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* [PATCH v1] Bug fix for issue found by kernel test robot
@ 2023-10-10 21:35 Anjali Kulkarni
  2023-10-11  0:53 ` Jakub Kicinski
  0 siblings, 1 reply; 3+ messages in thread
From: Anjali Kulkarni @ 2023-10-10 21:35 UTC (permalink / raw)
  To: linux-kernel
  Cc: davem, Liam.Howlett, netdev, oliver.sang, kuba, anjali.k.kulkarni

cn_netlink_send_mult() should be called with filter & filter_data only
for EXIT case. For all other events, filter & filter_data should be
NULL.

Signed-off-by: Anjali Kulkarni <anjali.k.kulkarni@oracle.com>
---
 drivers/connector/cn_proc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 05d562e9c8b1..01e17f18d187 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -104,13 +104,13 @@ static inline void send_msg(struct cn_msg *msg)
 	if (filter_data[0] == PROC_EVENT_EXIT) {
 		filter_data[1] =
 		((struct proc_event *)msg->data)->event_data.exit.exit_code;
+		cn_netlink_send_mult(msg, msg->len, 0, CN_IDX_PROC, GFP_NOWAIT,
+				     cn_filter, (void *)filter_data);
 	} else {
-		filter_data[1] = 0;
+		cn_netlink_send_mult(msg, msg->len, 0, CN_IDX_PROC, GFP_NOWAIT,
+				     NULL, NULL);
 	}
 
-	cn_netlink_send_mult(msg, msg->len, 0, CN_IDX_PROC, GFP_NOWAIT,
-			     cn_filter, (void *)filter_data);
-
 	local_unlock(&local_event.lock);
 }
 
-- 
2.42.0


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH v1] Bug fix for issue found by kernel test robot
  2023-10-10 21:35 [PATCH v1] Bug fix for issue found by kernel test robot Anjali Kulkarni
@ 2023-10-11  0:53 ` Jakub Kicinski
  2023-10-11  5:13   ` Anjali Kulkarni
  0 siblings, 1 reply; 3+ messages in thread
From: Jakub Kicinski @ 2023-10-11  0:53 UTC (permalink / raw)
  To: Anjali Kulkarni; +Cc: linux-kernel, davem, Liam.Howlett, netdev, oliver.sang

Thanks for the fix! Let's start with some basic process feedback :)

On Tue, 10 Oct 2023 14:35:49 -0700 Anjali Kulkarni wrote:
> Subject: [PATCH v1] Bug fix for issue found by kernel test robot

Subject needs to describe the issue (e.g. fix null-deref due to $xyz)

> cn_netlink_send_mult() should be called with filter & filter_data only
> for EXIT case. For all other events, filter & filter_data should be
> NULL.

We need (1) a Fixes tag pointing to the commit which added the bug
(2) appropriate Reported-by tag (see the syzbot report)

> Signed-off-by: Anjali Kulkarni <anjali.k.kulkarni@oracle.com>
-- 
pw-bot: cr

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH v1] Bug fix for issue found by kernel test robot
  2023-10-11  0:53 ` Jakub Kicinski
@ 2023-10-11  5:13   ` Anjali Kulkarni
  0 siblings, 0 replies; 3+ messages in thread
From: Anjali Kulkarni @ 2023-10-11  5:13 UTC (permalink / raw)
  To: Jakub Kicinski
  Cc: linux-kernel@vger.kernel.org, davem@davemloft.net, Liam Howlett,
	netdev@vger.kernel.org, oliver.sang@intel.com



> On Oct 10, 2023, at 5:53 PM, Jakub Kicinski <kuba@kernel.org> wrote:
> 
> Thanks for the fix! Let's start with some basic process feedback :)
> 
> On Tue, 10 Oct 2023 14:35:49 -0700 Anjali Kulkarni wrote:
>> Subject: [PATCH v1] Bug fix for issue found by kernel test robot
> 
> Subject needs to describe the issue (e.g. fix null-deref due to $xyz)
Done.
> 
>> cn_netlink_send_mult() should be called with filter & filter_data only
>> for EXIT case. For all other events, filter & filter_data should be
>> NULL.
> 
> We need (1) a Fixes tag pointing to the commit which added the bug
> (2) appropriate Reported-by tag (see the syzbot report)
Done and sent out v2.

> 
>> Signed-off-by: Anjali Kulkarni <anjali.k.kulkarni@oracle.com>
> -- 
> pw-bot: cr


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-10-11  5:13 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2023-10-10 21:35 [PATCH v1] Bug fix for issue found by kernel test robot Anjali Kulkarni
2023-10-11  0:53 ` Jakub Kicinski
2023-10-11  5:13   ` Anjali Kulkarni

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