CVE-2026-89982

high

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: mux: Fix channel node leak on adapter add failure i2c_mux_add_adapter() takes a reference to the Device Tree channel node before registering the new adapter. If adapter registration fails, the error path frees the private data without dropping that reference. Release the channel node before freeing the private data.

References

https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1

https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e

https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4

https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9

https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015

https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf

https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5

https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38

Details

Source: Mitre, NVD

Published: 2026-09-16

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.0021