In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ntfs: reject non-resident records for resident-only attributes<\/p>\n
The shared lookup-time attribute validator rejects non-resident
\n$FILE_NAME and $VOLUME_NAME records because their formats require
\nresident values and callers handle returned records as resident
\nattributes. Other resident-only attribute types still pass through the
\ngeneric non-resident mapping-pairs checks.<\/p>\n
That leaves real resident\/non-resident union confusion paths. Inode load
\nlooks up $STANDARD_INFORMATION and then reads data.resident.value_offset
\nwithout checking a->non_resident. ntfs_inode_sync_standard_information()
\ndoes the same when updating the standard information value.
\nntfs_write_volume_flags() also looks up $VOLUME_INFORMATION and reads
\ndata.resident.value_offset directly. $INDEX_ROOT callers in dir.c and
\nindex.c depend on the same lookup contract before consuming the resident
\nindex root value.<\/p>\n
Reject non-resident records for all resident-only attribute types in the
\nshared validator. Keep the existing $FILE_NAME and $VOLUME_NAME behavior,
\nbut factor it through a helper and extend it to
\n$STANDARD_INFORMATION, $OBJECT_ID, $VOLUME_INFORMATION, $INDEX_ROOT, and
\n$EA_INFORMATION. For $OBJECT_ID and $EA_INFORMATION this is contract
\nhardening for resident-only formats; this patch only rejects the
\nnon-resident form and does not add new resident value validation for
\nthose types.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ntfs: reject non-resident records for resident-only attributes<\/p>\n
The shared lookup-time attribute validator rejects non-resident
\n$FI<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6829","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6829","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=6829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}