diff options
| author | Breno Leitao <leitao@debian.org> | 2025-04-14 06:24:12 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-04-15 08:28:54 -0700 |
| commit | e87187dfbb9f7f599da33603984a18adb07f0174 (patch) | |
| tree | 29ae29ad4bfb5a3d6bfc620a5d361975c771d030 | |
| parent | 72be72bea9dc8641c9f39c0335b71b9fbea0fae5 (diff) | |
ipv6: Use nlmsg_payload in inet6_valid_dump_ifaddr_req
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/20250414-nlmsg-v2-6-3d90cb42c6af@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/ipv6/addrconf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 9ba83f0c9928..a9aeb949d9c8 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -5346,12 +5346,12 @@ static int inet6_valid_dump_ifaddr_req(const struct nlmsghdr *nlh, struct ifaddrmsg *ifm; int err, i; - if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifm))) { + ifm = nlmsg_payload(nlh, sizeof(*ifm)); + if (!ifm) { NL_SET_ERR_MSG_MOD(extack, "Invalid header for address dump request"); return -EINVAL; } - ifm = nlmsg_data(nlh); if (ifm->ifa_prefixlen || ifm->ifa_flags || ifm->ifa_scope) { NL_SET_ERR_MSG_MOD(extack, "Invalid values in header for address dump request"); return -EINVAL; |