{"id":33339,"date":"2026-10-06T20:31:48","date_gmt":"2026-10-06T12:31:48","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98270"},"modified":"2026-10-06T20:31:48","modified_gmt":"2026-10-06T12:31:48","slug":"cve-2026-98270","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98270","title":{"rendered":"CVE-2026-98270 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amdgpu: check ras"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: check ras and obj before dereference<\/p>\n<p>nbio_v7_9_handle_ras_controller_intr_no_bifring() dereferences ras and obj<br \/>\nwithout checking either for NULL. Both amdgpu_ras_get_context() and<br \/>\namdgpu_ras_find_obj() can return NULL, e.g. during the window between<br \/>\nadev-&gt;nbio.ras being set (early in amdgpu_ras_init(), by design, to<br \/>\nenable the fatal-error interrupt as soon as possible) and the PCIE_BIF<br \/>\nras object actually being created in RAS late_init. Any interrupt in that<br \/>\nwindow crashes in hard-IRQ context.<\/p>\n<p>This is analogous to commit d190b459b2a4 (&#8220;drm\/amdgpu: the warning<br \/>\ndereferencing obj for nbio_v7_4&#8221;), which fixed the same issue in the<br \/>\nnbio_v7_4 handler.<\/p>\n<p>Found by Linux Verification Center (linuxtesting.org) with SVACE.<\/p>\n<p>(cherry picked from commit c7071767a50a32ed727cf800ac84372429e3b4b3)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: check ras and obj before dereference<\/p>\n<p>nbio_v7_9_handle_ras_controller_intr_no_bifring() dereferences ras and obj<br \/>\nwithou<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33339","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33339","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=33339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}