CVE-2024-47696

A denial of service (DoS) vulnerability was found in the Linux kernel. The flush_workqueue function is invoked to flush the iwcm_wq work queue, but at that time, the iwcm_wq work queue is created via the alloc_ordered_workqueue function without the WQ_MEM_RECLAIM flag. Since the current process is trying to flush the whole iwcm_wq, if iwcm_wq doesn't have the WQ_MEM_RECLAIM flag, a work queue which doesn't have the WQ_MEM_RECLAIM flag can break forward-progress guarantee, leading to a deadlock.

This vulnerability results in a deadlock condition; it cannot be used to exploit confidentiality or integrity of the system and can only lead to denial of service, which is why CVSS has been marked as such.

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 don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.