CVE-2022-49474 (GCVE-0-2022-49474)
Vulnerability from cvelistv5
Published
2025-02-26 02:13
Modified
2026-05-23 15:22
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout Connecting the same socket twice consecutively in sco_sock_connect() could lead to a race condition where two sco_conn objects are created but only one is associated with the socket. If the socket is closed before the SCO connection is established, the timer associated with the dangling sco_conn object won't be canceled. As the sock object is being freed, the use-after-free problem happens when the timer callback function sco_sock_timeout() accesses the socket. Here's the call trace: dump_stack+0x107/0x163 ? refcount_inc+0x1c/ print_address_description.constprop.0+0x1c/0x47e ? refcount_inc+0x1c/0x7b kasan_report+0x13a/0x173 ? refcount_inc+0x1c/0x7b check_memory_region+0x132/0x139 refcount_inc+0x1c/0x7b sco_sock_timeout+0xb2/0x1ba process_one_work+0x739/0xbd1 ? cancel_delayed_work+0x13f/0x13f ? __raw_spin_lock_init+0xf0/0xf0 ? to_kthread+0x59/0x85 worker_thread+0x593/0x70e kthread+0x346/0x35a ? drain_workqueue+0x31a/0x31a ? kthread_bind+0x4b/0x4b ret_from_fork+0x1f/0x30
Impacted products
Vendor Product Version
Linux Linux Version: 22c66af08230a7030bdb88accffaec3424695631
Version: 0115a66ebb44bd9127ccb58cf43ed23c795eb1f0
Version: bc4b08383046f3282b6fa58cfcef05bd13e52b93
Version: 5ccb04c6e1fb7b97fa2e1785b67c3a1cb3527ef7
Version: 059c2c09f4b7f97711d0d8eaa0b9877f5e7d0a75
Version: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59
Version: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59
Version: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59
Version: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59
Version: 98ae477ed1540d3acbbf44d88ee237ad64275158
Version: f0c389e23e2475e5837716a629c81b7a9d90cc94
Version: 0b9da4bde0d59c61b3675bdd80a05a726beb875a
Version: 4.9.283   
Version: 4.14.247   
Version: 4.19.207   
Version: 5.4.146   
Version: 5.10.65   
Version: 4.4.284   
Version: 5.13.17   
Version: 5.14.4   
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout\n\nConnecting the same socket twice consecutively in sco_sock_connect()\ncould lead to a race condition where two sco_conn objects are created\nbut only one is associated with the socket. If the socket is closed\nbefore the SCO connection is established, the timer associated with the\ndangling sco_conn object won\u0027t be canceled. As the sock object is being\nfreed, the use-after-free problem happens when the timer callback\nfunction sco_sock_timeout() accesses the socket. Here\u0027s the call trace:\n\ndump_stack+0x107/0x163\n? refcount_inc+0x1c/\nprint_address_description.constprop.0+0x1c/0x47e\n? refcount_inc+0x1c/0x7b\nkasan_report+0x13a/0x173\n? refcount_inc+0x1c/0x7b\ncheck_memory_region+0x132/0x139\nrefcount_inc+0x1c/0x7b\nsco_sock_timeout+0xb2/0x1ba\nprocess_one_work+0x739/0xbd1\n? cancel_delayed_work+0x13f/0x13f\n? __raw_spin_lock_init+0xf0/0xf0\n? to_kthread+0x59/0x85\nworker_thread+0x593/0x70e\nkthread+0x346/0x35a\n? drain_workqueue+0x31a/0x31a\n? kthread_bind+0x4b/0x4b\nret_from_fork+0x1f/0x30"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:22:21.227Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374"
        },
        {
          "url": "https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318"
        },
        {
          "url": "https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162"
        },
        {
          "url": "https://git.kernel.org/stable/c/537f619dea4e3fa8ed1f8f938abffe3615794bcc"
        },
        {
          "url": "https://git.kernel.org/stable/c/99df16007f4bbf9abfc3478cb17d10f0d7f8906e"
        },
        {
          "url": "https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2"
        }
      ],
      "title": "Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49474",
    "datePublished": "2025-02-26T02:13:16.679Z",
    "dateReserved": "2025-02-26T02:08:31.579Z",
    "dateUpdated": "2026-05-23T15:22:21.227Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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