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authorEric Biggers <ebiggers@google.com>2016-09-15 13:13:13 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-10-22 12:40:25 +0200
commit5373f6cc610ba2698ff17122aa81e87013044d8c (patch)
tree7abb044acd70a908d12c263fdc77f3680794c286
parent7a6893875e246fc7d5900e71e45b90b6dc29fcce (diff)
ext4: fix memory leak when symlink decryption fails
commit dcce7a46c6f28f41447272fb44348ead8f584573 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/ext4/symlink.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index 4d83d9e05f2e..04a7850a0d45 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -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';