diff options
| author |   Breno Leitao <leitao@debian.org> | 2025-04-15 12:28:53 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-04-16 18:33:02 -0700 |
| commit | 6c454270a8511280ba5981e57e3bcb3c1408ebfa (patch) | |
| tree | a73101a8879fa049268b17939db87a337607265b | |
| parent | ipv6: Use nlmsg_payload in addrlabel file (diff) | |
| download | wireguard-linux-6c454270a8511280ba5981e57e3bcb3c1408ebfa.tar.xz wireguard-linux-6c454270a8511280ba5981e57e3bcb3c1408ebfa.zip | |
ipv6: Use nlmsg_payload in addrconf 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-v1-2-a1c75d493fd7@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 4af276179542..ec6c4ca6d6d9 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -6112,7 +6112,8 @@ static int inet6_valid_dump_ifinfo(const struct nlmsghdr *nlh, { struct ifinfomsg *ifm; - 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 link dump request"); return -EINVAL; } @@ -6122,7 +6123,6 @@ static int inet6_valid_dump_ifinfo(const struct nlmsghdr *nlh, return -EINVAL; } - ifm = nlmsg_data(nlh); if (ifm->__ifi_pad || ifm->ifi_type || ifm->ifi_flags || ifm->ifi_change || ifm->ifi_index) { NL_SET_ERR_MSG_MOD(extack, "Invalid values in header for dump request"); |