CVE-2022-49474 (GCVE-0-2022-49474)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2025-05-04 12:44
VLAI?
Title
Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout
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
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 22c66af08230a7030bdb88accffaec3424695631 , < 9de3dc09e56f8deacd2bdbf4cecb71e11a312405 (git)
Affected: 0115a66ebb44bd9127ccb58cf43ed23c795eb1f0 , < 7d61dbd7311ab978d8ddac1749a758de4de00374 (git)
Affected: bc4b08383046f3282b6fa58cfcef05bd13e52b93 , < 390d82733a953c1fabf3de9c9618091a7a9c90a6 (git)
Affected: 5ccb04c6e1fb7b97fa2e1785b67c3a1cb3527ef7 , < 6f55fac0af3531cf60d11369454c41f5fc81ab3f (git)
Affected: 059c2c09f4b7f97711d0d8eaa0b9877f5e7d0a75 , < 36c644c63bfcaee2d3a426f45e89a9cd09799318 (git)
Affected: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 , < 65d347cb39e2e6bd0c2a745ad7c928998ebb0162 (git)
Affected: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 , < 537f619dea4e3fa8ed1f8f938abffe3615794bcc (git)
Affected: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 , < 99df16007f4bbf9abfc3478cb17d10f0d7f8906e (git)
Affected: e1dee2c1de2b4dd00eb44004a4bda6326ed07b59 , < 7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2 (git)
Affected: 98ae477ed1540d3acbbf44d88ee237ad64275158 (git)
Affected: f0c389e23e2475e5837716a629c81b7a9d90cc94 (git)
Affected: 0b9da4bde0d59c61b3675bdd80a05a726beb875a (git)
Create a notification for this product.
    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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          "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"
        }
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        "dateUpdated": "2025-05-04T12:44:51.218Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/9de3dc09e56f8deacd2bdbf4cecb71e11a312405"
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          "url": "https://git.kernel.org/stable/c/7d61dbd7311ab978d8ddac1749a758de4de00374"
        },
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          "url": "https://git.kernel.org/stable/c/390d82733a953c1fabf3de9c9618091a7a9c90a6"
        },
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          "url": "https://git.kernel.org/stable/c/6f55fac0af3531cf60d11369454c41f5fc81ab3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/36c644c63bfcaee2d3a426f45e89a9cd09799318"
        },
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          "url": "https://git.kernel.org/stable/c/65d347cb39e2e6bd0c2a745ad7c928998ebb0162"
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          "url": "https://git.kernel.org/stable/c/7aa1e7d15f8a5b65f67bacb100d8fc033b21efa2"
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      "title": "Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout",
      "x_generator": {
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  "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": "2025-05-04T12:44:51.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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\"98ae477ed1540d3acbbf44d88ee237ad64275158\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"f0c389e23e2475e5837716a629c81b7a9d90cc94\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0b9da4bde0d59c61b3675bdd80a05a726beb875a\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/sco.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.318\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.283\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.247\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.46\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/sco.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.318\", \"versionStartIncluding\": \"4.9.283\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.283\", \"versionStartIncluding\": \"4.14.247\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.247\", \"versionStartIncluding\": \"4.19.207\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.198\", \"versionStartIncluding\": \"5.4.146\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.121\", \"versionStartIncluding\": \"5.10.65\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.46\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.14\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.3\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"5.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"4.4.284\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.13.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"5.14.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:44:51.218Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49474\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:44:51.218Z\", \"dateReserved\": \"2025-02-26T02:08:31.579Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:13:16.679Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.