In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: nf_tables: add hook transactions for device deletions<\/p>\n
Restore the flag that indicates that the hook is going away, ie.
\nNFT_HOOK_REMOVE, but add a new transaction object to track deletion
\nof hooks without altering the basechain\/flowtable hook_list during
\nthe preparation phase.<\/p>\n
The existing approach that moves the hook from the basechain\/flowtable
\nhook_list to transaction hook_list breaks netlink dump path readers
\nof this RCU-protected list.<\/p>\n
It should be possible use an array for nft_trans_hook to store the
\ndeleted hooks to compact the representation but I am not expecting
\nmany hook object, specially now that wildcard support for devices
\nis in place.<\/p>\n
Note that the nft_trans_chain_hooks() list contains a list of struct
\nnft_trans_hook objects for DELCHAIN and DELFLOWTABLE commands, while
\nthis list stores struct nft_hook objects for NEWCHAIN and NEWFLOWTABLE.
\nNote that new commands can be updated to use nft_trans_hook for
\nconsistency.<\/p>\n
This patch also adapts the event notification path to deal with the list
\nof hook transactions.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
netfilter: nf_tables: add hook transactions for device deletions<\/p>\n
Restore the flag that indicates that the hook is going away, ie.<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14924","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14924","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=14924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}