CVE-2021-47044

A shift-out-of-bounds vulnerability was found in the Linux kernel, which affects the load_balance() function in the sched/fair component, and is caused when the to-be-active-balanced task is not allowed to run on env->dst_cpu, allowing the sd->nr_balance_failed value to grow exceedingly large.

Red Hat Enterprise Linux 8 and 9 are not affected by this vulnerability.

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.