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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-63975 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp If dcid is received for an already-assigned destination CID the spec requires that both channels to be discarded, but calling l2cap_chan_del may invalidate the tmp cursor created by list_for_each_entry_safe and in fact it is the wrong procedure as the chan->dcid may be assigned previously it really needs to be disconnected. Calling l2cap_chan_clone directly may still lead to l2cap_chan_del so instead schedule l2cap_chan_timeout with delay 0 to close the channel asynchronously.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b kernel.org
https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00 kernel.org
https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479 kernel.org
https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa kernel.org
https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642 kernel.org
https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5 kernel.org
https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6 kernel.org
https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-63975
NVD Published Date:
07/19/2026
NVD Last Modified:
07/20/2026
Source:
kernel.org