CVE-2026-63975
Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 19, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
15f02b91056253e8cdc592888f431da0731337b8 < 3c8eaa91eb433c450426539290be4ffe282e9f00 15f02b91056253e8cdc592888f431da0731337b8 < ecfed1e0d8efecad6737a0d83e21d2fd021d8c48 15f02b91056253e8cdc592888f431da0731337b8 < e6833e737a51db1e5ea0401322acf5e22abd8be6 15f02b91056253e8cdc592888f431da0731337b8 < 6319b38fe69f56ed95680ade485b957a53fff642 15f02b91056253e8cdc592888f431da0731337b8 < 291eec1041c918c460dc9702e44edd17794b4a4b 15f02b91056253e8cdc592888f431da0731337b8 < 41e29548b5e8b5e5fcf708786b3bea67cab107fa 15f02b91056253e8cdc592888f431da0731337b8 < d153b8898c0051eb8b6a083b35cbe304a5886bd5 15f02b91056253e8cdc592888f431da0731337b8 < 41c2713b204e6cb6a94587bc6bf6935107df5479
Linux / Linux
5.7
References
git.kernel.org: https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00 git.kernel.org: https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48 git.kernel.org: https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6 git.kernel.org: https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642 git.kernel.org: https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b git.kernel.org: https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa git.kernel.org: https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5 git.kernel.org: https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479