{"id":24557,"date":"2026-09-16T20:32:28","date_gmt":"2026-09-16T12:32:28","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89870"},"modified":"2026-09-16T20:32:28","modified_gmt":"2026-09-16T12:32:28","slug":"cve-2026-89870","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89870","title":{"rendered":"CVE-2026-89870 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: zoran: Avoid f"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>media: zoran: Avoid freeing a registered video_device twice<\/p>\n<p>zoran_init_video_device() installs zoran_vdev_release() as the<br \/>\nvideo_device release callback through zoran_template. After<br \/>\nvideo_register_device() succeeds, video_unregister_device() drops the<br \/>\nregistered video_device reference and the V4L2 core eventually invokes<br \/>\nthat release callback, which kfree()s the video_device.<\/p>\n<p>zoran_exit_video_devices() called video_unregister_device() and then<br \/>\nkfree(zr-&gt;video_dev), so device teardown could free the same<br \/>\nvideo_device twice.<\/p>\n<p>Remove the direct kfree() and clear the cached pointer after<br \/>\nunregistering. The pre-registration failure path keeps its manual free<br \/>\nbecause the video_device was not registered there.<\/p>\n<p>This issue was found by a static analysis checker and confirmed by<br \/>\nmanual source review.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>media: zoran: Avoid freeing a registered video_device twice<\/p>\n<p>zoran_init_video_device() installs zoran_vdev_release() as the<br \/>\nvideo_d<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24557","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24557","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=24557"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24557"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24557"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}