diff options
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index cd55af9b7cc5..e31cdd493e1b 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1402,15 +1402,10 @@ smb2_ioctl_query_info(const unsigned int xid, if (smb3_encryption_required(tcon)) flags |= CIFS_TRANSFORM_REQ; - buffer = kmalloc(qi.output_buffer_length, GFP_KERNEL); - if (buffer == NULL) - return -ENOMEM; - - if (copy_from_user(buffer, arg + sizeof(struct smb_query_info), - qi.output_buffer_length)) { - rc = -EFAULT; - goto iqinf_exit; - } + buffer = memdup_user(arg + sizeof(struct smb_query_info), + qi.output_buffer_length); + if (IS_ERR(buffer)) + return PTR_ERR(buffer); /* Open */ memset(&open_iov, 0, sizeof(open_iov)); |