CVE-2022-48937

A vulnerability was found in the Linux kernel’s io_uring subsystem, specifically within the io_add_buffers() function. This issue could lead to soft lockups by repeatedly invoking kmalloc() in a loop of around 65,535 iterations, especially when debugging features like KASAN are enabled. Symptoms included the kernel watchdog reporting that a CPU was stuck for extended periods.

Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.