From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A40727DA7D; Thu, 15 Aug 2024 13:59:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723730342; cv=none; b=qSZuhFqbiyRXCeA2R2AuFpZWHV8kFiQo0IM4VPuyxqKoM3cr++NggsKuDUGDt7ub56iSzUOrV/MSMnYNSlLmNONDsIGeGv7/+JDnJgcBVyk+/CJBvu41YCekdV4gpWOETUdcqSEFeIbi3mOIWgaQ13N38XiG8t2CUZIVtRMjikE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723730342; c=relaxed/simple; bh=bAYZO7+OPur4CXdzLQRsozM5PQl4T6w8Mzva3rLJMQE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=K+U+dV3sEB+TsjsVMKEayiPI1SnkugFMI2S6qLCKWbAHZnVegJ2VzUj92uf07wHn4mHxkjaGUgUaErHl9O3uMezV3mtGKux/Bm7LZS/dTxaW9kll4AjuDiru5NZlJGRiUEHg34nlYxrV5O9TZtSDyW7zI/xPjX+uRLYIPyw0ECc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1wUmH3/T; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="1wUmH3/T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23C23C32786; Thu, 15 Aug 2024 13:59:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723730342; bh=bAYZO7+OPur4CXdzLQRsozM5PQl4T6w8Mzva3rLJMQE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1wUmH3/TNdW9kC+AR38R690AuIROHPN3l+hYDML/SPI7D5eZGsLbmTafQX6JDYVzw uaKxFkEz/wEH2S38E9dEmv6AhKVT3by8fJevEeMttwrDETEafJmygvHgRoglTSsi/Z 61tHU9+rpLf2Bw/kXJgrBBHOS9qiPq+NkkTAHo7A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ma Jun , Lijo Lazar , Alex Deucher , Sasha Levin Subject: [PATCH 5.15 379/484] drm/amdgpu: Fix the null pointer dereference to ras_manager Date: Thu, 15 Aug 2024 15:23:57 +0200 Message-ID: <20240815131956.085753457@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240815131941.255804951@linuxfoundation.org> References: <20240815131941.255804951@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ma Jun [ Upstream commit 4c11d30c95576937c6c35e6f29884761f2dddb43 ] Check ras_manager before using it Signed-off-by: Ma Jun Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index c963b87014b69..92a4f07858785 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -1509,12 +1509,15 @@ static void amdgpu_ras_interrupt_process_handler(struct work_struct *work) int amdgpu_ras_interrupt_dispatch(struct amdgpu_device *adev, struct ras_dispatch_if *info) { - struct ras_manager *obj = amdgpu_ras_find_obj(adev, &info->head); - struct ras_ih_data *data = &obj->ih_data; + struct ras_manager *obj; + struct ras_ih_data *data; + obj = amdgpu_ras_find_obj(adev, &info->head); if (!obj) return -EINVAL; + data = &obj->ih_data; + if (data->inuse == 0) return 0; -- 2.43.0