[Bug 1091] New: named set with flag interval: delete multiple items in one command bug

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1091

            Bug ID: 1091
           Summary: named set with flag interval: delete multiple items in
                    one command bug
           Product: nftables
           Version: unspecified
          Hardware: x86_64
                OS: Gentoo
            Status: NEW
          Severity: major
          Priority: P5
         Component: kernel
          Assignee: pablo at netfilter.org
          Reporter: karel at unitednetworks.cz

Created attachment 482
  --> https://bugzilla.netfilter.org/attachment.cgi?id=482&action=edit
Proof of bug script

System:
Gentoo AMD64, kernel 4.8.1
nft, libmnl, libnftnl compiled from git (as of 13.10.2016)

When adding IPv4 addresses one by one to set { type ipv4_addr; flags interval;
}, then deleting them all in one command, then adding them one by one again to
emptied set, some IPv4 addresses are shown as already in set, but they are not.

Without flags interval everything is ok. Or when deleting IPv4 addresses one by
one too, everything is ok.

It looks like some inconsistency in interval handling when deleting multiple
items in one command.

Example shell script is attached.

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