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| author | Dan Carpenter <error27@gmail.com> | 2010-05-26 00:38:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-26 00:38:56 -0700 |
| commit | ed0f160ad674407adb3aba499444f71c83289c63 (patch) | |
| tree | 39cff780164f55d6cda23018431ab553c4477f9e /net/ipv4/ipmr.c | |
| parent | d938a702e5ce8909ea68be97566150507bfea4df (diff) | |
| download | op-kernel-dev-ed0f160ad674407adb3aba499444f71c83289c63.zip op-kernel-dev-ed0f160ad674407adb3aba499444f71c83289c63.tar.gz | |
ipmr: off by one in __ipmr_fill_mroute()
This fixes a smatch warning:
net/ipv4/ipmr.c +1917 __ipmr_fill_mroute(12) error: buffer overflow
'(mrt)->vif_table' 32 <= 32
The ipv6 version had the same issue.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ipmr.c')
| -rw-r--r-- | net/ipv4/ipmr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 4588910..856123f 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1911,7 +1911,7 @@ static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb, struct rtattr *mp_head; /* If cache is unresolved, don't try to parse IIF and OIF */ - if (c->mfc_parent > MAXVIFS) + if (c->mfc_parent >= MAXVIFS) return -ENOENT; if (VIF_EXISTS(mrt, c->mfc_parent)) |
