{
   "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: ISO: Fix multiple init when debugfs is disabled\n\nIf bt_debugfs is not created successfully, which happens if either\nCONFIG_DEBUG_FS or CONFIG_DEBUG_FS_ALLOW_ALL is unset, then iso_init()\nreturns early and does not set iso_inited to true. This means that a\nsubsequent call to iso_init() will result in duplicate calls to\nproto_register(), bt_sock_register(), etc.\n\nWith CONFIG_LIST_HARDENED and CONFIG_BUG_ON_DATA_CORRUPTION enabled, the\nduplicate call to proto_register() triggers this BUG():\n\n  list_add double add: new=ffffffffc0b280d0, prev=ffffffffbab56250,\n    next=ffffffffc0b280d0.\n  ------------[ cut here ]------------\n  kernel BUG at lib/list_debug.c:35!\n  Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI\n  CPU: 2 PID: 887 Comm: bluetoothd Not tainted 6.10.11-1-ao-desktop #1\n  RIP: 0010:__list_add_valid_or_report+0x9a/0xa0\n  ...\n    __list_add_valid_or_report+0x9a/0xa0\n    proto_register+0x2b5/0x340\n    iso_init+0x23/0x150 [bluetooth]\n    set_iso_socket_func+0x68/0x1b0 [bluetooth]\n    kmem_cache_free+0x308/0x330\n    hci_sock_sendmsg+0x990/0x9e0 [bluetooth]\n    __sock_sendmsg+0x7b/0x80\n    sock_write_iter+0x9a/0x110\n    do_iter_readv_writev+0x11d/0x220\n    vfs_writev+0x180/0x3e0\n    do_writev+0xca/0x100\n  ...\n\nThis change removes the early return. The check for iso_debugfs being\nNULL was unnecessary, it is always NULL when iso_inited is false."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/bluetooth/iso.c"
               ],
               "versions": [
                  {
                     "version": "ccf74f2390d6",
                     "lessThan": "fa4b832c5a6e",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ccf74f2390d6",
                     "lessThan": "8fb8e912afb4",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ccf74f2390d6",
                     "lessThan": "adf1b179c2ff",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "ccf74f2390d6",
                     "lessThan": "a9b7b535ba19",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "net/bluetooth/iso.c"
               ],
               "versions": [
                  {
                     "version": "6.0",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "6.0",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1.114",
                     "lessThanOrEqual": "6.1.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.6.58",
                     "lessThanOrEqual": "6.6.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.11.5",
                     "lessThanOrEqual": "6.11.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.12-rc4",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/fa4b832c5a6ec35023a1b997cf658c436619c752"
            },
            {
               "url": "https://git.kernel.org/stable/c/8fb8e912afb4c47dec12ea9a5853e7a8db95816f"
            },
            {
               "url": "https://git.kernel.org/stable/c/adf1b179c2ff8073c24bf87e5a605fcc5a09798b"
            },
            {
               "url": "https://git.kernel.org/stable/c/a9b7b535ba192c6b77e6c15a4c82d853163eab8c"
            }
         ],
         "title": "Bluetooth: ISO: Fix multiple init when debugfs is disabled",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2024-50077",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}