{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix double free in hci_conn_cleanup\n\nsyzbot reports a slab use-after-free in hci_conn_hash_flush [1].\nAfter releasing an object using hci_conn_del_sysfs in the\nhci_conn_cleanup function, releasing the same object again\nusing the hci_dev_put and hci_conn_put functions causes a double free.\nHere's a simplified flow:\n\nhci_conn_del_sysfs:\n  hci_dev_put\n    put_device\n      kobject_put\n        kref_put\n          kobject_release\n            kobject_cleanup\n              kfree_const\n                kfree(name)\n\nhci_dev_put:\n  ...\n    kfree(name)\n\nhci_conn_put:\n  put_device\n    ...\n      kfree(name)\n\nThis patch drop the hci_dev_put and hci_conn_put function\ncall in hci_conn_cleanup function, because the object is\nfreed in hci_conn_del_sysfs function.\n\nThis patch also fixes the refcounting in hci_conn_add_sysfs() and\nhci_conn_del_sysfs() to take into account device_add() failures.\n\nThis fixes CVE-2023-28464."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "5c53afc766e0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "3c4236f1b2a7",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "53d61daf35b1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "ba7088769800",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "87624b1f9b78",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "fc666d1b4751",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "56a4fdde95ed",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "a85fb91e3d72",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "versions": [
                  {
                     "version": "4.19.300",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.262",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.202",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.140",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.64",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.5.13",
                     "lessThanOrEqual": "6.5.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.3",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.7",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/5c53afc766e07098429520b7677eaa164b593451"
            },
            {
               "url": "https://git.kernel.org/stable/c/3c4236f1b2a715e878a06599fa8b0cc21f165d28"
            },
            {
               "url": "https://git.kernel.org/stable/c/53d61daf35b1bbf3ae06e852ee107aa2f05b3776"
            },
            {
               "url": "https://git.kernel.org/stable/c/ba7088769800d9892a7e4f35c3137a5b3e65410b"
            },
            {
               "url": "https://git.kernel.org/stable/c/87624b1f9b781549e69f92db7ede012a21cec275"
            },
            {
               "url": "https://git.kernel.org/stable/c/fc666d1b47518a18519241cae213de1babd4a4ba"
            },
            {
               "url": "https://git.kernel.org/stable/c/56a4fdde95ed98d864611155f6728983e199e198"
            },
            {
               "url": "https://git.kernel.org/stable/c/a85fb91e3d728bdfc80833167e8162cce8bc7004"
            }
         ],
         "title": "Bluetooth: Fix double free in hci_conn_cleanup",
         "x_generator": {
            "engine": "bippy-d175d3acf727"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2023-52830",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}