In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/amd\/display: Use krealloc_array() in dal_vector_reserve()<\/p>\n
[Why & How]
\ndal_vector_reserve() computes the allocation size as
\n“capacity * vector->struct_size” using uint32_t arithmetic, which can
\nsilently wrap to a small value on overflow. This would cause krealloc to
\nreturn a smaller buffer than expected, leading to heap overflows on
\nsubsequent vector appends.<\/p>\n
Replace krealloc() with krealloc_array() which performs an internal
\noverflow check and returns NULL on wrap, preventing the issue.<\/p>\n
(cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
drm\/amd\/display: Use krealloc_array() in dal_vector_reserve()<\/p>\n
[Why & How]
\ndal_vector_reserve() computes the allocation size as
\n“ca<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-12459","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/12459","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=12459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}