CVE-2026-52918 (GCVE-0-2026-52918)

Vulnerability from cvelistv5 – Published: 2026-06-24 07:14 – Updated: 2026-10-19 19:37
VLAI
Title
Bluetooth: serialize accept_q access
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.
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: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:22 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d9ce4de05df2385c19e2c7d12f529144e1a44af1 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 41c8c1c7923e86e0eb59cfb4279349112756a336 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4ec17782fd186f901a7329605d11048b085b945a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < be43e6b4043113c3b3cf887c3c8350f67140274c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 85f8674cae82053f1e6bab295f6a8422cca14db5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8b4c412e001b0c670eb937beab491af974da55b3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a218bf69eb51fefe59a3976fa8925261141f681c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e83f5e24da741fa9405aeeff00b08c5ee7c37b88 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (semver)
Unaffected: 6.12.92 , ≤ 6.12.* (semver)
Unaffected: 6.18.34 , ≤ 6.18.* (semver)
Unaffected: 7.0.11 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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}



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