vulnerability
Red Hat: CVE-2023-53297: kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:S/C:C/I:C/A:C) | Sep 16, 2025 | Oct 28, 2025 | Nov 14, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:S/C:C/I:C/A:C)
Published
Sep 16, 2025
Added
Oct 28, 2025
Modified
Nov 14, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
conn->chan_lock isn't acquired before l2cap_get_chan_by_scid,
if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance'
is triggered.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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