From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 D2BD7A939 for ; Tue, 12 Mar 2024 13:52:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710251534; cv=none; b=Cip3G2e3cCG/nFMOa9Hc1UW8ifEYsPOhqIB5dDGhYZeEv8FXU8eA7SQ5Lba0E6ChoTarhK+PCkKVFFXJcbxfawHJ9eE6/q/PeUAwOvsbBsvqwvHJIuz0fLG4oBs8Oa3V3go2BZ9m9YxthmqXNNYdOyWVSqve9VwOSKe85nIkB+w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710251534; c=relaxed/simple; bh=CcFRwB322LGtp0dNZVWDbfFecbOY4MMxCdh537eoH8I=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=gJyy7rV6G6+FNsE9ENNESQfnzqGPPOHqUYtZR6ZJsFFP82cjDSinJflD4UnrgsHrr0IxlmtICFPyS2jOhWEZL+gXy6VfGu3x48ogsJClMm4eqIs4keMtsCc2wuAqjpbnQF6QpJsQ7aFh6BtEIJZSNvTMD6Ehz97g/1gTg2pyIJ0= 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=209.85.166.72 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-f72.google.com with SMTP id ca18e2360f4ac-7c8a98e52b5so259603139f.1 for ; Tue, 12 Mar 2024 06:52:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710251532; x=1710856332; 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=YVL6n7u9irY/XXq0R9kO5Vk3K/+z7RkaEdKNYOOG1vg=; b=ZElQNigv0P/iXONsdsXOwrVLrwOeDFOpLWy/OdwABWkBfHsSUAOjhl4EU2C1cmOjWb RB0HuwpY7OKHX3MZrOvYdN+8fPHcEKEY8FbUwrdpu4JjEsRGymyhXRKoDdYc/NNhSFC2 absDJkpmBlHCGvR0sRGHjwMpqPHa5EVAcmaW0vsvWYdL7wWTooNcTZXhy83LoEa+TFQm 3F3SzfFl0R1YFzSL7K5sdFvAzk0gTHD7fyRV2Ykf8VGI6ThrWK3T63WUyWvd8szpo4w9 bY3lWqucpg/0s4hjixxPNHdiot1iH0GHS8EPOMG9DUaB0s6z1nZpH4BleOnNcSGTPgD9 QKNg== X-Gm-Message-State: AOJu0YyJETbS79WHqFPKfM2/Z6ALmkMS4rK7qgTC0rqDbPkEQcjssYfc d69zWcghNGcMr0IoXkmeoHZwMvOjn7KSs5gto35W2vIvmRY9G/zegt1D6HqjhiBtkIYPASgWyGu 8eD7+WdUoK1rKmwlv4aZCRubBlKXoDaEaiaq0eFJm5g9adtfjkQtuLK9ZSQ== X-Google-Smtp-Source: AGHT+IFj6zvgQMmt7pPppEul0jueKmLFCEcfbL1/JWEXUk2aLZZ5Y2sRsGIxss7knhblobl7rpwXV8IFyf6eXaujhO6HOgNBEhsA Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:1393:b0:476:f2cb:8790 with SMTP id w19-20020a056638139300b00476f2cb8790mr138138jad.0.1710251532095; Tue, 12 Mar 2024 06:52:12 -0700 (PDT) Date: Tue, 12 Mar 2024 06:52:12 -0700 In-Reply-To: <0000000000001663ea060ee476ea@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000c23d0061376f73e@google.com> Subject: Re: [syzbot] Test for 2ef3a8ce8e91b5a50098 From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Test for 2ef3a8ce8e91b5a50098 Author: syoshida@redhat.com #syz test diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 6d14d935ee82..b983232e25cb 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -228,6 +228,9 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db, */ if (ethhdr->h_proto == htons(ETH_P_PRP) || ethhdr->h_proto == htons(ETH_P_HSR)) { + if (skb->mac_len < sizeof(struct hsr_ethhdr)) + return NULL; + /* Use the existing sequence_nr from the tag as starting point * for filtering duplicate frames. */