diff options
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 70ca79e4bdc3..0a28cb5ded2a 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -980,6 +980,14 @@ static int dlm_match_regions(struct dlm_ctxt *dlm, goto bail; } + if (qr->qr_numregions > O2NM_MAX_REGIONS) { + mlog(ML_ERROR, "Domain %s: Joining node %d has invalid " + "number of heartbeat regions %u\n", + qr->qr_domain, qr->qr_node, qr->qr_numregions); + status = -EINVAL; + goto bail; + } + r = remote; for (i = 0; i < qr->qr_numregions; ++i) { mlog(0, "Region %.*s\n", O2HB_MAX_REGION_NAME_LEN, r); |