CVE-2024-27393: linux-libc-dev - xen-netfront: Add missing skb_mark_for_recycle
Summary
CVE-2024-27393: In the Linux kernel, the following vulnerability has been resolved: xen-netfront: Add missing skb_mark_for_recycle Notice that skb_mark_for_recycle() is introduced later than fixes tag in commit 6a5bcd84e886 ("page_pool:... Affects linux versions 5.10.103-1 – 6.9.9-1. No fix is published. How to fix ↓
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Background
linux-libc-dev is a package that provides the necessary C library files for compiling and linking programs against the Linux kernel. It is an essential component for developing applications on Linux systems. The vulnerability affects the xen-netfront driver, which is responsible for handling network traffic in Xen virtualized environments.
Vulnerability Detail
The vulnerability (CVE-2024-27393) in the linux-libc-dev package arises from a missing call to skb_mark_for_recycle() in the xen-netfront driver. This issue was introduced between versions 5.9 and 5.14, where the fixes tag did not include a call to page_pool_release_page(). Starting from version 6.6, the call to page_pool_release_page() was removed, and remaining callers were converted. The leak caused by this missing call became visible in version 6.8. The vulnerability could potentially lead to memory leaks and impact the stability and performance of the system.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, applying the recommended fix by updating the linux-libc-dev package will address the issue.
Conclusion
The vulnerability in the linux-libc-dev package, specifically in the xen-netfront driver, can be addressed by updating the package to version 6.1.90-1 or later. This update includes the necessary fix to prevent memory leaks and ensure system stability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
linux-libc-dev is a package that provides the necessary C library files for compiling and linking programs against the Linux kernel. It is an essential component for developing applications on Linux systems.
The xen-netfront driver is responsible for handling network traffic in Xen virtualized environments.
skb_mark_for_recycle() is a function in the Linux kernel that marks a socket buffer (skb) for recycling, allowing it to be reused for incoming network packets.
The vulnerability can potentially lead to memory leaks, which can impact the stability and performance of the system.
To fix the vulnerability, update the linux-libc-dev package to version 6.1.90-1 or later.
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