git: e249f5daa41f - main - pf: fix memory leak on rule add parse failure

The branch main has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=e249f5daa41f73eb293490ed93d06d1fefa08d82

commit e249f5daa41f73eb293490ed93d06d1fefa08d82
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2023-12-11 19:43:20 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2023-12-11 19:53:00 +0000

    pf: fix memory leak on rule add parse failure
    
    Reported by:    Igor Ostapenko <pm@igoro.pro>
    Reviewed by:    Igor Ostapenko <pm@igoro.pro>
    Sponsored by:   Rubicon Communications, LLC ("Netgate")
---
 sys/netpfil/pf/pf_nl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sys/netpfil/pf/pf_nl.c b/sys/netpfil/pf/pf_nl.c
index 86cc5ba9cc91..67a7392ae448 100644
--- a/sys/netpfil/pf/pf_nl.c
+++ b/sys/netpfil/pf/pf_nl.c
@@ -625,8 +625,10 @@ pf_handle_addrule(struct nlmsghdr *hdr, struct nl_pstate *npt)
 	attrs.rule = pf_krule_alloc();
 
 	error = nl_parse_nlmsg(hdr, &addrule_parser, npt, &attrs);
-	if (error != 0)
+	if (error != 0) {
+		pf_free_rule(attrs.rule);
 		return (error);
+	}
 
 	error = pf_ioctl_addrule(attrs.rule, attrs.ticket, attrs.pool_ticket,
 	    attrs.anchor, attrs.anchor_call, nlp_get_cred(npt->nlp)->cr_uid,