to\nset the interface name in the workqueue name. However, while the driver\nneeds only one workqueue, the wilc_netdev_ifc_init is called each time we\nadd an interface over a phy, which in turns overwrite the workqueue with a\nnew one. This can be observed with the following commands:\n\nfor i in $(seq 0 10)\ndo\n  iw phy phy0 interface add wlan1 type managed\n  iw dev wlan1 del\ndone\nps -eo pid,comm|grep wlan\n\n 39 kworker/R-wlan0\n 98 kworker/R-wlan1\n102 kworker/R-wlan1\n105 kworker/R-wlan1\n108 kworker/R-wlan1\n111 kworker/R-wlan1\n114 kworker/R-wlan1\n117 kworker/R-wlan1\n120 kworker/R-wlan1\n123 kworker/R-wlan1\n126 kworker/R-wlan1\n129 kworker/R-wlan1\n\nFix this leakage by putting back hif_workqueue allocation in\nwilc_cfg80211_init. Regarding the workqueue name, it is indeed relevant to\nset it lowercase, however it is not  attached to a specific netdev, so\nenforcing netdev name in the name is not so relevant. Still, enrich the\nname with the wiphy name to make it clear which phy is using the workqueue."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/wireless/microchip/wilc1000/cfg80211.c",
                  "drivers/net/wireless/microchip/wilc1000/netdev.c"
               ],
               "versions": [
                  {
                     "version": "09ed8bfc5215",
                     "lessThan": "515cc676dfbc",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "09ed8bfc5215",
                     "lessThan": "4041c60a9d54",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "09ed8bfc5215",
                     "lessThan": "90ae293d1d25",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "09ed8bfc5215",
                     "lessThan": "9ab0c303ccab",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "09ed8bfc5215",
                     "lessThan": "328efda22af8",
                     "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/microchip/wilc1000/cfg80211.c",
                  "drivers/net/wireless/microchip/wilc1000/netdev.c"
               ],
               "versions": [
                  {
                     "version": "5.17",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.17",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.83",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.23",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7.11",
                     "lessThanOrEqual": "6.7.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.8.2",
                     "lessThanOrEqual": "6.8.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.9",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/515cc676dfbce40d93c92b1ff3c1070e917f4e52"
            },
            {
               "url": "https://git.kernel.org/stable/c/4041c60a9d543b3ad50225385b072ba68e96166e"
            },
            {
               "url": "https://git.kernel.org/stable/c/90ae293d1d255f622318fce6eeea2e18f9fde5c1"
            },
            {
               "url": "https://git.kernel.org/stable/c/9ab0c303ccabfd6bdce14432792d41090070008c"
            },
            {
               "url": "https://git.kernel.org/stable/c/328efda22af81130c2ad981c110518cb29ff2f1d"
            }
         ],
         "title": "wifi: wilc1000: do not realloc workqueue everytime an interface is added",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-27391",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}