CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's iommufd component, specifically in the handling of faults during user-space memory access. An attacker could exploit this flaw to cause a denial of service by triggering an infinite loop that results in 100% CPU usage while holding a mutex, potentially leading to system instability. Organizations using Linux in critical environments should prioritize addressing this issue to prevent performance degradation and ensure system reliability.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: iommufd: Break the loop on failure in iommufd_fault_fops_read() On a copy_to_user() failure inside the inner list_for_each_entry, only the inner loop breaks; the outer while re-fetches the just-restored fault group and retries the failing copy_to_user() forever, spinning the reader at 100% CPU with fault->mutex held. Check rc after the inner loop and break the outer while as well.
Related CVEs
Other vulnerabilities affecting the same vendor(s)