From nobody Tue Dec 2 01:05:41 2025 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (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 A498336D4E8 for ; Sat, 22 Nov 2025 03:37:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763782633; cv=none; b=DIrTkypnN8hitl0pr3VeMeZu8pfmSswD/BcGAwrl/K5Uq+5vCKMZpkFi75KihFyySeBxXsCqzngyi6ga7YncNSTcOoCVDyE5FQZdrnVi52g4pedcxMGIidarHmRg5Q7Pwo5RBG0nMVW79EnvKZrJoDVjyWssQp4mf58CHra9A/w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763782633; c=relaxed/simple; bh=n9tPz+rTE2TzUiV9cTmj8iVH7IOIgI4nwR1RToix8ZU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=DjhE3OxkcOCXfRoWD8xpv0+9qx4tdMeIJ9MfollL32qLN6Hi+ckGi5PMa4p7KasGAR4pWJQPnMGzUwE36hcohWU4Cg2AoQn8RIoNtw9WMj7+rfNj/bz+nFokRf66uLokatxeHFX6gfOF1JUG5b6jrSRmRUPPsBS+r7A5KJnNYBM= 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=209.85.166.71 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-io1-f71.google.com with SMTP id ca18e2360f4ac-9486c2da7f6so187048539f.2 for ; Fri, 21 Nov 2025 19:37:11 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763782631; x=1764387431; 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=cNcEZk5ki/OiDwBUP73ce7acDqLknNRFi+WFlMSchp0=; b=r3vJwIbhI3PzRAi7yPBxtLZdczUV1LzUeQ552zvdxl7b66dSy5gpuatkNmsWa6mvAN Fiew4AYCioafZGPgI6TXhOMlVebsdVUwrp9bUZHUMkJDEgwgKdnb8EY+EZ3VKgwUCBnn ptiXCxsOPmf4aA8UK+ajnP+e1QihXS9zMWmZ6fpQU+kGafybW+rUhPqK7sBkKeHPmnZS 7/2/plGHGNT4Z972MOm7r9yRUYcLgZUr/R/SGRdPPhd3gQZT4aKcRSp68tSF0t8cS1qE ojm9wODfIbSHgd3axSMND1T+bQDlTkTqbjsdCrPS1GYhDDHxI/vP19mHGcmHNBPtap0S T7sQ== X-Gm-Message-State: AOJu0YxYyFP4ky7dS9amS11nxUWWvuurIoSIZ/qd7JAvhaJRl9+K02FX jZYbP+ZIXGgPLpmMoQGZue51x0EmD5Ggqcjy0eMdBkZp8ec6WRcbpd1C8VdIpYEryBw2/FTUQNt rHt27edV0qPTowVhFhKg8iVaDtdFN3LzphdB7WqCY7oPyinUANoVf+Ctqo0I= X-Google-Smtp-Source: AGHT+IHO7r1ZDeMVkWnqls0z2vU9fUpVeeIz3zKvdMa1i6Lq9Egj4tf/qX/G3oyNnup2+685wf1r6l7MMO9hBF4k4stEEoDq8OVG Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2186:b0:434:7a8a:3ea with SMTP id e9e14a558f8ab-435b98cfc51mr33358785ab.19.1763782630903; Fri, 21 Nov 2025 19:37:10 -0800 (PST) Date: Fri, 21 Nov 2025 19:37:10 -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: <69212fe6.a70a0220.2ea503.0063.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..1f2a939d341c 100644 --- a/net/tipc/msg.c +++ b/net/tipc/msg.c @@ -73,6 +73,7 @@ struct sk_buff *tipc_buf_acquire(u32 size, gfp_t gfp) if (skb) { skb_reserve(skb, BUF_HEADROOM); skb_put(skb, size); + memset(skb->data, 0, size); skb->next =3D NULL; } return skb;