In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()<\/p>\n
There is potential deadloop in race condition:<\/p>\n
Thread A\t\t\t\tThread B
\n– fsync
\n – f2fs_do_sync_file
\n – f2fs_fsync_node_pages
\n – last_fsync_dnode
\n – folio_get(last_folio)
\n\t\t\t\t\t– f2fs_setattr
\n\t\t\t\t\t – f2fs_truncate
\n\t\t\t\t\t – f2fs_truncate_blocks
\n\t\t\t\t\t – f2fs_do_truncate_blocks
\n\t\t\t\t\t – f2fs_truncate_inode_blocks
\n\t\t\t\t\t – truncate_dnode
\n\t\t\t\t\t – truncate_node
\n\t\t\t\t\t – invalidate_mapping_pages
\n\t\t\t\t\t – folio->mapping = NULL
\n – is_node_folio alwasy return false
\n – atomic && !marked is always true,
\n then goto retry<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()<\/p>\n
There is potential deadloop in race condition:<\/p>\n
Thread A\t\t\t\tThrea<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24520","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24520","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=24520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}