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CVE-2026-89982

i2c: mux: Fix channel node leak on adapter add failure

N/A
Published: September 16, 2026 at 10:32 AM UTC
Updated: October 19, 2026 at 09:18 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
3.5bc45449b1444611d68466ae7f45f235420d79019
Vendor states this is fixed in 0927153f2abf48b6cc3e5f27063a17f7a8d47f38 (fixed)
Vendor states this is fixed in 2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5 (fixed)
Vendor states this is fixed in 385c7af4e3b95d0769fd211831674e83b16a2ebf (fixed)
Vendor states this is fixed in 4c9bc46a2a4afb7a11c48d33bdf19febab431015 (fixed)
Vendor states this is fixed in 4f42f70afd2447f3c82ca69d1e03466a75348ba9 (fixed)
Vendor states this is fixed in 694e7e6edf249723ca7d3ef77c2ca1badfc78dc4 (fixed)
Vendor states this is fixed in b580f062b24c4eef562f08f210c028adb34ef14e (fixed)
Vendor states this is fixed in dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1 (fixed)
Vendor states this is fixed in 3.5 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.51 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.5 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/4f42f70afd2447f3c82ca69d1e03466a75348ba9
Source: cverecord
https://git.kernel.org/stable/c/4c9bc46a2a4afb7a11c48d33bdf19febab431015
Source: cverecord
https://git.kernel.org/stable/c/dd2c1e6747b17b24ecddd48a7bb6bb964c2793d1
Source: cverecord
https://git.kernel.org/stable/c/0927153f2abf48b6cc3e5f27063a17f7a8d47f38
Source: cverecord
https://git.kernel.org/stable/c/b580f062b24c4eef562f08f210c028adb34ef14e
Source: cverecord
https://git.kernel.org/stable/c/2b3b06cb709c4bf75a3fe3da3a0ca368ee3b40e5
Source: cverecord
https://git.kernel.org/stable/c/694e7e6edf249723ca7d3ef77c2ca1badfc78dc4
Source: cverecord
https://git.kernel.org/stable/c/385c7af4e3b95d0769fd211831674e83b16a2ebf

Quick Info

StatusRECEIVED

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