Critical Race Condition Vulnerability in Linux Kernel: DEBIAN-CVE-2024-41053
Summary
DEBIAN-CVE-2024-41053: In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Fix ufshcd_abort_one racing issue When ufshcd_abort_one is racing with the completion ISR, the completed tag of the request's mq_hctx p... Affects linux versions < 6.9.10-1. Fixed in 6.9.10-1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential services for software applications. It is widely used in various environments, from servers to embedded systems. The kernel's stability and security are paramount, as vulnerabilities can lead to severe consequences, including system crashes and unauthorized access. This specific vulnerability affects the SCSI UFS (Universal Flash Storage) subsystem, which is crucial for managing storage devices.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2024-41053 arises from a race condition in the ufshcd_abort_one function within the Linux kernel. This issue occurs when ufshcd_abort_one is executed concurrently with the completion interrupt service routine (ISR). When this happens, the completed tag of the request's mq_hctx pointer may be set to NULL by the ISR, leading to a kernel NULL pointer dereference. This can result in system instability, crashes, or potential exploitation by malicious actors to execute arbitrary code.
How To Fix
Minimum fixed version
6.9.10-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. The best course of action is to apply the patch as soon as it becomes available.
Conclusion
The DEBIAN-CVE-2024-41053 vulnerability poses a significant risk to systems running the affected versions of the Linux kernel. It is essential for users to update to the patched version to protect their systems from potential exploitation. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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FAQ
It is a critical vulnerability in the Linux kernel related to a race condition in the SCSI UFS subsystem.
This vulnerability can lead to system crashes and may allow attackers to execute arbitrary code, compromising system security.
Yes, the patch is available in version 6.9.10-1 of the Linux package. Users should update to this version.
You can use Vulert, a tool that monitors open-source vulnerabilities. By using the manifest file like package-lock.json, it can alert you in real-time. You can also check your application using the Vulert playground without signing up.
While there are no specific workarounds, it is crucial to prioritize updating your system to mitigate the risk associated with this vulnerability.
References
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