Geetika Moolchandani

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The vulnerability is related to a deadlock in the MCS queue of the powerpc/qspinlock component. If an interrupt occurs after incrementing `qnodesp->count` and before initializing `node->lock`, another CPU might see stale lock values, leading to a deadlock. This can cause the CPU to spin indefinitely until its "next" pointer is set by its successor in the queue. The issue can be reproduced by running stress-ng on a 16-core shared LPAR, resulting in occasional lockups. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.