linux-kernel - Forwarded: [PATCH] net: core: fix KMSAN: unint value in tipc

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Message-ID: <690dc799.a70a0220.22f260.0034.GAE@google.com>
Date: Fri, 07 Nov 2025 02:19:05 -0800
From: syzbot <syzbot+9a4fbb77c9d4aacd3388@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Forwarded: [PATCH] net: core: fix KMSAN: unint value in tipc_rcv

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***

Subject: [PATCH] net: core: fix KMSAN: unint value in tipc_rcv
Author: hariconscious@...il.com

#syz test

diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 76284fc538eb..4c22cce4be30 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -71,6 +71,8 @@ struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp)

        skb = alloc_skb_fclone(BUF_OVERHEAD + size, gfp);
        if (skb) {
+               pr_info("tipc_buf_acquire data len: %d\n", skb->data_len);
+               memset(skb->data, 0, skb->data_len);
                skb_reserve(skb, BUF_HEADROOM);
                skb_put(skb, size);
                skb->next = NULL;