Subject: [patch] SUNRPC: off by one in BUG_ON()

From: Dan Carpenter <[email-masked]>
Date: Wed, 29 Oct 2014 11:44:16 +0300

The m->pool_to[] array has "maxpools" number of elements.  It's
allocated in svc_pool_map_alloc_arrays() which we called earlier in the
function.  This test should be >= instead of >.

Signed-off-by: Dan Carpenter <[email-masked]>
---
This is very old code, but hopefully the off by one doesn't affect
runtime.

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index ca8a795..349c98f 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -189,7 +189,7 @@ svc_pool_map_init_percpu(struct svc_pool_map *m)
 		return err;
 
 	for_each_online_cpu(cpu) {
-		BUG_ON(pidx > maxpools);
+		BUG_ON(pidx >= maxpools);
 		m->to_pool[cpu] = pidx;
 		m->pool_to[pidx] = cpu;
 		pidx++;
--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to [email-masked]
More majordomo info at  http://vger.kernel.org/majordomo-info.html