added 2 new lines from upstream source code

Author: durgajagadeesh

SPECS/gnutls/CVE-2026-42009.patch

@@ -7,18 +7,20 @@ Subject: [PATCH] lib/buffers: ensure packets with duplicate sequence but
 
 Signed-off-by: Azure Linux Security Servicing Account <azurelinux-security@microsoft.com>
 Upstream-reference: AI Backport of https://gitlab.com/gnutls/gnutls/-/commit/f01e21441e29052a6f0963840794c41d3b3ee66d.patch https://gitlab.com/gnutls/gnutls/-/commit/f341441fad91142897d83b44a175ffc8f925b76f.patch
+
 ---
- lib/buffers.c | 21 +++++++++++++++------
- 1 file changed, 15 insertions(+), 6 deletions(-)
+ lib/buffers.c | 25 ++++++++++++++++++-------
+ 1 file changed, 18 insertions(+), 7 deletions(-)
 
 diff --git a/lib/buffers.c b/lib/buffers.c
-index f419193..e412915 100644
+index f419193..e41ecde 100644
 --- a/lib/buffers.c
 +++ b/lib/buffers.c
-@@ -845,10 +845,7 @@ static int handshake_compare(const void *_e1, const void *_e2)
+@@ -844,11 +844,7 @@ static int handshake_compare(const void *_e1, const void *_e2)
+ {
  	const handshake_buffer_st *e1 = _e1;
  	const handshake_buffer_st *e2 = _e2;
- 
+-
 -	if (e1->sequence <= e2->sequence)
 -		return 1;
 -	else
@@ -27,14 +29,18 @@ index f419193..e412915 100644
  }
 
  #define SSL2_HEADERS 1
-@@ -967,8 +964,20 @@ static int merge_handshake_packet(gnutls_session_t session,
+@@ -966,9 +962,24 @@ static int merge_handshake_packet(gnutls_session_t session,
+	int exists = 0, i, pos = 0;
  	int ret;
 
++	handshake_buffer_st *recv_buf =
++		session->internals.handshake_recv_buffer;
++
  	for (i = 0; i < session->internals.handshake_recv_buffer_size; i++) {
 -		if (session->internals.handshake_recv_buffer[i].htype ==
 -		    hsk->htype) {
-+		if (session->internals.handshake_recv_buffer[i].sequence == hsk->sequence) {
-+			if (session->internals.handshake_recv_buffer[i].htype != hsk->htype) {
++		if (recv_buf[i].sequence == hsk->sequence) {
++			if (recv_buf[i].htype != hsk->htype) {
 +				_gnutls_audit_log(
 +					session,
 +					"Discarded unexpected handshake packet "
@@ -43,7 +49,7 @@ index f419193..e412915 100644
 +					hsk->sequence,
 +					_gnutls_handshake2str(hsk->htype),
 +					_gnutls_handshake2str(
-+						session->internals.handshake_recv_buffer[i].htype));
++						recv_buf[i].htype));
 +				_gnutls_handshake_buffer_clear(hsk);
 +				return 0;
 +			}