linux-kernel - [PATCH 5.8 007/255] drm/amdgpu: fix RAS memory leak in error case

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

Message-Id: <20200901151001.160468656@linuxfoundation.org>
Date:   Tue,  1 Sep 2020 17:07:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Guchun Chen <guchun.chen@....com>,
        Tao Zhou <tao.zhou1@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.8 007/255] drm/amdgpu: fix RAS memory leak in error case

From: Guchun Chen <guchun.chen@....com>

[ Upstream commit 5e91160ac0b5cfbbaeb62cbff8b069262095f744 ]

RAS context memory needs to freed in failure case.

Signed-off-by: Guchun Chen <guchun.chen@....com>
Reviewed-by: Tao Zhou <tao.zhou1@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 50fe08bf2f727..20a7d75b2eb88 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -1914,9 +1914,8 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
 	amdgpu_ras_check_supported(adev, &con->hw_supported,
 			&con->supported);
 	if (!con->hw_supported) {
-		amdgpu_ras_set_context(adev, NULL);
-		kfree(con);
-		return 0;
+		r = 0;
+		goto err_out;
 	}
 
 	con->features = 0;
@@ -1927,29 +1926,31 @@ int amdgpu_ras_init(struct amdgpu_device *adev)
 	if (adev->nbio.funcs->init_ras_controller_interrupt) {
 		r = adev->nbio.funcs->init_ras_controller_interrupt(adev);
 		if (r)
-			return r;
+			goto err_out;
 	}
 
 	if (adev->nbio.funcs->init_ras_err_event_athub_interrupt) {
 		r = adev->nbio.funcs->init_ras_err_event_athub_interrupt(adev);
 		if (r)
-			return r;
+			goto err_out;
 	}
 
 	amdgpu_ras_mask &= AMDGPU_RAS_BLOCK_MASK;
 
-	if (amdgpu_ras_fs_init(adev))
-		goto fs_out;
+	if (amdgpu_ras_fs_init(adev)) {
+		r = -EINVAL;
+		goto err_out;
+	}
 
 	dev_info(adev->dev, "RAS INFO: ras initialized successfully, "
 			"hardware ability[%x] ras_mask[%x]\n",
 			con->hw_supported, con->supported);
 	return 0;
-fs_out:
+err_out:
 	amdgpu_ras_set_context(adev, NULL);
 	kfree(con);
 
-	return -EINVAL;
+	return r;
 }
 
 /* helper function to handle common stuff in ip late init phase */
-- 
2.25.1