CVE-2023-54274

A flaw was addressed in the Linux kernel’s RDMA SRPT (SCSI RDMA Protocol Target) subsystem. When unregistering a MAD (Management Datagram) agent, the SRPT module previously performed a non-NULL check on the mad_agent pointer before invoking ib_unregister_mad_agent(). Under rare timing conditions—specifically, concurrent execution of srpt_add_one() and srpt_remove_one()—mad_agent may hold an error value that passes the non-NULL test. This can lead to a NULL pointer dereference and kernel crash when the RoCE driver unregisters an ib_device

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.