From mboxrd@z Thu Jan 1 00:00:00 1970 From: Al Viro Subject: [PATCH] fix an endianness bug in ext4_encrypted_follow_link() Date: Thu, 26 Nov 2015 15:27:28 +0000 Message-ID: <20151126152728.GT22011@ZenIV.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org To: Theodore Ts'o Return-path: Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org applying le32_to_cpu() to 16bit value is a bad idea... Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Al Viro --- diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c index abe2401..e8e7af6 100644 --- a/fs/ext4/symlink.c +++ b/fs/ext4/symlink.c @@ -52,7 +52,7 @@ static const char *ext4_encrypted_follow_link(struct dentry *dentry, void **cook /* Symlink is encrypted */ sd = (struct ext4_encrypted_symlink_data *)caddr; cstr.name = sd->encrypted_path; - cstr.len = le32_to_cpu(sd->len); + cstr.len = le16_to_cpu(sd->len); if ((cstr.len + sizeof(struct ext4_encrypted_symlink_data) - 1) > max_size) {