Advisory Published
Updated

CVE-2024-50021: ice: Fix improper handling of refcount in ice_dpll_init_rclk_pins()

First published: Mon Oct 21 2024(Updated: )

In the Linux kernel, the following vulnerability has been resolved: ice: Fix improper handling of refcount in ice_dpll_init_rclk_pins() This patch addresses a reference count handling issue in the ice_dpll_init_rclk_pins() function. The function calls ice_dpll_get_pins(), which increments the reference count of the relevant resources. However, if the condition WARN_ON((!vsi || !vsi->netdev)) is met, the function currently returns an error without properly releasing the resources acquired by ice_dpll_get_pins(), leading to a reference count leak. To resolve this, the check has been moved to the top of the function. This ensures that the function verifies the state before any resources are acquired, avoiding the need for additional resource management in the error path. This bug was identified by an experimental static analysis tool developed by our team. The tool specializes in analyzing reference count operations and detecting potential issues where resources are not properly managed. In this case, the tool flagged the missing release operation as a potential problem, which led to the development of this patch.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected SoftwareAffected VersionHow to fix
Linux kernel>=6.7<6.11.4
Linux kernel=6.12-rc1
Linux kernel=6.12-rc2
Linux Kernel>=6.7<6.11.4
Linux Kernel=6.12-rc1
Linux Kernel=6.12-rc2
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2024-50021?

    CVE-2024-50021 is a vulnerability in the Linux kernel related to improper reference count handling.

  • How do I fix CVE-2024-50021?

    To fix CVE-2024-50021, update your Linux kernel to the patched versions including 5.10.223-1, 6.1.128-1, or 6.12.15-1.

  • Which Linux kernel versions are affected by CVE-2024-50021?

    CVE-2024-50021 affects Linux kernel versions between 6.7 and 6.11.4, as well as versions 6.12-rc1 and 6.12-rc2.

  • What components are involved in CVE-2024-50021?

    CVE-2024-50021 specifically involves improper handling in the ice_dpll_init_rclk_pins() function of the ice driver.

  • Is CVE-2024-50021 a high-risk vulnerability?

    CVE-2024-50021 can potentially lead to system instability, making it a significant risk for affected systems.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203