tree 35267772a114c8e450bf167076d5cef1c1e81e75
parent a27b58fed90cc5654e2daf1d292cc5bc61be4dd7
author James Morris <jmorris@namei.org> 1162249722 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1162250682 -0800

[IPV6]: fix lockup via /proc/net/ip6_flowlabel

There's a bug in the seqfile handling for /proc/net/ip6_flowlabel, where,
after finding a flowlabel, the code will loop forever not finding any
further flowlabels, first traversing the rest of the hash bucket then just
looping.

This patch fixes the problem by breaking after the hash bucket has been
traversed.

Note that this bug can cause lockups and oopses, and is trivially invoked
by an unpriveleged user.

Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: David S. Miller <davem@davemloft.net>