A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service. ========Wind River Notice======== This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable. The specific flaw exists within the processing of SMB2_SESSION_SETUP commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. The Base Score is 5.9 MEDIUM, so this CVE cannot be considered minimal. This feature is controlled by CONFIG_SMB_SERVER which is not enabled by default in WRLinux. yocto-kernel-cache-yp$ git branch yocto-5.15 yocto-kernel-cache-yp$ grep -rn --color CONFIG_SMB_SERVER Mitigation: disabling the feature.
