From: Edward Adam Davis <eadavis@qq.com>
To: syzbot+d8f76778263ab65c2b21@syzkaller.appspotmail.com
Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [rdma] general protection fault in kernel_sock_shutdown (4)
Date: Thu, 7 May 2026 18:12:48 +0800 [thread overview]
Message-ID: <tencent_39DEEED44CA2A7C206CD52DBC678499EAE06@qq.com> (raw)
In-Reply-To: <69fc0c7c.a00a0220.387fc1.0006.GAE@google.com>
#syz test
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 96c745d5bac4..3cb3cb7629fe 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -1816,6 +1816,8 @@ static int nldev_newlink(struct sk_buff *skb, struct nlmsghdr *nlh,
return err;
}
+static DEFINE_MUTEX(nldev_dellink_mutex);
+
static int nldev_dellink(struct sk_buff *skb, struct nlmsghdr *nlh,
struct netlink_ext_ack *extack)
{
@@ -1846,7 +1848,9 @@ static int nldev_dellink(struct sk_buff *skb, struct nlmsghdr *nlh,
* implicitly scoped to the driver supporting dynamic link deletion like RXE.
*/
if (device->link_ops && device->link_ops->dellink) {
+ mutex_lock(&nldev_dellink_mutex);
err = device->link_ops->dellink(device);
+ mutex_unlock(&nldev_dellink_mutex);
if (err)
return err;
}
next prev parent reply other threads:[~2026-05-07 10:14 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-23 15:01 [syzbot] [net?] general protection fault in kernel_sock_shutdown (4) syzbot
2026-04-23 17:41 ` Jakub Kicinski
2026-04-24 16:47 ` Arjan van de Ven
2026-04-24 18:08 ` Arjan van de Ven
2026-04-25 1:12 ` Arjan van de Ven
2026-04-25 1:14 ` Kuniyuki Iwashima
2026-05-06 13:48 ` [syzbot] [rdma] " syzbot
2026-05-06 14:28 ` Zhu Yanjun
2026-05-06 15:19 ` Kuniyuki Iwashima
2026-05-07 1:30 ` Hillf Danton
2026-05-07 1:57 ` syzbot
2026-05-07 3:52 ` syzbot
2026-05-07 10:12 ` Edward Adam Davis [this message]
2026-05-07 12:02 ` syzbot
2026-05-07 12:50 ` [PATCH] RDMA/nldev: add mutual exclusion in nldev_dellink() Edward Adam Davis
2026-05-07 13:25 ` Zhu Yanjun
2026-05-07 13:40 ` Edward Adam Davis
2026-05-07 14:11 ` Zhu Yanjun
2026-05-13 18:17 ` Leon Romanovsky
2026-05-13 23:46 ` Jason Gunthorpe
2026-05-14 7:31 ` Edward Adam Davis
2026-05-14 11:50 ` Jason Gunthorpe
2026-05-14 13:58 ` David Ahern
2026-05-14 14:14 ` Jason Gunthorpe
2026-05-14 14:26 ` David Ahern
2026-05-14 15:46 ` Zhu Yanjun
2026-05-14 5:15 ` [syzbot] [rdma] general protection fault in kernel_sock_shutdown (4) Zhu Yanjun
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