github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 01:53:29 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: Use nlmsg_payload in neighbour file

Browse Source 
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/20250417-nlmsg_v3-v1-1-9b09d9d7e61d@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Breno Leitao 2025-04-17 06:03:07 -07:00 committed by Jakub Kicinski
parent 199561a48f
commit 9929ba1942
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/core/neighbour.c
View File

@ -2747,12 +2747,12 @@ static int neigh_valid_dump_req(const struct nlmsghdr *nlh,
if (strict_check) {
struct ndmsg *ndm;
if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ndm))) {
ndm = nlmsg_payload(nlh, sizeof(*ndm));
if (!ndm) {
NL_SET_ERR_MSG(extack, "Invalid header for neighbor dump request");
return -EINVAL;
}
ndm = nlmsg_data(nlh);
if (ndm->ndm_pad1 || ndm->ndm_pad2 || ndm->ndm_ifindex ||
ndm->ndm_state || ndm->ndm_type) {
NL_SET_ERR_MSG(extack, "Invalid values in header for neighbor dump request");