CVE-2026-89982i2c: mux: Fix channel node leak on adapter add failure
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 33 days later
· 33 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 88% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 4f42f70afd2447f3c82ca69d1e03466a75348ba9
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 4c9bc46a2a4afb7a11c48d33bdf19febab431015
- affected bc45449b1444611d68466ae7f45f235420d79019 – < dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 0927153f2abf48b6cc3e5f27063a17f7a8d47f38
- affected bc45449b1444611d68466ae7f45f235420d79019 – < b580f062b24c4eef562f08f210c028adb34ef14e
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 694e7e6edf249723ca7d3ef77c2ca1badfc78dc4
- affected bc45449b1444611d68466ae7f45f235420d79019 – < 385c7af4e3b95d0769fd211831674e83b16a2ebf
- affected 3.5
- unaffected < 3.5
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9 (opens in a new tab)
- https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015 (opens in a new tab)
- https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1 (opens in a new tab)
- https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38 (opens in a new tab)
- https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e (opens in a new tab)
- https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5 (opens in a new tab)
- https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4 (opens in a new tab)
- https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-80582 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-89982)Record last updated .