https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 23:43:17 +0000 https://vulnerability.circl.lu/vuln/cve-2026-46181 <p><strong>Affected:</strong> Linux, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9 and 5 more</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()</p> <p>Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with RCU, and it isn&#39;t even accessed within the RCU critical section. It also will crash if an event is delivered before the srq object is finished initializing.</p> <p>Use the spinlock since it isn&#39;t easy to make RCU work, use refcount_inc_not_zero() to protect against partially initialized objects, and order the refcount_set() to be after the srq is fully initialized.</p> <p><strong>Affected:</strong> Linux, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On, Red Hat Enterprise Linux 8.8 Telecommunications Update Service, Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions, Red Hat Enterprise Linux 9 and 5 more</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()</p> <p>Sashiko points out the radix_tree itself is RCU safe, but nothing ever frees the mlx4_srq struct with RCU, and it isn&#39;t even accessed within the RCU critical section. It also will crash if an event is delivered before the srq object is finished initializing.</p> <p>Use the spinlock since it isn&#39;t easy to make RCU work, use refcount_inc_not_zero() to protect against partially initialized objects, and order the refcount_set() to be after the srq is fully initialized.</p> https://vulnerability.circl.lu/vuln/cve-2026-46181