[COMPAT]: Fix arguments to compat statfs64 syscalls, 'sz' was missing.

diff --git a/fs/compat.c b/fs/compat.c
index 92540b64302abd97e1c254032b88f3fedb16deee..0f9ee2532f741f6dbd303a054f223faf7ac84c9c 100644 (file)
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -169,7 +169,6 @@ out:
 
 static int put_compat_statfs64(struct compat_statfs64 *ubuf, struct kstatfs *kbuf)
 {
-       
        if (sizeof ubuf->f_blocks == 4) {
                if ((kbuf->f_blocks | kbuf->f_bfree |
                     kbuf->f_bavail | kbuf->f_files | kbuf->f_ffree) &
@@ -192,11 +191,14 @@ static int put_compat_statfs64(struct compat_statfs64 *ubuf, struct kstatfs *kbu
        return 0;
 }
 
-asmlinkage long compat_statfs64(const char *path, struct compat_statfs64 *buf)
+asmlinkage long compat_statfs64(const char *path, compat_size_t sz, struct compat_statfs64 *buf)
 {
        struct nameidata nd;
        int error;
 
+       if (sz != sizeof(*buf))
+               return -EINVAL;
+
        error = user_path_walk(path, &nd);
        if (!error) {
                struct kstatfs tmp;
@@ -208,12 +210,15 @@ asmlinkage long compat_statfs64(const char *path, struct compat_statfs64 *buf)
        return error;
 }
 
-asmlinkage long compat_fstatfs64(unsigned int fd, struct compat_statfs64 *buf)
+asmlinkage long compat_fstatfs64(unsigned int fd, compat_size_t sz, struct compat_statfs64 *buf)
 {
        struct file * file;
        struct kstatfs tmp;
        int error;
 
+       if (sz != sizeof(*buf))
+               return -EINVAL;
+
        error = -EBADF;
        file = fget(fd);
        if (!file)