PT-2026-36436 · Linux+1 · Linux Kernel+1
CVE-2026-43019
·
Published
2026-03-29
·
Updated
2026-08-20
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A Use-After-Free (UAF) issue exists in the Bluetooth component. In the
set cig params sync() function, the lookup and field access of hci conn are not properly protected by the hdev lock, which could allow the object to be freed concurrently. Using only an RCU (Read-Copy-Update) lock is insufficient as it does not prevent configuration tearing.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Linux Kernel
Ubuntu