{"id":"CVE-2026-89982","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: mux: Fix channel node leak on adapter add failure\n\ni2c_mux_add_adapter() takes a reference to the Device Tree channel node\nbefore registering the new adapter","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: mux: Fix channel node leak on adapter add failure\n\ni2c_mux_add_adapter() takes a reference to the Device Tree channel node\nbefore registering the new adapter. If a…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 4f42f70afd2447f3c82ca69d1e03466a75348ba9","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 4c9bc46a2a4afb7a11c48d33bdf19febab431015","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 0927153f2abf48b6cc3e5f27063a17f7a8d47f38","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < b580f062b24c4eef562f08f210c028adb34ef14e","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 694e7e6edf249723ca7d3ef77c2ca1badfc78dc4","Linux >= bc45449b1444611d68466ae7f45f235420d79019 < 385c7af4e3b95d0769fd211831674e83b16a2ebf","Linux 3.5"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:17:09.147","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89982","references":[{"url":"https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89982.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89982"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535237"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89982"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89982"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89982.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:53.954Z","epss":0.00216,"epssPercentile":0.12009,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-89982","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ni2c: mux: Fix channel node leak on adapter add failure\n\ni2c_mux_add_adapter() takes a reference to the Device Tree channel node\nbefore registering the new adapter. If adapter registration fails, the\nerror path frees the private data without dropping that reference.\n\nRelease the channel node before freeing the private data.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89982.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216227,"id":"CVE-2026-89982","ts":1791274042851,"field":"cvss","old":null,"new":"5.5"},{"seq":216226,"id":"CVE-2026-89982","ts":1791274042851,"field":"severity","old":"none","new":"medium"}]}