{"id":14849,"date":"2026-09-04T19:02:15","date_gmt":"2026-09-04T11:02:15","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53374"},"modified":"2026-09-04T19:02:15","modified_gmt":"2026-09-04T11:02:15","slug":"cve-2026-53374","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-53374","title":{"rendered":"CVE-2026-53374 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/amdgpu: zero-init"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: zero-initialize GART table on allocation<\/p>\n<p>GART TLB is flushed after unmapping but not after mapping. Since<br \/>\namdgpu_bo_create_kernel() does not zero-initialize the buffer, when a<br \/>\nsingle PTE is written the TLB may speculatively load other uninitialized<br \/>\nentries from the same cacheline. Those garbage entries can appear valid,<br \/>\nand a subsequent write to another PTE in the same cacheline may cause the<br \/>\nGPU to use a stale garbage PTE from the TLB.<\/p>\n<p>Fix this by calling memset_io() to zero-initialize the GART table with<br \/>\ngart_pte_flags immediately after allocation.<\/p>\n<p>Using AMDGPU_GEM_CREATE_VRAM_CLEARED, SDMA-based clear will not work<br \/>\nsince SDMA needs GART to be initialized to work.<\/p>\n<p>(cherry picked from commit d9af8263b82b6eaa60c5718e0c6631c5037e4b24)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/amdgpu: zero-initialize GART table on allocation<\/p>\n<p>GART TLB is flushed after unmapping but not after mapping. Since<br \/>\namdgpu_bo_cr<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14849","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14849","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=14849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}