netfilter: nft_set_rbtree: handle element re-addition after deletion
The existing code selects no next branch to be inspected when re-inserting an inactive element into the rb-tree, looping endlessly. This patch restricts the check for active elements to the EEXIST case only. Fixes: e701001e ("netfilter: nft_rbtree: allow adjacent intervals with dynamic updates") Reported-by: Wolfgang Bumiller <w.bumiller@proxmox.com> Tested-by: Wolfgang Bumiller <w.bumiller@proxmox.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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