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

Description

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.

Timeline

  1. ID reserved

    By Linux

  2. · 2 months later

    Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-23299, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.13% · top 97% of all CVEs (14 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Affected products

  • Linux · Linux

    • affected 134f4b39df7b77225a80ef585c15d46f964f5e6f – < 2b6c942a526635f5c61d2f000258e620da32d3a7
    • affected 134f4b39df7b77225a80ef585c15d46f964f5e6f – < 3de7c10a950b36affc692d8bd2ac713852580e56
    • affected 134f4b39df7b77225a80ef585c15d46f964f5e6f – < 21e4271e65094172aadd5beb8caea95dd0fbf6d7

  • Linux · Linux

    • affected 6.15
    • unaffected < 6.15
    • unaffected 6.18.17 – ≤ 6.18.*
    • unaffected 6.19.7 – ≤ 6.19.*
    • unaffected 7.0 – ≤ *

References

References3

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .