CVE-2026-89504
8.4
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | bc407334e9a6a745de5360395282beb2690adf48 < d3c1316d84e0a036890b00ae6e4c0b0b80f70c25 | affected |
| Linux | Linux | bc407334e9a6a745de5360395282beb2690adf48 < 95342d26f9c6b68a46ab57fa48428a3c4a423dd7 | affected |
| Linux | Linux | bc407334e9a6a745de5360395282beb2690adf48 < 8648e29e5c01b6b677c704049189287e27255ccb | affected |
| Linux | Linux | bc407334e9a6a745de5360395282beb2690adf48 < f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c | affected |
| Linux | Linux | 3.13 | affected |
| Linux | Linux | 0 < 3.13 | unaffected |
| Linux | Linux | 6.12.109 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.50 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.4 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/d3c1316d84e0a036890b00ae6e4c0b0b80f70c25
- https://git.kernel.org/stable/c/95342d26f9c6b68a46ab57fa48428a3c4a423dd7
- https://git.kernel.org/stable/c/8648e29e5c01b6b677c704049189287e27255ccb
- https://git.kernel.org/stable/c/f9324d670ae0b88cbfb0aa48fcaefa5baeb8da4c
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