In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
smb: client: fix OOB struct field reads in move_smb2_ea_to_cifs()<\/p>\n
In move_smb2_ea_to_cifs(), the while (src_size > 0) loop condition is
\ninsufficient. It allows iteration to continue even if the remaining
\nsrc_size is too small to contain a complete smb2_ea_info structure.
\nConsequently, reads of ea_name_length and ea_value_length can occur
\nout-of-bounds.<\/p>\n
Fix this by ensuring src_size >= sizeof(*src) before attempting to read
\nany structure fields. Additionally, reject any next_entry_offset that is
\nsmaller than sizeof(*src) or that would advance the pointer beyond the
\navailable buffer.<\/p>\n
Note that for calls where the server returns a malformed EA list, the
\nerror returned to userspace changes from -ENODATA (getxattr) or
\n-ERANGE (listxattr) to -EIO. This correctly signals a server protocol
\nerror rather than misleadingly indicating “attribute not present” or
\n“output buffer too small”.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
smb: client: fix OOB struct field reads in move_smb2_ea_to_cifs()<\/p>\n
In move_smb2_ea_to_cifs(), the while (src_size > 0) loop conditi<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-33239","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/33239","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=33239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=33239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=33239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}