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ext4: fix memory leak when symlink decryption fails

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This bug was introduced in v4.8-rc1.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
This commit is contained in:
Eric Biggers 2016-09-15 13:13:13 -04:00 committed by Theodore Ts'o
parent f0c9fd5458
commit dcce7a46c6
1 changed files with 1 additions and 2 deletions
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3
fs/ext4/symlink.c
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@ -65,13 +65,12 @@ static const char *ext4_encrypted_get_link(struct dentry *dentry,
res = fscrypt_fname_alloc_buffer(inode, cstr.len, &pstr);
if (res)
goto errout;
paddr = pstr.name;
res = fscrypt_fname_disk_to_usr(inode, 0, 0, &cstr, &pstr);
if (res < 0)
goto errout;
paddr = pstr.name;
/* Null-terminate the name */
if (res <= pstr.len)
paddr[res] = '\0';