In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
powerpc\/spufs: fix out-of-bounds access in spufs_mem_mmap_access()<\/p>\n
spufs_mem_mmap_access() computes the local store offset as
\naddress – vma->vm_start, but bounds-checks it against vma->vm_end
\ninstead of the local store size. On 64-bit, offset is always well
\nbelow vma->vm_end, so the clamp never fires and len stays unbounded
\nagainst the LS_SIZE buffer returned by ctx->ops->get_ls().<\/p>\n
Reject offsets at or beyond LS_SIZE and clamp len to the remaining
\nspace, mirroring the guard already used by spufs_mem_mmap_fault() and
\nspufs_ps_fault().<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
powerpc\/spufs: fix out-of-bounds access in spufs_mem_mmap_access()<\/p>\n
spufs_mem_mmap_access() computes the local store offset as
\naddr<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6721","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6721","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=6721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}