CVE-2024-50197: pinctrl: intel: platform: fix error path in device_for_each_child_node()
First published: Fri Nov 08 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: pinctrl: intel: platform: fix error path in device_for_each_child_node() The device_for_each_child_node() loop requires calls to fwnode_handle_put() upon early returns to decrement the refcount of the child node and avoid leaking memory if that error path is triggered. There is one early returns within that loop in intel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is missing. Instead of adding the missing call, the scoped version of the loop can be used to simplify the code and avoid mistakes in the future if new early returns are added, as the child node is only used for parsing, and it is never assigned.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.8<6.11.5 | |
| Linux Kernel | =6.12-rc1 | |
| Linux Kernel | =6.12-rc2 | |
| Linux Kernel | =6.12-rc3 |
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Reference Links
- https://git.kernel.org/stable/c/be3f7b9f995a6c2ee02767a0319929a2a98adf69
- https://git.kernel.org/stable/c/16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-50197
- https://nvd.nist.gov/vuln/detail/CVE-2024-50197
- https://launchpad.net/bugs/cve/CVE-2024-50197
- https://security-tracker.debian.org/tracker/CVE-2024-50197
- https://ubuntu.com/security/CVE-2024-50197
Frequently Asked Questions
What is the severity of CVE-2024-50197?
CVE-2024-50197 has been classified as having a moderate severity due to its impact on resource management in the Linux kernel.
How do I fix CVE-2024-50197?
To address CVE-2024-50197, you should upgrade to a patched version of the Linux kernel that resolves the vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-50197?
CVE-2024-50197 affects Linux kernel versions 6.8 through 6.11.5, as well as 6.12-rc1, 6.12-rc2, and 6.12-rc3.
What components are involved in CVE-2024-50197?
CVE-2024-50197 involves the pinctrl subsystem in the Linux kernel, specifically the device_for_each_child_node() function.
Is CVE-2024-50197 a remote exploit vulnerability?
CVE-2024-50197 is not a remote exploit vulnerability; it requires escalation of privileges on the local system.
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