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dlm: don't allow zero length names 

kobject doesn't like zero length object names, so let's test for that.

Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: David Teigland <teigland@redhat.com>
hifive-unleashed-5.1
Tycho Andersen 2018-11-02 14:18:21 -06:00 committed by David Teigland
parent d968b4e240
commit 3f0806d259
1 changed files with 1 additions and 1 deletions
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2
fs/dlm/lockspace.c
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@ -431,7 +431,7 @@ static int new_lockspace(const char *name, const char *cluster,
int do_unreg = 0;
int namelen = strlen(name);
if (namelen > DLM_LOCKSPACE_LEN)
if (namelen > DLM_LOCKSPACE_LEN || namelen == 0)
return -EINVAL;
if (!lvblen || (lvblen % 8))