In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/gpusvm: publish dpagemap early to avoid device mapping leak on error<\/p>\n
drm_gpusvm_get_pages() only stored the local dpagemap into
\nsvm_pages->dpagemap on the success path. If a later page failed (e.g.
\n-EOPNOTSUPP when ctx->allow_mixed is false) and jumped to err_unmap,
\nsvm_pages->dpagemap was still NULL, so __drm_gpusvm_unmap_pages() skipped
\ndevice_unmap() and leaked the device mappings already created.<\/p>\n
Assign svm_pages->dpagemap when the first device page is mapped so the
\nerr_unmap path can device_unmap() those mappings.<\/p>\n
This issue was found by Sashiko AI review.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/gpusvm: publish dpagemap early to avoid device mapping leak on error<\/p>\n
drm_gpusvm_get_pages() only stored the local dpagemap int<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-5394","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/5394","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=5394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}