linux-kernel - Re: [syzbot] Re: [syzbot] [net?] KMSAN: uninit-value in hsr_get

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Message-ID: <000000000000f33668061dab9e7b@google.com>
Date: Sat, 20 Jul 2024 03:53:23 -0700
From: syzbot <syzbot+a81f2759d022496b40ab@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [net?] KMSAN: uninit-value in hsr_get_node (3)

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Subject: Re: [syzbot] [net?] KMSAN: uninit-value in hsr_get_node (3)
Author: aha310510@...il.com

#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

---
 net/hsr/hsr_framereg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 73bc6f659812..ee388739f1f3 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -154,7 +154,7 @@ void prp_handle_san_frame(bool san, enum hsr_port_type port,
 static struct hsr_node *hsr_add_node(struct hsr_priv *hsr,
 				     struct list_head *node_db,
 				     unsigned char addr[],
-				     u16 seq_out, bool san,
+				     int seq_out, bool san,
 				     enum hsr_port_type rx_port)
 {
 	struct hsr_node *new_node, *node;
@@ -219,7 +219,7 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
 	struct ethhdr *ethhdr;
 	struct prp_rct *rct;
 	bool san = false;
-	u16 seq_out;
+	int seq_out;
 
 	if (!skb_mac_header_was_set(skb))
 		return NULL;
--