CVE-2026-89982
kernel: i2c: mux: Fix channel node leak on adapter add failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 16, 2026
Updated · October 6, 2026
Description
A flaw was found in the Linux kernel's I2C (Inter-Integrated Circuit) multiplexer (mux) subsystem. This vulnerability can lead to a resource leak if an adapter fails to register, as a system resource is not properly released. Over time, this could result in resource exhaustion, potentially causing system instability or a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime