In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/vmwgfx: drop dma_buf reference on foreign-fd prime import<\/p>\n
ttm_prime_fd_to_handle() returns -ENOSYS when the imported fd’s
\ndma_buf->ops do not match the ttm_object_device’s ops, but does so
\nwithout releasing the reference acquired by dma_buf_get(). Any
\nunprivileged renderD client passing a non-vmwgfx prime fd through the
\nDRM_VMW_GB_SURFACE_REF{,_EXT} path leaks one dma_buf reference per
\ncall and indefinitely pins the foreign exporter’s GEM resources.<\/p>\n
Funnel the error path through the existing dma_buf_put() so the
\nreference is always dropped.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/vmwgfx: drop dma_buf reference on foreign-fd prime import<\/p>\n
ttm_prime_fd_to_handle() returns -ENOSYS when the imported fd’s
\ndma_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17468","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17468","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=17468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}