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ext4: fix an endianness bug in ext4_encrypted_follow_link() 

applying le32_to_cpu() to 16bit value is a bad idea...
    
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Al Viro 2015-11-26 15:20:50 -05:00 committed by Theodore Ts'o
parent e2c9e0b28e
commit 5a1c7f47da
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/symlink.c
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@ -52,7 +52,7 @@ static const char *ext4_encrypted_follow_link(struct dentry *dentry, void **cook
/* Symlink is encrypted */ /* Symlink is encrypted */
sd = (struct ext4_encrypted_symlink_data *)caddr; sd = (struct ext4_encrypted_symlink_data *)caddr;
cstr.name = sd->encrypted_path; cstr.name = sd->encrypted_path;
cstr.len = le32_to_cpu(sd->len); cstr.len = le16_to_cpu(sd->len);
if ((cstr.len + if ((cstr.len +
sizeof(struct ext4_encrypted_symlink_data) - 1) > sizeof(struct ext4_encrypted_symlink_data) - 1) >
max_size) { max_size) {