In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
platform\/x86: ISST: Validate socket ID in clos_assoc ioctl<\/p>\n
isst_if_clos_assoc() validates the user-supplied socket_id with
\n‘socket_id > topology_max_packages()’, but isst_common.sst_inst[] is
\nallocated with topology_max_packages() entries, so the valid index range
\nis [0, topology_max_packages()). The ‘>’ comparison lets
\nsocket_id == topology_max_packages() pass and index one entry past the
\narray.<\/p>\n
In addition, isst_common.sst_inst[socket_id] is NULL for an in-range
\npackage that has no bound TPMI SST instance, and the pointer is used
\nwithout a NULL check. Both the out-of-bounds entry and the NULL pointer
\nare then dereferenced by map_partition_power_domain_id() and the
\nfollowing power_domain_info access.<\/p>\n
Reject socket_id >= topology_max_packages() and a NULL sst_inst, matching
\nthe checks already performed by get_instance().<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
platform\/x86: ISST: Validate socket ID in clos_assoc ioctl<\/p>\n
isst_if_clos_assoc() validates the user-supplied socket_id with
\n‘socket<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21364","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21364","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=21364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}