Answer in brief
CVE-2026-89982 records a Unknown severity vulnerability in i2c: mux: Fix channel node leak on adapter add failure. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bc45449b1444611d68466ae7f45f235420d79019 <4f42f70afd2447f3c82ca69d1e03466a75348ba9 || >=bc45449b1444611d68466ae7f45f235420d79019 <4c9bc46a2a4afb7a11c48d33bdf19febab431015 || >=bc45449b1444611d68466ae7f45f235420d79019 <dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1 || >=bc45449b1444611d68466ae7f45f235420d79019 <0927153f2abf48b6cc3e5f27063a17f7a8d47f38 || >=bc45449b1444611d68466ae7f45f235420d79019 <b580f062b24c4eef562f08f210c028adb34ef14e || >=bc45449b1444611d68466ae7f45f235420d79019 <2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5 || >=bc45449b1444611d68466ae7f45f235420d79019 <694e7e6edf249723ca7d3ef77c2ca1badfc78dc4 || >=bc45449b1444611d68466ae7f45f235420d79019 <385c7af4e3b95d0769fd211831674e83b16a2ebf | 4f42f70afd2447f3c82ca69d1e03466a75348ba9, 4c9bc46a2a4afb7a11c48d33bdf19febab431015, dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1, 0927153f2abf48b6cc3e5f27063a17f7a8d47f38, b580f062b24c4eef562f08f210c028adb34ef14e, 2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5, 694e7e6edf249723ca7d3ef77c2ca1badfc78dc4, 385c7af4e3b95d0769fd211831674e83b16a2ebf |
| Linux/Linuxgeneric | 3.5 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.