From nobody Tue Dec 2 02:49:44 2025 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 AB97C34F490 for ; Tue, 18 Nov 2025 12:37:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763469435; cv=none; b=jmFCQ6Pv2u8/2hnvC8Huogc5WWEex11/L3cEXrHbYMDDB2S6F2EKfoS84TTn8qb9qW7ieUxNOj52A8e1jEuj58sZyMVxg6C3+yu5gH+ZzPv+KqdLNkbj76Ok1qUA8yBSQObkxVYu7OEIjwlXgq/Oqx78sxXWLkKT5uZDzUOaFnE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763469435; c=relaxed/simple; bh=crdvGVkVlpGtuugVDY+g+63gUlrCFImIJeYNcW/Q3bU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=SbnqjXcEiIU25TY+64VdsaEN5vniAdF4ZSe7XhiwB/oOViZLYPQmHICju7TbBjdZkABmHaLxfYKA0OcxQGBTKTp1QgVh+iU9lP1YtuOefWw5lz59tmx/bcLCh85HUqB/WiTQKDVQoaYjryOgO2g8ff3YHS19CCJSyGihR/nHDd0= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-4337e902d2bso50560065ab.3 for ; Tue, 18 Nov 2025 04:37:13 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763469433; x=1764074233; 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=40YvqPP0e+ldEqwd7eCaUn/pkeEOBxELFBY2AKbbWE8=; b=ij9MiniyOP4L/hOFLKIjD/kt4QQdeN/HIq0SIo/d3rrH3+NmZ35R0Orxxh4YSyKbOf 1IKFcuAVtVcgtuqxRQLl2pwph2TwyMSVyJbSMo+aH8zTseJ1pBTgEiDbphagVUsTtGA5 T7Jj+Gz34k6caH/C3qRWPzon0i5rYGPgPoz9rYnLsX/nzEf3qsd79YXCKCg5QwU8RQbz mfaXNVf/npqDblEfDkbIoRPR+nCBql90kQQ94m2FO4QFMZZ89NWVagIS6SlxSUkmXyvm LZEnoeTNtsHJdclxK/N9iy2cen98Cin6lsyTCHbhd3pL3kKWH9hlbQK6Yy6fwU/ncUi/ 6j/Q== X-Gm-Message-State: AOJu0YwSg8yqjVtlfaYfx1qGoP0KsG/DvJ9l9u5h/waAUl3Db3pQc+gv 3HnF8tqvyFyDjTp89kNfVOZTFPQutzNN9LweNofuG90j+FZhj3XupJWLqHhjIRIzxCPz0U5hhh8 7iPDZT8e+UMliM1FBH2jMCkAkDPhpfDHY+3eNYpbaGwLe2R/Or7ayVFIhrM4= X-Google-Smtp-Source: AGHT+IF29TQ2l/0yDZAv4Ny5Gg6HEubYX5p/10O8oCF8ko7pWuEIYOdpsVD15yJjKuqeCyyYzP0zRS7I4iKF2N9V83t+9402ONML Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:188f:b0:432:f3b:a809 with SMTP id e9e14a558f8ab-4348c94e420mr195232635ab.26.1763469432826; Tue, 18 Nov 2025 04:37:12 -0800 (PST) Date: Tue, 18 Nov 2025 04:37:12 -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: <691c6878.a70a0220.3124cb.00c5.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..ecfafb363a99 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); + skb_put_zero(skb, BUF_OVERHEAD + size); skb->next =3D NULL; } return skb;