In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/nouveau\/dmem: pin VRAM for the whole registered range<\/p>\n
Commit c32287471077 (“gpu\/drm\/nouveau: enable THP support for GPU memory
\nmigration”) grew the device-private region that
\nnouveau_dmem_chunk_alloc() registers from DMEM_CHUNK_SIZE to
\nDMEM_CHUNK_SIZE * NR_CHUNKS, but left the VRAM buffer object backing that
\nregion at DMEM_CHUNK_SIZE.<\/p>\n
nouveau_dmem_page_addr() returns chunk->bo->offset plus the page’s offset
\nwithin the registered region, so every page past the first chunk resolves
\nto VRAM outside the buffer object.<\/p>\n
Size the buffer object to the region it backs.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/nouveau\/dmem: pin VRAM for the whole registered range<\/p>\n
Commit c32287471077 (“gpu\/drm\/nouveau: enable THP support for GPU memory<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-40990","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/40990","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=40990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}