https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 29 Sep 2026 07:27:03 +0000 https://vulnerability.circl.lu/vuln/cve-2026-89570 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>cxl/mce: Make the MCE notifier per-region</p> <p>Flavien Solt reported lifetime issues with the CXL MCE notifier, which can lead to NULL dereferences and use-after-free in the MCE handler. The notifier was registered per memory device and stored in &#39;struct cxl_memdev_state&#39;, even though it only needs the region state (the region&#39;s SPA range and its extended linear cache size).</p> <p>Instead of keeping the memory device and endpoint alive, the correct fix is to move the notifier into &#39;struct cxl_region&#39; and register it from cxl_region_probe() as it should be a per-region notifier. Setup the registration to only happen for regions that have an extended linear cache as that is the only current usage.</p> <p>Remove cxl_port_get_spa_cache_alias() as it is now dead code.</p> <p>[ dj: Update dev_warn() when notifier fails due to kconfig. (Ben) ]</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>cxl/mce: Make the MCE notifier per-region</p> <p>Flavien Solt reported lifetime issues with the CXL MCE notifier, which can lead to NULL dereferences and use-after-free in the MCE handler. The notifier was registered per memory device and stored in &#39;struct cxl_memdev_state&#39;, even though it only needs the region state (the region&#39;s SPA range and its extended linear cache size).</p> <p>Instead of keeping the memory device and endpoint alive, the correct fix is to move the notifier into &#39;struct cxl_region&#39; and register it from cxl_region_probe() as it should be a per-region notifier. Setup the registration to only happen for regions that have an extended linear cache as that is the only current usage.</p> <p>Remove cxl_port_get_spa_cache_alias() as it is now dead code.</p> <p>[ dj: Update dev_warn() when notifier fails due to kconfig. (Ben) ]</p> https://vulnerability.circl.lu/vuln/cve-2026-89570