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From: Nuno Das Neves <nunodasneves@linux.microsoft.com>
To: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
	wei.liu@kernel.org
Cc: kys@microsoft.com, haiyangz@microsoft.com, mhklinux@outlook.com,
	decui@microsoft.com,
	Nuno Das Neves <nunodasneves@linux.microsoft.com>
Subject: [PATCH] Drivers: hv: Fix bad pointer dereference in hv_get_partition_id
Date: Tue,  1 Apr 2025 10:32:17 -0700	[thread overview]
Message-ID: <1743528737-20310-1-git-send-email-nunodasneves@linux.microsoft.com> (raw)

'output' is already a pointer to the output argument, it should be
passed directly to hv_do_hypercall() without the '&' operator.

Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
---
This patch is a fixup for:
e96204e5e96e hyperv: Move hv_current_partition_id to arch-generic code

 drivers/hv/hv_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv_common.c b/drivers/hv/hv_common.c
index b3b11be11650..a7d7494feaca 100644
--- a/drivers/hv/hv_common.c
+++ b/drivers/hv/hv_common.c
@@ -307,7 +307,7 @@ void __init hv_get_partition_id(void)
 
 	local_irq_save(flags);
 	output = *this_cpu_ptr(hyperv_pcpu_input_arg);
-	status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, &output);
+	status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, output);
 	pt_id = output->partition_id;
 	local_irq_restore(flags);
 
-- 
2.34.1


             reply	other threads:[~2025-04-01 17:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-01 17:32 Nuno Das Neves [this message]
2025-04-02  4:15 ` Michael Kelley
2025-04-03  8:24 ` Naman Jain
2025-04-07  5:24   ` Wei Liu
2025-04-07  5:42     ` Wei Liu
2025-04-03 14:02 ` Markus Elfring
2025-04-07  5:24 ` Wei Liu

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