Mutex Lock Vulnerability in Linux Kernel - CVE-2024-38594
Summary
CVE-2024-38594: In the Linux kernel, the following vulnerability has been resolved: net: stmmac: move the EST lock to struct stmmac_priv Reinitialize the whole EST structure would also reset the mutex lock which is embedded in the EST s... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
The Linux kernel is a core component of many operating systems, providing essential services for hardware management and system resources. It supports a wide range of functionalities, including process management, memory management, and device control. This vulnerability affects the stmmac driver, which is responsible for Ethernet device management, particularly in systems using the NXP i.MX8MPlus EVK board.
Vulnerability Detail
CVE-2024-38594 is a vulnerability in the Linux kernel related to the stmmac driver. The issue arises from the improper handling of the EST (Enhanced Switch Technology) structure's mutex lock during reinitialization. When the EST structure is reinitialized, the embedded mutex lock is also reset, leading to potential race conditions and warnings during execution. This can result in system instability and unexpected behavior, particularly when multiple threads attempt to access the same resources concurrently.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds provided for this vulnerability. Users are advised to apply the patch as soon as it is available to mitigate any risks associated with the vulnerability.
Conclusion
CVE-2024-38594 is a significant vulnerability in the Linux kernel that affects the stmmac driver, posing risks of system instability due to improper mutex lock handling. Users are advised to update their systems promptly to mitigate these risks and ensure continued stability and security.
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FAQ
CVE-2024-38594 is a vulnerability in the Linux kernel that affects the stmmac driver, leading to potential race conditions due to improper handling of mutex locks.
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The vulnerability can lead to system instability, unexpected behavior, and race conditions, particularly in multi-threaded environments.
Yes, users should upgrade to Linux kernel version 6.8.12-1 or later for Debian 13. For Debian 11 and 12, users should monitor for updates.
As of now, the urgency for a fix for Debian 11 and 12 has not yet been assigned, but users are encouraged to stay updated on any developments.
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