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-rw-r--r--net/core/fib_rules.c8
-rw-r--r--net/core/rtnetlink.c9
-rw-r--r--net/decnet/dn_rules.c2
-rw-r--r--net/ipv4/devinet.c2
-rw-r--r--net/ipv4/fib_frontend.c2
-rw-r--r--net/ipv4/fib_rules.c2
-rw-r--r--net/ipv6/fib6_rules.c6
-rw-r--r--net/ipv6/route.c2
-rw-r--r--net/netlink/genetlink.c10
9 files changed, 17 insertions, 26 deletions
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 7b2e9bb1a605..a99d87d82b7f 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -161,9 +161,6 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
if (err < 0)
goto errout;
- if (tb[FRA_IFNAME] && nla_len(tb[FRA_IFNAME]) > IFNAMSIZ)
- goto errout;
-
rule = kzalloc(ops->rule_size, GFP_KERNEL);
if (rule == NULL) {
err = -ENOMEM;
@@ -177,10 +174,7 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
struct net_device *dev;
rule->ifindex = -1;
- if (nla_strlcpy(rule->ifname, tb[FRA_IFNAME],
- IFNAMSIZ) >= IFNAMSIZ)
- goto errout_free;
-
+ nla_strlcpy(rule->ifname, tb[FRA_IFNAME], IFNAMSIZ);
dev = __dev_get_by_name(rule->ifname);
if (dev)
rule->ifindex = dev->ifindex;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 8f225499e32e..0ebcf8488e99 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -371,8 +371,8 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
}
static struct nla_policy ifla_policy[IFLA_MAX+1] __read_mostly = {
- [IFLA_IFNAME] = { .type = NLA_STRING },
- [IFLA_MAP] = { .minlen = sizeof(struct rtnl_link_ifmap) },
+ [IFLA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ-1 },
+ [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
[IFLA_MTU] = { .type = NLA_U32 },
[IFLA_TXQLEN] = { .type = NLA_U32 },
[IFLA_WEIGHT] = { .type = NLA_U32 },
@@ -392,9 +392,8 @@ static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
if (err < 0)
goto errout;
- if (tb[IFLA_IFNAME] &&
- nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ) >= IFNAMSIZ)
- return -EINVAL;
+ if (tb[IFLA_IFNAME])
+ nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
err = -EINVAL;
ifm = nlmsg_data(nlh);
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 63ad63dfd252..3e0c882c90bf 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -112,7 +112,7 @@ errout:
}
static struct nla_policy dn_fib_rule_policy[FRA_MAX+1] __read_mostly = {
- [FRA_IFNAME] = { .type = NLA_STRING },
+ [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
[FRA_PRIORITY] = { .type = NLA_U32 },
[FRA_SRC] = { .type = NLA_U16 },
[FRA_DST] = { .type = NLA_U16 },
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 0487677729cf..8e8d1f17d77a 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -85,7 +85,7 @@ static struct nla_policy ifa_ipv4_policy[IFA_MAX+1] __read_mostly = {
[IFA_ADDRESS] = { .type = NLA_U32 },
[IFA_BROADCAST] = { .type = NLA_U32 },
[IFA_ANYCAST] = { .type = NLA_U32 },
- [IFA_LABEL] = { .type = NLA_STRING },
+ [IFA_LABEL] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
};
static void rtmsg_ifa(int event, struct in_ifaddr *, struct nlmsghdr *, u32);
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index d0abeab16e66..cfb527c060e4 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -462,7 +462,7 @@ struct nla_policy rtm_ipv4_policy[RTA_MAX+1] __read_mostly = {
[RTA_PRIORITY] = { .type = NLA_U32 },
[RTA_PREFSRC] = { .type = NLA_U32 },
[RTA_METRICS] = { .type = NLA_NESTED },
- [RTA_MULTIPATH] = { .minlen = sizeof(struct rtnexthop) },
+ [RTA_MULTIPATH] = { .len = sizeof(struct rtnexthop) },
[RTA_PROTOINFO] = { .type = NLA_U32 },
[RTA_FLOW] = { .type = NLA_U32 },
[RTA_MP_ALGO] = { .type = NLA_U32 },
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 280f424ca9c9..52b2adae4f22 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -179,7 +179,7 @@ static struct fib_table *fib_empty_table(void)
}
static struct nla_policy fib4_rule_policy[FRA_MAX+1] __read_mostly = {
- [FRA_IFNAME] = { .type = NLA_STRING },
+ [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
[FRA_PRIORITY] = { .type = NLA_U32 },
[FRA_SRC] = { .type = NLA_U32 },
[FRA_DST] = { .type = NLA_U32 },
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 2fbc71d90187..34f5bfaddfc2 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -137,10 +137,10 @@ static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
}
static struct nla_policy fib6_rule_policy[FRA_MAX+1] __read_mostly = {
- [FRA_IFNAME] = { .type = NLA_STRING },
+ [FRA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ - 1 },
[FRA_PRIORITY] = { .type = NLA_U32 },
- [FRA_SRC] = { .minlen = sizeof(struct in6_addr) },
- [FRA_DST] = { .minlen = sizeof(struct in6_addr) },
+ [FRA_SRC] = { .len = sizeof(struct in6_addr) },
+ [FRA_DST] = { .len = sizeof(struct in6_addr) },
[FRA_FWMARK] = { .type = NLA_U32 },
[FRA_FWMASK] = { .type = NLA_U32 },
[FRA_TABLE] = { .type = NLA_U32 },
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index ba1b3d11865e..75f4bb9611ce 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1865,7 +1865,7 @@ void rt6_mtu_change(struct net_device *dev, unsigned mtu)
}
static struct nla_policy rtm_ipv6_policy[RTA_MAX+1] __read_mostly = {
- [RTA_GATEWAY] = { .minlen = sizeof(struct in6_addr) },
+ [RTA_GATEWAY] = { .len = sizeof(struct in6_addr) },
[RTA_OIF] = { .type = NLA_U32 },
[RTA_IIF] = { .type = NLA_U32 },
[RTA_PRIORITY] = { .type = NLA_U32 },
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index d32599116c56..3ac942cdb677 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -455,7 +455,8 @@ static struct sk_buff *ctrl_build_msg(struct genl_family *family, u32 pid,
static struct nla_policy ctrl_policy[CTRL_ATTR_MAX+1] __read_mostly = {
[CTRL_ATTR_FAMILY_ID] = { .type = NLA_U16 },
- [CTRL_ATTR_FAMILY_NAME] = { .type = NLA_STRING },
+ [CTRL_ATTR_FAMILY_NAME] = { .type = NLA_NUL_STRING,
+ .len = GENL_NAMSIZ - 1 },
};
static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
@@ -470,12 +471,9 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
}
if (info->attrs[CTRL_ATTR_FAMILY_NAME]) {
- char name[GENL_NAMSIZ];
-
- if (nla_strlcpy(name, info->attrs[CTRL_ATTR_FAMILY_NAME],
- GENL_NAMSIZ) >= GENL_NAMSIZ)
- goto errout;
+ char *name;
+ name = nla_data(info->attrs[CTRL_ATTR_FAMILY_NAME]);
res = genl_family_find_byname(name);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 21:24:05 +0000