{"id":4875,"date":"2026-09-04T18:46:50","date_gmt":"2026-09-04T10:46:50","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64585"},"modified":"2026-09-04T18:46:50","modified_gmt":"2026-09-04T10:46:50","slug":"cve-2026-64585","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-64585","title":{"rendered":"CVE-2026-64585 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ncan: esd_usb: kill an"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>can: esd_usb: kill anchored URBs before freeing netdevs<\/p>\n<p>esd_usb_disconnect() frees each CAN netdev with free_candev() inside<br \/>\nits per-netdev loop and only calls unlink_all_urbs(dev) afterwards.<br \/>\nThe per-netdev private data (struct esd_usb_net_priv) is embedded in<br \/>\nthe net_device allocation returned by alloc_candev(), so once<br \/>\nfree_candev() has run, dev-&gt;nets[i] points to freed memory.<br \/>\nunlink_all_urbs() then dereferences the freed dev-&gt;nets[i] to kill the<br \/>\nper-netdev TX anchor (usb_kill_anchored_urbs(&amp;priv-&gt;tx_submitted)),<br \/>\nclear active_tx_jobs, and reset priv-&gt;tx_contexts[].<\/p>\n<p>Reorder the teardown so the anchored URBs are killed before the netdevs<br \/>\nare freed, matching other CAN\/USB drivers in the same directory such as<br \/>\nems_usb, usb_8dev and mcba_usb, which unregister, then unlink, then<br \/>\nfree: unregister the netdevs first (which stops their TX queues), call<br \/>\nunlink_all_urbs(dev) once, then free the netdevs.<\/p>\n<p>This issue was found by an in-house static analysis tool.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>can: esd_usb: kill anchored URBs before freeing netdevs<\/p>\n<p>esd_usb_disconnect() frees each CAN netdev with free_candev() inside<br \/>\nits p<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-4875","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/4875","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=4875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}