Kernel Vulnerabilities and Data Loss in Ubuntu Linux
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Kernel is the key component of Linux operating system, which works as a bridge between applications and data processing performed at hardware level. Its responsibilities include managing resources of the system (communication between hardware components and hardware). The Linux kernel provides lowest-level abstraction for the resources, which must be controlled by applications, to carry out their operations. However, in case of kernel panic or kernel corruption, Linux may not boot properly. In such circumstances, you can not access data from Linux hard drive and come across data loss situations. At this point, Linux Data Recovery becomes need of the hour to get your data back.
What is Kernel Panic or Kernel Vulnerabilities?
In Linux operating system, kernel panic is a step taken by the operating system after detecting internal fatal error by which it can not recover safely. The Linux kernel routines, which handle panics, are usually designed so as to output an error to console, wait for system reboot, or initiate the automatic system reboot. Kernel panic may occur due to various reasons, such as faulty kernel, missing/damaged Linux data structures, operating system malfunction, file system corruption, and missing system files.
Kernel Vulnerability in Ubuntu Linux:
In Ubuntu 5.10 operating system, there is a flaw in the counting of module reference for netfilter's loadable protocol modules. By doing specific socket operations, local attacker can exploit it to crash Linux kernel.
You may notice a race condition in add_key(), keyctl(), and request_key() functions. By changing the length of the string arguments, a local attacker can either read random parts of Linux kernel memory or crash Linux kernel.
Kernel crash may also crash your Linux computer and may make it unbootable. In such cases, the system can not find a healthy kernel to load the boot files into memory and start the operating system boot process.
In order to access your valuable data in such circumstances, you need to carry out Linux Recovery by resolving this issue. You can fix this issue by formatting the hard drive and reinstalling the operating system.
However, formatting removes all the data from hard drive and causes further data loss. To recover lost data, Data Recovery Linux is required. It is best possible using powerful third-party Linux Data Recovery applications. They work in all cases of logical data loss and recover your valuable data in safe and easy manner.
Questions and Answers
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