[LU-9289] Fix fileset string length issue

Sat, 3 Jun 2017 04:28:33 +0000

Patch http://review.whamcloud.com/21857 added this code in nodemap_fileset_seq_write():

	OBD_ALLOC(nm_fileset, count);
	if (nm_fileset == NULL)
		RETURN(-ENOMEM);

	if (copy_from_user(nm_fileset, buffer, count))
		GOTO(out, rc = -EFAULT);

'count' is the length of the string to write. So it is necessary to allocate count+1 for nm_fileset in order to add a '\0' after copy_from_user().

Whamcloud Community JIRA

[LU-9289] Fix fileset string length issue