diff options
| author |   Breno Leitao <leitao@debian.org> | 2025-04-15 12:28:54 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-04-16 18:33:02 -0700 |
| commit | bc05add844fc47ab61499d64a1128abf2ff77ea2 (patch) | |
| tree | 01bb711b1ab416f598b836f4d1e1ecb525dbe7b2 | |
| parent | ipv6: Use nlmsg_payload in addrconf file (diff) | |
| download | wireguard-linux-bc05add844fc47ab61499d64a1128abf2ff77ea2.tar.xz wireguard-linux-bc05add844fc47ab61499d64a1128abf2ff77ea2.zip | |
ipv6: Use nlmsg_payload in route file
Leverage the new nlmsg_payload() helper to avoid checking for message
size and then reading the nlmsg data.
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250415-nlmsg_v2-v1-3-a1c75d493fd7@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/ipv6/route.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 210b84cecc24..e2c6c0b0684b 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -6029,7 +6029,8 @@ static int inet6_rtm_valid_getroute_req(struct sk_buff *skb, struct rtmsg *rtm; int i, err; - if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*rtm))) { + rtm = nlmsg_payload(nlh, sizeof(*rtm)); + if (!rtm) { NL_SET_ERR_MSG_MOD(extack, "Invalid header for get route request"); return -EINVAL; @@ -6039,7 +6040,6 @@ static int inet6_rtm_valid_getroute_req(struct sk_buff *skb, return nlmsg_parse_deprecated(nlh, sizeof(*rtm), tb, RTA_MAX, rtm_ipv6_policy, extack); - rtm = nlmsg_data(nlh); if ((rtm->rtm_src_len && rtm->rtm_src_len != 128) || (rtm->rtm_dst_len && rtm->rtm_dst_len != 128) || rtm->rtm_table || rtm->rtm_protocol || rtm->rtm_scope || |