linux-kernel - [PATCH linux-next v2 3/3] drivers/platform/x86/intel: fix a memory leak in intel_vsec_add

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]

Message-Id: <20230309040107.534716-4-dzm91@hust.edu.cn>
Date:   Thu,  9 Mar 2023 12:01:07 +0800
From:   Dongliang Mu <dzm91@...t.edu.cn>
To:     "David E. Box" <david.e.box@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>
Cc:     Dongliang Mu <dzm91@...t.edu.cn>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH linux-next v2 3/3] drivers/platform/x86/intel: fix a memory leak in intel_vsec_add_aux

The first error handling code in intel_vsec_add_aux misses the
deallocation of intel_vsec_dev->resource.

Fix this by adding kfree(intel_vsec_dev->resource) in the error handling
code.

Reviewed-by: David E. Box <david.e.box@...ux.intel.com>
Signed-off-by: Dongliang Mu <dzm91@...t.edu.cn>
---
 drivers/platform/x86/intel/vsec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c
index 13decf36c6de..2311c16cb975 100644
--- a/drivers/platform/x86/intel/vsec.c
+++ b/drivers/platform/x86/intel/vsec.c
@@ -154,6 +154,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
 	ret = ida_alloc(intel_vsec_dev->ida, GFP_KERNEL);
 	mutex_unlock(&vsec_ida_lock);
 	if (ret < 0) {
+		kfree(intel_vsec_dev->resource);
 		kfree(intel_vsec_dev);
 		return ret;
 	}
-- 
2.39.2