DEBIAN-CVE-2026-52918

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-52918
Published: 24 Jun 2026, 08:16
Last modified:05 Jul 2026, 20:00

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Jun 2026, 08:16
Published
Vulnerability first disclosed
05 Jul 2026, 20:00
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    all | all | < 5.10.259-1 | < 6.1.176-1 | < 6.12.94-1 | < 7.0.12-1

  • debian•linux-6.1

    < 6.1.176-1~deb11u1

References (1)