From nobody Fri Dec 19 20:47:29 2025 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7EAF9AD2C for ; Fri, 7 Nov 2025 07:15:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762499741; cv=none; b=m8sqp1po2RYvaA7UJ88uL6XspqRY5deXIDPYIbJWDHmGfudSRterALFzHcMqszUF2Uyl7tNwJcxqwDKwTzHFTl1EHZeBfdCROCFYWUnnpv6gYDmVhzghkHILhm8rAWLZL30bd2Wwm3wG6FlpYq2088NrEyoRwFFeO/RiUXlD0Zc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762499741; c=relaxed/simple; bh=at/EXLBGs4QUBOT5qxZNTOkHg2L0CyBMcSnXVNUFW3w=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ev2Z3ETNvSwZXmBmkCXfDJd7fn5LgalEwIonKkI57UOISjcnlfGytEPtDuCI0VvMxWWt88SSp0kn6V7zkSELnndUD/DyITfgPhdkJgsQ9ylaLYNc2+1k6UVOGpnraQxnBuqBUrDRHiVaUjXrHTILCAtUq/Hoypm7Txf9795JjAE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f197.google.com with SMTP id e9e14a558f8ab-43330d77c3aso15720875ab.3 for ; Thu, 06 Nov 2025 23:15:39 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762499738; x=1763104538; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=mZgGhF5BZY37mZyfFH23jjqyuOLg8OjKuJ9MVaLhLnI=; b=dlz0IpjK5SuPFfTkIQgGZkt3e4uN0vjbSDnRsxtoHSgP7uqHiY+9rGz1dnbNIfu+um qUN6JsZpYP7Kuruo/kckravqUL3za0H9IUFOGZb/Kprb9jZahgJl8Yvy2XM2VENiFk4X 1jxnqJlJDfCSX43bVkXDRNcTTBZV301P8kUS0NRd/IABRnlFuVPXIsO/SXx5VRMTA34O voF6r5Eiz+tvJoxGUCjzT6aCQoNjw9GJ0re2bKC9+VfwlAgWs0j5kMbEUd69V8NDJF1F dy6xWGGMWuu8TjqPN5tWM/BxEtwswLZI0J6TjbMnPdl5s4C426rCWXaUFzr3ZvD3ZiVx /oRQ== X-Gm-Message-State: AOJu0YzekaHRWrICVfdFoSkBs7F+xpz9ayq+gv0/1YlXGv3ChWYswINx joiY/gbRRPUlRBEYzufbEHtYyPdk3ZcPouo+yNT8qyOqOf6ruNgBQTtivDfvKLWia535hDN97co JD32bVamHJTCD85MMKYyRIFBIZqnujvi7DaGMp9GNTJeDAak7Nt8MT8l7eps= X-Google-Smtp-Source: AGHT+IEepVdpnIk01GC48r7yPq8BGOXWDyj9Kak2NLBKFXVWO2/uA7R/raSHFW5CPuO92Nw+qYdeef2FSqRDCmfohI1S5QOPbq3O Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3a12:b0:433:575b:9e93 with SMTP id e9e14a558f8ab-4335f48235emr31842315ab.25.1762499738649; Thu, 06 Nov 2025 23:15:38 -0800 (PST) Date: Thu, 06 Nov 2025 23:15:38 -0800 In-Reply-To: <6880f58e.050a0220.248954.0001.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <690d9c9a.a70a0220.22f260.0020.GAE@google.com> Subject: Forwarded: [PATCH] net: core: fix KMSAN: unint value in tipc_rcv From: syzbot To: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [PATCH] net: core: fix KMSAN: unint value in tipc_rcv Author: hariconscious@gmail.com #syz test diff --git a/net/tipc/msg.c b/net/tipc/msg.c index 76284fc538eb..eb50a9e23507 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 =3D alloc_skb_fclone(BUF_OVERHEAD + size, gfp); if (skb) { + pr_info("tipc_buf_acquire\n"); + memset(skb, 0, sizeof(struct sk_buff)); skb_reserve(skb, BUF_HEADROOM); skb_put(skb, size); skb->next =3D NULL;