Message ID | 20201118075609.120337-3-ebiggers@kernel.org |
---|---|
State | Not Applicable |
Headers | show
Return-Path: <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2001:8b0:10b:1231::1; helo=merlin.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=merlin.20170209 header.b=JG8e15aB; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=default header.b=c7cLjJHQ; dkim-atps=neutral Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CbZtt0pmKz9s1l for <incoming@patchwork.ozlabs.org>; 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Wed, 18 Nov 2020 07:57:48 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kfILV-0002jJ-2K for linux-mtd@lists.infradead.org; Wed, 18 Nov 2020 07:57:42 +0000 Received: from sol.attlocal.net (172-10-235-113.lightspeed.sntcca.sbcglobal.net [172.10.235.113]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2419920B80; Wed, 18 Nov 2020 07:57:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1605686260; bh=3OsEYdcS4OXEC4S/G7MM1sLUIzE8N1bOkGh+royk33o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c7cLjJHQpC3nSDFO4proY4QRa0P96Ih6le3z/91WWyOKE3Z5PochE5fqjTob041/2 brGZ+WeaJWqgDddJkzN1St9g7Zks55FLOKIMmNgj4ZyafhYDB9odDybtwvl4NrdhlV /e1eD0rWkK/diWMI77ke9p3Nzz9WadhOoZc1xss0= From: Eric Biggers <ebiggers@kernel.org> To: linux-fscrypt@vger.kernel.org Subject: [PATCH 2/5] ext4: prevent creating duplicate encrypted filenames Date: Tue, 17 Nov 2020 23:56:06 -0800 Message-Id: <20201118075609.120337-3-ebiggers@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201118075609.120337-1-ebiggers@kernel.org> References: <20201118075609.120337-1-ebiggers@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201118_025741_240100_3A541311 X-CRM114-Status: GOOD ( 13.18 ) X-Spam-Score: -2.7 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 2.5 SUSPICIOUS_RECIPS Similar addresses in recipient list -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.0 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list <linux-mtd.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-mtd/> List-Post: <mailto:linux-mtd@lists.infradead.org> List-Help: <mailto:linux-mtd-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>, <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe> Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-mtd@lists.infradead.org, stable@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; 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Series |
fscrypt: prevent creating duplicate encrypted filenames
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diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 33509266f5a0..793fc7db9d28 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2195,6 +2195,9 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, if (!dentry->d_name.len) return -EINVAL; + if (fscrypt_is_nokey_name(dentry)) + return -ENOKEY; + #ifdef CONFIG_UNICODE if (sb_has_strict_encoding(sb) && IS_CASEFOLDED(dir) && sb->s_encoding && utf8_validate(sb->s_encoding, &dentry->d_name))