In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: qlcnic: validate unified ROM sections before loading<\/p>\n
The unified ROM parser reads directory, product, and data-descriptor fields
\nfrom the firmware file. Existing validation forms table and data ends with
\nunchecked additions and multiplications. Malformed values can wrap before
\nthey are compared with the firmware size. The parser also dereferences
\ntyped pointers at firmware-controlled offsets.<\/p>\n
Valid descriptor extents alone are insufficient for the consumers. The
\nloader reads a fixed-size bootloader regardless of its declared size, the
\nversion parser assumes a 17-byte tail, and a partial final firmware word is
\nread as a full u64. A truncated image can therefore make the driver read
\nbeyond the firmware allocation during validation or loading.<\/p>\n
Replace the pointer-returning parser with bounded range helpers. Validate
\ntable entry sizes, descriptor indices, section ranges, the fixed
\nbootloader load length, and the version tail before exposing any section.
\nRead all file fields with unaligned little-endian accessors and assemble a
\npartial final word from only the bytes that remain. Apply the same range
\nchecks to the legacy image before reading its fixed fields.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: qlcnic: validate unified ROM sections before loading<\/p>\n
The unified ROM parser reads directory, product, and data-descriptor fie<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25521","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25521","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=25521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}