git: bbe6559cf958 - main - netlink: fix size comparison

The branch main has been updated by glebius:

URL: https://cgit.FreeBSD.org/src/commit/?id=bbe6559cf958a9016cb18ff1833ebd3a884f349f

commit bbe6559cf958a9016cb18ff1833ebd3a884f349f
Author:     Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2025-01-11 04:57:55 +0000
Commit:     Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2025-01-11 04:57:55 +0000

    netlink: fix size comparison
    
    We want to check the size of the header, not a pointer to it.
    
    Reviewed by:            melifaro, markj
    Differential Revision:  https://reviews.freebsd.org/D48309
---
 sys/netlink/netlink_generic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/netlink/netlink_generic.c b/sys/netlink/netlink_generic.c
index 623531492173..b78ab80ab3c2 100644
--- a/sys/netlink/netlink_generic.c
+++ b/sys/netlink/netlink_generic.c
@@ -67,7 +67,8 @@ genl_handle_message(struct nlmsghdr *hdr, struct nl_pstate *npt)
 		return (ENOTSUP);
 	}
 
-	if (__predict_false(hdr->nlmsg_len < sizeof(hdr) + GENL_HDRLEN)) {
+	if (__predict_false(hdr->nlmsg_len < sizeof(struct nlmsghdr) +
+	    GENL_HDRLEN)) {
 		NLP_LOG(LOG_DEBUG, nlp, "invalid message size: %d", hdr->nlmsg_len);
 		return (EINVAL);
 	}