CVE-2024-26886 (GCVE-0-2024-26886)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-06-01 16:04
VLAI
Title
Bluetooth: af_bluetooth: Fix deadlock
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: af_bluetooth: Fix deadlock Attemting to do sock_lock on .recvmsg may cause a deadlock as shown bellow, so instead of using sock_sock this uses sk_receive_queue.lock on bt_sock_ioctl to avoid the UAF: INFO: task kworker/u9:1:121 blocked for more than 30 seconds. Not tainted 6.7.6-lemon #183 Workqueue: hci0 hci_rx_work Call Trace: <TASK> __schedule+0x37d/0xa00 schedule+0x32/0xe0 __lock_sock+0x68/0xa0 ? __pfx_autoremove_wake_function+0x10/0x10 lock_sock_nested+0x43/0x50 l2cap_sock_recv_cb+0x21/0xa0 l2cap_recv_frame+0x55b/0x30a0 ? psi_task_switch+0xeb/0x270 ? finish_task_switch.isra.0+0x93/0x2a0 hci_rx_work+0x33a/0x3f0 process_one_work+0x13a/0x2f0 worker_thread+0x2f0/0x410 ? __pfx_worker_thread+0x10/0x10 kthread+0xe0/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK>
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 17:41 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 2b16d960c79abc397f102c3d23d30005b68cb036 , < 60673f442984fe689d4127a5dd4be414247b3d67 (git)
Affected: 1d576c3a5af850bf11fbd103f9ba11aa6d6061fb , < 64be3c6154886200708da0dfe259705fb992416c (git)
Affected: 2e07e8348ea454615e268222ae3fc240421be768 , < 817e8138ce86001b2fa5c63d6ede756e205a01f7 (git)
Affected: 2e07e8348ea454615e268222ae3fc240421be768 , < 2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 (git)
Affected: 2e07e8348ea454615e268222ae3fc240421be768 , < f7b94bdc1ec107c92262716b073b3e816d4784fb (git)
Affected: db1b14eec8c61a20374de9f9c2ddc6c9406a8c42 (git)
Affected: 37f71e2c9f515834841826f4eb68ec33cfb2a1ff (git)
Affected: 5.15.146 , < 5.15.209 (semver)
Affected: 6.6.9 , < 6.6.23 (semver)
Affected: 5.10.206 , < 5.11 (semver)
Affected: 6.1.70 , < 6.2 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "current_release_date": "2026-01-22T15:43:19+00:00",
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      "id": "CVE-2024-26886",
      "initial_release_date": "2024-04-17T00:00:00+00:00",
      "product_status:fixed": "1295",
      "product_status:known_affected": "70",
      "product_status:known_not_affected": "109",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Bluetooth: af_bluetooth: Fix deadlock",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26886.json",
      "version": "3"
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            "title": "CVE Program Container"
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            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "dateReserved": "2024-02-19T14:20:24.185Z",
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}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.