i2c: mux: Fix channel node leak on adapter add failure
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.
CVE-2026-89982
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89982
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "4f42f70afd2447f3c82ca69d1e03466a75348ba9",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "4c9bc46a2a4afb7a11c48d33bdf19febab431015",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "0927153f2abf48b6cc3e5f27063a17f7a8d47f38",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "b580f062b24c4eef562f08f210c028adb34ef14e",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "694e7e6edf249723ca7d3ef77c2ca1badfc78dc4",
"versionType": "git"
},
{
"status": "affected",
"version": "bc45449b1444611d68466ae7f45f235420d79019",
"lessThan": "385c7af4e3b95d0769fd211831674e83b16a2ebf",
"versionType": "git"
}
],
"programFiles": [
"drivers/i2c/i2c-mux.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/i2c/i2c-mux.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89982
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36420 · Revision 1
- Added to Heist Feed
- Publisher date