git: 0361497268a5 - stable/15 - rtadvd: Fix validation of the MTU parameter when parsing config

The branch stable/15 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=0361497268a51c565ff335f102690dd8ccad4546

commit 0361497268a51c565ff335f102690dd8ccad4546
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2026-04-01 12:14:24 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-04-13 02:53:05 +0000

    rtadvd: Fix validation of the MTU parameter when parsing config
    
    MFC after:      1 week
    
    (cherry picked from commit 607f6be6ec19f49ff595226afe1c8aa6515c59a0)
---
 usr.sbin/rtadvd/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/rtadvd/config.c b/usr.sbin/rtadvd/config.c
index 1b37d53c8b91..628ca3be886f 100644
--- a/usr.sbin/rtadvd/config.c
+++ b/usr.sbin/rtadvd/config.c
@@ -613,7 +613,7 @@ getconfig_free_pfx:
 		get_prefix(rai);
 
 	MAYHAVE(val64, "mtu", 0);
-	if (val < 0 || val64 > 0xffffffff) {
+	if (val64 < 0 || val64 > 0xffffffff) {
 		syslog(LOG_ERR,
 		    "<%s> mtu (%" PRIu64 ") on %s out of range",
 		    __func__, val64, ifi->ifi_ifname);