In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfs: Fix uninitialized return value in netfs_unbuffered_write()<\/p>\n
If preparation of the first subrequest fails,
\nnetfs_unbuffered_write() exits its loop before ret is initialized. The
\nempty-iterator check can do the same.<\/p>\n
For synchronous writes, netfs_unbuffered_write_iter_locked() may then
\nreturn an unrelated error instead of wreq->error. This is reachable
\nthrough CIFS if cifs_prepare_write() fails to reopen the file or obtain
\ncredits.<\/p>\n
Initialize ret to 0 so the caller returns wreq->error if no data was
\nwritten, or the number of bytes already written otherwise.<\/p>\n
Found with Clang’s -Wconditional-uninitialized.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfs: Fix uninitialized return value in netfs_unbuffered_write()<\/p>\n
If preparation of the first subrequest fails,
\nnetfs_unbuffered_w<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29042","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29042","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=29042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}