linux-kernel - [PATCH -next] xen/pvcalls: use GFP

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>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 28 Dec 2017 03:46:48 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <stefano@...reto.com>
CC:     Wei Yongjun <weiyongjun1@...wei.com>,
        <xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] xen/pvcalls: use GFP_ATOMIC under spin lock

A spin lock is taken here so we should use GFP_ATOMIC.

Fixes: 9774c6cca266 ("xen/pvcalls: implement accept command")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/xen/pvcalls-front.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c
index 0c1ec68..dfd00d9 100644
--- a/drivers/xen/pvcalls-front.c
+++ b/drivers/xen/pvcalls-front.c
@@ -807,7 +807,7 @@ int pvcalls_front_accept(struct socket *sock, struct socket *newsock, int flags)
 		pvcalls_exit();
 		return ret;
 	}
-	map2 = kzalloc(sizeof(*map2), GFP_KERNEL);
+	map2 = kzalloc(sizeof(*map2), GFP_ATOMIC);
 	if (map2 == NULL) {
 		clear_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
 			  (void *)&map->passive.flags);