diff options
| author | Breno Leitao <leitao@debian.org> | 2025-04-15 12:28:56 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-04-16 18:33:02 -0700 |
| commit | b411638fb92509a518506cbf0bbce8a8a3bd07fb (patch) | |
| tree | f4ce3e8b64113087983bb0fe7fc13c9b04e05f79 /net/ipv4 | |
| parent | ipv4: Use nlmsg_payload in devinet file (diff) | |
| download | linux-b411638fb92509a518506cbf0bbce8a8a3bd07fb.tar.gz linux-b411638fb92509a518506cbf0bbce8a8a3bd07fb.zip | |
ipv4: Use nlmsg_payload in fib_frontend 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-v1-5-a1c75d493fd7@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 3f4e629998fa..57f088e5540e 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -948,12 +948,12 @@ int ip_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh, if (filter->rtnl_held) ASSERT_RTNL(); - if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*rtm))) { + rtm = nlmsg_payload(nlh, sizeof(*rtm)); + if (!rtm) { NL_SET_ERR_MSG(extack, "Invalid header for FIB dump request"); return -EINVAL; } - rtm = nlmsg_data(nlh); if (rtm->rtm_dst_len || rtm->rtm_src_len || rtm->rtm_tos || rtm->rtm_scope) { NL_SET_ERR_MSG(extack, "Invalid values in header for FIB dump request"); |