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sit: fix off-by-one in ipip6_tunnel_get_prl
authorSascha Hlusiak <contact@saschahlusiak.de>
Tue, 29 Sep 2009 11:27:05 +0000 (11:27 +0000)
committerDavid S. Miller <davem@davemloft.net>
Wed, 30 Sep 2009 23:39:27 +0000 (16:39 -0700)
commit298bf12ddb25841804f26234a43b89da1b1c0e21
tree9a381edac05354fcc7750feb6b30335cd2938726tree | snapshot (tar.bz2 tar.gz zip)
parentd99927f4d93f36553699573b279e0ff98ad7dea6commit | diff
sit: fix off-by-one in ipip6_tunnel_get_prl

When requesting all prl entries (kprl.addr == INADDR_ANY) and there are
more prl entries than there is space passed from userspace, the existing
code would always copy cmax+1 entries, which is more than can be handled.

This patch makes the kernel copy only exactly cmax entries.

Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de>
Acked-By: Fred L. Templin <Fred.L.Templin@boeing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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