CVE-2024-26645: A race condition vulnerability exists in the Linux kernel's tracing functionality, specifically when inserting elements into the tracing_map. This flaw can lead to unexpected warnings about duplicate histogram entries on multi-processor AArch64 systems, triggered by parallel execution of tracing commands and stress tests. The issue arises from CPU reordering of writes in the __tracing_map_insert() function.

The vulnerability allows a race condition where a CPU might incorrectly determine that a new key doesn't match an already present val->key. While the CVSS score is 0, indicating a low quantitative impact, the SOCRadar Vulnerability Risk Score (SVRS) is 30, suggesting a moderate level of risk due to the potential for system instability and logging errors, especially in high-performance environments using kernel tracing features. This means it's important to apply the patch that ensures visibility when inserting an element into the tracing_map function to avoid potential instability. The update should be implemented to prevent diagnostic inaccuracies.