CVE-2024-41062 (GCVE-0-2024-41062)

Vulnerability from cvelistv5 – Published: 2024-07-29 14:57 – Updated: 2026-08-05 11:35
VLAI
Title
bluetooth/l2cap: sync sock recv cb and release
Summary
In the Linux kernel, the following vulnerability has been resolved: bluetooth/l2cap: sync sock recv cb and release The problem occurs between the system call to close the sock and hci_rx_work, where the former releases the sock and the latter accesses it without lock protection. CPU0 CPU1 ---- ---- sock_close hci_rx_work l2cap_sock_release hci_acldata_packet l2cap_sock_kill l2cap_recv_frame sk_free l2cap_conless_channel l2cap_sock_recv_cb If hci_rx_work processes the data that needs to be received before the sock is closed, then everything is normal; Otherwise, the work thread may access the released sock when receiving data. Add a chan mutex in the rx callback of the sock to achieve synchronization between the sock release and recv cb. Sock is dead, so set chan data to NULL, avoid others use invalid sock pointer.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa , < 605572e64cd9cebb05ed609d96cff05b50d18cdf (git)
Affected: 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa , < b803f30ea23e0968b6c8285c42adf0d862ab2bf6 (git)
Affected: 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa , < 3b732449b78183d17178db40be3a4401cf3cd629 (git)
Affected: 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa , < 89e856e124f9ae548572c56b1b70c2255705f8fe (git)
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Linux Linux Affected: 3.4
Unaffected: 0 , < 3.4 (semver)
Unaffected: 6.1.101 , ≤ 6.1.* (semver)
Unaffected: 6.6.42 , ≤ 6.6.* (semver)
Unaffected: 6.9.11 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "product_status:fixed": "305",
      "product_status:known_affected": "98",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: bluetooth/l2cap: sync sock recv cb and release",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-41062.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/605572e64cd9cebb05ed609d96cff05b50d18cdf\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/b803f30ea23e0968b6c8285c42adf0d862ab2bf6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/3b732449b78183d17178db40be3a4401cf3cd629\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/89e856e124f9ae548572c56b1b70c2255705f8fe\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:00:10.323Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-41062\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:22:05.690775Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:13.945Z\"}}], \"cna\": {\"title\": \"bluetooth/l2cap: sync sock recv cb and release\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa\", \"lessThan\": \"605572e64cd9cebb05ed609d96cff05b50d18cdf\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa\", \"lessThan\": \"b803f30ea23e0968b6c8285c42adf0d862ab2bf6\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa\", \"lessThan\": \"3b732449b78183d17178db40be3a4401cf3cd629\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa\", \"lessThan\": \"89e856e124f9ae548572c56b1b70c2255705f8fe\", \"versionType\": \"git\"}], \"programFiles\": [\"net/bluetooth/l2cap_sock.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.101\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.42\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.11\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/bluetooth/l2cap_sock.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/605572e64cd9cebb05ed609d96cff05b50d18cdf\"}, {\"url\": \"https://git.kernel.org/stable/c/b803f30ea23e0968b6c8285c42adf0d862ab2bf6\"}, {\"url\": \"https://git.kernel.org/stable/c/3b732449b78183d17178db40be3a4401cf3cd629\"}, {\"url\": \"https://git.kernel.org/stable/c/89e856e124f9ae548572c56b1b70c2255705f8fe\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbluetooth/l2cap: sync sock recv cb and release\\n\\nThe problem occurs between the system call to close the sock and hci_rx_work,\\nwhere the former releases the sock and the latter accesses it without lock protection.\\n\\n           CPU0                       CPU1\\n           ----                       ----\\n           sock_close                 hci_rx_work\\n\\t   l2cap_sock_release         hci_acldata_packet\\n\\t   l2cap_sock_kill            l2cap_recv_frame\\n\\t   sk_free                    l2cap_conless_channel\\n\\t                              l2cap_sock_recv_cb\\n\\nIf hci_rx_work processes the data that needs to be received before the sock is\\nclosed, then everything is normal; Otherwise, the work thread may access the\\nreleased sock when receiving data.\\n\\nAdd a chan mutex in the rx callback of the sock to achieve synchronization between\\nthe sock release and recv cb.\\n\\nSock is dead, so set chan data to NULL, avoid others use invalid sock pointer.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.101\", \"versionStartIncluding\": \"3.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.42\", \"versionStartIncluding\": \"3.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.11\", \"versionStartIncluding\": \"3.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"3.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-01-05T10:37:28.348Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-41062\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-05T10:37:28.348Z\", \"dateReserved\": \"2024-07-12T12:17:45.627Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-29T14:57:24.352Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.