{"id":26027,"date":"2026-09-18T04:32:15","date_gmt":"2026-09-17T20:32:15","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93170"},"modified":"2026-09-18T04:32:15","modified_gmt":"2026-09-17T20:32:15","slug":"cve-2026-93170","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-93170","title":{"rendered":"CVE-2026-93170 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: xilinx_dma"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>dmaengine: xilinx_dma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers<\/p>\n<p>Fix a race condition in AXIDMA and MCDMA irq handlers where the channel<br \/>\ncould be incorrectly marked as idle and attempt spurious transfers when<br \/>\ndescriptors are still being processed.<\/p>\n<p>The issue occurs when:<br \/>\n1. Multiple descriptors are queued and active.<br \/>\n2. An interrupt fires after completing some descriptors.<br \/>\n3. xilinx_dma_complete_descriptor() moves completed descriptors to<br \/>\ndone_list.<br \/>\n4. Channel is marked idle and start_transfer() is called even though<br \/>\n   active_list still contains unprocessed descriptors.<br \/>\n5. This leads to premature transfer attempts and potential descriptor<br \/>\n   corruption or missed completions.<\/p>\n<p>Only mark the channel as idle and start new transfers when the active list<br \/>\nis actually empty, ensuring proper channel state management and avoiding<br \/>\nspurious transfer attempts.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>dmaengine: xilinx_dma: Fix channel idle state management in AXIDMA and MCDMA interrupt handlers<\/p>\n<p>Fix a race condition in AXIDMA and<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-26027","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/26027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}