diff options
| author | Breno Leitao <[email protected]> | 2025-04-14 13:24:09 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-04-15 15:28:54 +0000 |
| commit | 2d1f827f0642261d5c955d3d30b5f997e06ce7a9 (patch) | |
| tree | 96c978e6578647c963c85a58a095ff0904fff48a /net/core/neighbour.c | |
| parent | neighbour: Use nlmsg_payload in neightbl_valid_dump_info (diff) | |
| download | kernel-2d1f827f0642261d5c955d3d30b5f997e06ce7a9.tar.gz kernel-2d1f827f0642261d5c955d3d30b5f997e06ce7a9.zip | |
neighbour: Use nlmsg_payload in neigh_valid_get_req
Update neigh_valid_get_req function to utilize the new nlmsg_payload()
helper function.
This change improves code clarity and safety by ensuring that the
Netlink message payload is properly validated before accessing its data.
Signed-off-by: Breno Leitao <[email protected]>
Reviewed-by: Kuniyuki Iwashima <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/core/neighbour.c')
| -rw-r--r-- | net/core/neighbour.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index b6bc4836c6e4..65cf582b5dac 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -2855,12 +2855,12 @@ static int neigh_valid_get_req(const struct nlmsghdr *nlh, struct ndmsg *ndm; int err, i; - 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 get request"); return -EINVAL; } - ndm = nlmsg_data(nlh); if (ndm->ndm_pad1 || ndm->ndm_pad2 || ndm->ndm_state || ndm->ndm_type) { NL_SET_ERR_MSG(extack, "Invalid values in header for neighbor get request"); |