linux-kernel - [PATCH] fixup! vhost: extend memory regions allocation to vmalloc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 15 Jul 2015 16:48:50 +0200
From:	Igor Mammedov <imammedo@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	dan.carpenter@...cle.com, julia.lawall@...6.fr, mst@...hat.com,
	kvm@...r.kernel.org
Subject: [PATCH] fixup! vhost: extend memory regions allocation to vmalloc

callers of vhost_kvzalloc() expect the same behaviour on
allocation error as from kmalloc/vmalloc i.e. NULL return
value. So just return vzmalloc() returned value instead of
returning ERR_PTR(-ENOMEM)

issue introduced by
  4de7255f7d2be5e51664c6ac6011ffd6e5463571 in vhost-next tree

Spotted-by: Dan Carpenter <dan.carpenter@...cle.com>
Suggested-by: Julia Lawall <julia.lawall@...6.fr>
Signed-off-by: Igor Mammedov <imammedo@...hat.com>
---
 drivers/vhost/vhost.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index a9fe859..3702487 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -683,11 +683,8 @@ static void *vhost_kvzalloc(unsigned long size)
 {
 	void *n = kzalloc(size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
 
-	if (!n) {
+	if (!n)
 		n = vzalloc(size);
-		if (!n)
-			return ERR_PTR(-ENOMEM);
-	}
 	return n;
 }
 
-- 
1.8.3.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/