Medium 5.5Published Mar 25, 2026

CVE-2026-23299Bluetooth: purge error queues in socket destructors

Updated under an hour ago (Oct 26, 2026, 3:40 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: purge error queues in socket destructors When TX timestamping is enabled via SO_TIMESTAMPING, SKBs may be queued into sk_error_queue and will stay there until consumed. If userspace never gets to read the timestamps, or if the controller is removed unexpectedly, these SKBs will leak. Fix by adding skb_queue_purge() calls for sk_error_queue in affected bluetooth destructors. RFCOMM does not currently use sk_error_queue.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	134f4b39df7b77225a80ef585c15d46f964f5e6f builds before 2b6c942a526635f5c61d2f000258e620da32d3a7; 134f4b39df7b77225a80ef585c15d46f964f5e6f builds before 3de7c10a950b36affc692d8bd2ac713852580e56; 134f4b39df7b77225a80ef585c15d46f964f5e6f builds before 21e4271e65094172aadd5beb8caea95dd0fbf6d7	CNA record
linux linux_kernel linux:linux_kernel	from 6.15 before 6.18.17; from 6.19 before 6.19.7; 7.0	NVD

References

References

https://git.kernel.org/stable/c/2b6c942a526635f5c61d2f000258e620da32d3a7	patch
https://git.kernel.org/stable/c/3de7c10a950b36affc692d8bd2ac713852580e56	patch
https://git.kernel.org/stable/c/21e4271e65094172aadd5beb8caea95dd0fbf6d7	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.