Infinite Loop Vulnerability in Linux Kernel - CVE-2024-50272
Summary
CVE-2024-50272: In the Linux kernel, the following vulnerability has been resolved: filemap: Fix bounds checking in filemap_read() If the caller supplies an iocb->ki_pos value that is close to the filesystem upper limit, and an iterator... 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 is known for its robustness and flexibility, supporting a wide range of devices and architectures. However, like any complex software, it is susceptible to vulnerabilities that can compromise system stability and security. CVE-2024-50272 specifically affects the filemap_read() function, which is responsible for reading data from files in the filesystem.
Vulnerability Detail
CVE-2024-50272 is a vulnerability in the Linux kernel that arises from improper bounds checking in the filemap_read() function. When a caller provides an iocb->ki_pos value that is near the filesystem's upper limit, combined with an iterator count that causes an overflow, the function can enter an infinite loop. This behavior was identified during testing with xfstests generic/525 while utilizing the 'localio' optimization for loopback NFS mounts. The implications of this vulnerability include potential denial of service, as the system may become unresponsive due to the infinite loop.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. However, avoiding the use of configurations that lead to the conditions described in the vulnerability may help mitigate risks until a patch is applied.
Conclusion
CVE-2024-50272 represents a significant vulnerability in the Linux kernel that can lead to system instability. Users are encouraged to update their systems to the latest patched versions to mitigate the risk. Regular monitoring for vulnerabilities using tools like Vulert can help maintain system security.
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FAQ
CVE-2024-50272 is a vulnerability in the Linux kernel that can cause an infinite loop in the filemap_read() function due to improper bounds checking.
This vulnerability can lead to a denial of service, causing the system to become unresponsive if exploited.
The vulnerability affects the Linux kernel across various Debian versions, including Debian 11, 12, and 13.
You can use tools like Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected.
Yes, users are advised to update their Linux kernel to the latest version that includes the patch for CVE-2024-50272.
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