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authorSasha Levin <sasha.levin@oracle.com>2014-03-06 16:53:11 -0500
committerDavid S. Miller <davem@davemloft.net>2014-03-06 17:06:17 -0500
commit5bd4e4c158ceb4e76ce9ed005c876d59caad8af2 (patch)
treef86025147af2f0f35b6210bd1c668c9c24a943f7 /drivers/net/bonding/bond_options.c
parentd2d273ffabd315eecefce21a4391d44b6e156b73 (diff)
bonding: correctly handle out of range parameters for lp_interval
We didn't correctly check cases where the value for lp_interval is not within the legal range due to a missing table terminator. This would let userspace trigger a kernel panic by specifying a value out of range: echo -1 > /sys/devices/virtual/net/bond0/bonding/lp_interval Introduced by commit 4325b374f84 ("bonding: convert lp_interval to use the new option API"). Acked-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_options.c')
-rw-r--r--drivers/net/bonding/bond_options.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index c37878432717..298c26509095 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -121,6 +121,7 @@ static struct bond_opt_value bond_resend_igmp_tbl[] = {
static struct bond_opt_value bond_lp_interval_tbl[] = {
{ "minval", 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
{ "maxval", INT_MAX, BOND_VALFLAG_MAX},
+ { NULL, -1, 0},
};
static struct bond_option bond_opts[] = {