{"id":41220,"date":"2026-10-19T00:32:40","date_gmt":"2026-10-18T16:32:40","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98748"},"modified":"2026-10-19T00:32:40","modified_gmt":"2026-10-18T16:32:40","slug":"cve-2026-98748","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98748","title":{"rendered":"CVE-2026-98748 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_bcm7271:"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>serial: 8250_bcm7271: fix use-after-free in brcmuart_remove()<\/p>\n<p>brcmuart_handle_irq() starts priv-&gt;hrt to work around a receive-timeout<br \/>\nquirk of the 8250 core when hardware flow control is enabled; the timer<br \/>\ncallback brcmuart_hrtimer_func() dereferences priv.<\/p>\n<p>brcmuart_remove() cancels the hrtimer before it unregisters the port, so<br \/>\na receive-timeout interrupt that arrives in between re-arms the timer.<br \/>\nAfter devm frees priv, the callback runs on freed memory.<\/p>\n<p>Unregister the port before cancelling the hrtimer.<br \/>\nserial8250_unregister_port() shuts the port down and frees its IRQ, so<br \/>\nbrcmuart_handle_irq() can no longer restart the timer, and the final<br \/>\nhrtimer_cancel() drains any timer that was armed before or during the<br \/>\nunregister.<\/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>serial: 8250_bcm7271: fix use-after-free in brcmuart_remove()<\/p>\n<p>brcmuart_handle_irq() starts priv-&gt;hrt to work around a receive-time<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41220","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41220","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=41220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}