CVE-2026-89504
regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving dangling of_node pointer
Description
In the Linux kernel, the following vulnerability has been resolved: regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving dangling of_node pointer In as3722_get_regulator_dt_data(), of_get_child_by_name() acquires a reference on np, which is then assigned to pdev->dev.of_node. The function immediately calls of_node_put(np), releasing the reference and leaving pdev->dev.of_node as a dangling pointer. Remove the of_node_put(np) call to let the device hold the reference.
INFO
Published Date :
Sept. 11, 2026, 8:19 p.m.
Last Modified :
Sept. 14, 2026, 1:19 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Remove the of_node_put(np) call.
- Ensure device holds the reference correctly.
References to Advisories, Solutions, and Tools
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CVE-2026-89504.
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associated with the following CWEs:
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weaknesses.
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CVE-2026-89504 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-89504 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 14, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/89xxx/CVE-2026-89504.json">CVE-2026-89504</a> Added Reference https://git.kernel.org/stable/c/0bde4f140e90f87ebd49cd9c884c4bb3f19fe931 Added Reference https://git.kernel.org/stable/c/bd5606e9da1a01a61c7d2f5df36243414a0142be Added Reference https://git.kernel.org/stable/c/d9b1407477fb736978b04108073180ca84958936 Added Reference https://git.kernel.org/stable/c/eda08b6bd64f01ca9defbfcc9e0c3e30f46cfc02 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 13, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Sep. 11, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: regulator: as3722_get_regulator_dt_data: fix premature of_node_put leaving dangling of_node pointer In as3722_get_regulator_dt_data(), of_get_child_by_name() acquires a reference on np, which is then assigned to pdev->dev.of_node. The function immediately calls of_node_put(np), releasing the reference and leaving pdev->dev.of_node as a dangling pointer. Remove the of_node_put(np) call to let the device hold the reference. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/89xxx/CVE-2026-89504.json">CVE-2026-89504</a> Added Reference https://git.kernel.org/stable/c/8648e29e5c01b6b677c704049189287e27255ccb Added Reference https://git.kernel.org/stable/c/95342d26f9c6b68a46ab57fa48428a3c4a423dd7 Added Reference https://git.kernel.org/stable/c/d3c1316d84e0a036890b00ae6e4c0b0b80f70c25 Added Reference https://git.kernel.org/stable/c/f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c