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NFSv4: Fix a bug in nfs4_validate_mount_data() 

The previous patch introduced a bug when copying the server address.

Also clarify a copy into the auth_flavours array: currently the two
size calculations are equivalent, but we may decide to change the size
of auth_flavors[] at some point.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2007-09-20 20:23:51 -04:00
parent 91ea40b9c6
commit 20c71f5e0f
1 changed files with 3 additions and 3 deletions
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6
fs/nfs/super.c
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@ -1541,7 +1541,7 @@ static int nfs4_validate_mount_data(void *options,
goto out_no_address; goto out_no_address;
if (copy_from_user(&args->nfs_server.address, if (copy_from_user(&args->nfs_server.address,
data->host_addr, data->host_addr,
sizeof(&args->nfs_server.address))) sizeof(args->nfs_server.address)))
return -EFAULT; return -EFAULT;
if (args->nfs_server.address.sin_port == 0) if (args->nfs_server.address.sin_port == 0)
args->nfs_server.address.sin_port = htons(NFS_PORT); args->nfs_server.address.sin_port = htons(NFS_PORT);
@ -1554,9 +1554,9 @@ static int nfs4_validate_mount_data(void *options,
args->auth_flavors[0] = RPC_AUTH_UNIX; args->auth_flavors[0] = RPC_AUTH_UNIX;
break; break;
case 1: case 1:
if (copy_from_user(args->auth_flavors, if (copy_from_user(&args->auth_flavors[0],
data->auth_flavours, data->auth_flavours,
sizeof(args->auth_flavors))) sizeof(args->auth_flavors[0])))
return -EFAULT; return -EFAULT;
break; break;
default: default: