CVE-2026-63975
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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 15f02b91056253e8cdc592888f431da0731337b8 < 3c8eaa91eb433c450426539290be4ffe282e9f00, 15f02b91056253e8cdc592888f431da0731337b8 < ecfed1e0d8efecad6737a0d83e21d2fd021d8c48, 15f02b91056253e8cdc592888f431da0731337b8 < e6833e737a51db1e5ea0401322acf5e22abd8be6, 15f02b91056253e8cdc592888f431da0731337b8 < 6319b38fe69f56ed95680ade485b957a53fff642 … |
| Linux | Linux | — | 5.7, 0 < 5.7, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00
- https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48
- https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6
- https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642
- https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b
- https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa
- https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5
- https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479