net: clear heap allocations for privileged ethtool actions
authorKees Cook <kees.cook@canonical.com>
Mon, 11 Oct 2010 19:23:25 +0000 (12:23 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 11 Oct 2010 19:23:25 +0000 (12:23 -0700)
commitb00916b189d13a615ff05c9242201135992fcda3
treecc5c416e5bc6ba69534ce880cc135364dcb91baa
parent0aa7deadffd8b596983a3abe29a218b4c5f43301
net: clear heap allocations for privileged ethtool actions

Several other ethtool functions leave heap uncleared (potentially) by
drivers. Some interfaces appear safe (eeprom, etc), in that the sizes
are well controlled. In some situations (e.g. unchecked error conditions),
the heap will remain unchanged in areas before copying back to userspace.
Note that these are less of an issue since these all require CAP_NET_ADMIN.

Cc: stable@kernel.org
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/core/ethtool.c