{"id":24628,"date":"2026-09-16T20:32:34","date_gmt":"2026-09-16T12:32:34","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89941"},"modified":"2026-09-16T20:32:34","modified_gmt":"2026-09-16T12:32:34","slug":"cve-2026-89941","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89941","title":{"rendered":"CVE-2026-89941 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\niio: buffer: Make IIO"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>iio: buffer: Make IIO DMA fence release RCU-safe<\/p>\n<p>The `dma_fence` documentation states that if a custom release<br \/>\nimplementation is provided, the `dma_fence` object must be freed in an<br \/>\nRCU-safe way. The current `iio_dma_fence` implementation uses `kfree()`,<br \/>\nwhich might result in a use-after-free.<\/p>\n<p>Remove the custom `release` implementation. This makes the DMA fence core<br \/>\nfall back to `dma_fence_free()`, which calls `kfree_rcu()` on the fence.<br \/>\nThis requires that the fence be the first member of `struct iio_dma_fence`.<\/p>\n<p>Using the default release method for extended DMA fence structures is a<br \/>\ncommon pattern.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>iio: buffer: Make IIO DMA fence release RCU-safe<\/p>\n<p>The `dma_fence` documentation states that if a custom release<br \/>\nimplementation is p<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24628","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24628","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=24628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}