From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A15AC4332F for ; Tue, 7 Nov 2023 12:44:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343604AbjKGMnv (ORCPT ); Tue, 7 Nov 2023 07:43:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36584 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235315AbjKGMnd (ORCPT ); Tue, 7 Nov 2023 07:43:33 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C923B34908; Tue, 7 Nov 2023 04:30:34 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2B0BC433C7; Tue, 7 Nov 2023 12:30:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699360234; bh=wL/CkSYJ3jA3L7+y9MURCH02fshupY3tc4R/tcWw1iI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WD6v0eUN6wD2wpW02STtPXAXIAl+NpNHzjRpBZzXo8dsWA6NDNOKTkfph3rVHGZ6h TnNddPSNZcm6USkwU0ZUctndWLVhSiMD5UlEdZrH4Jq41c0rIARiTmtns127oDYMmZ 5shS2XbLsg1zJOJmO8MMbiKHOvYLtq9AlR4TLAmjxaMSnADeszcPMSyMONs1lgFwgo IBrMYwJDBk9ynXq1dSVgybaRbhFMFAXqkOwspVvmkxPr1nCgW5X1dIPClITU2hSNnO mWXPauz+3AyPFbc8igvWlXADrHapAZgBwg8EMlcEz80FJT61CN1PClyxWz3fK4Qcqn n6SVY5Pp/tq6Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jesse Zhang , Philip Yang , Yifan Zhang , Alex Deucher , Sasha Levin , Felix.Kuehling@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@gmail.com, daniel@ffwll.ch, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.15 17/20] drm/amdkfd: Fix shift out-of-bounds issue Date: Tue, 7 Nov 2023 07:29:11 -0500 Message-ID: <20231107122940.3762228-17-sashal@kernel.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231107122940.3762228-1-sashal@kernel.org> References: <20231107122940.3762228-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.137 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jesse Zhang [ Upstream commit 282c1d793076c2edac6c3db51b7e8ed2b41d60a5 ] [ 567.613292] shift exponent 255 is too large for 64-bit type 'long unsigned int' [ 567.614498] CPU: 5 PID: 238 Comm: kworker/5:1 Tainted: G OE 6.2.0-34-generic #34~22.04.1-Ubuntu [ 567.614502] Hardware name: AMD Splinter/Splinter-RPL, BIOS WS43927N_871 09/25/2023 [ 567.614504] Workqueue: events send_exception_work_handler [amdgpu] [ 567.614748] Call Trace: [ 567.614750] [ 567.614753] dump_stack_lvl+0x48/0x70 [ 567.614761] dump_stack+0x10/0x20 [ 567.614763] __ubsan_handle_shift_out_of_bounds+0x156/0x310 [ 567.614769] ? srso_alias_return_thunk+0x5/0x7f [ 567.614773] ? update_sd_lb_stats.constprop.0+0xf2/0x3c0 [ 567.614780] svm_range_split_by_granularity.cold+0x2b/0x34 [amdgpu] [ 567.615047] ? srso_alias_return_thunk+0x5/0x7f [ 567.615052] svm_migrate_to_ram+0x185/0x4d0 [amdgpu] [ 567.615286] do_swap_page+0x7b6/0xa30 [ 567.615291] ? srso_alias_return_thunk+0x5/0x7f [ 567.615294] ? __free_pages+0x119/0x130 [ 567.615299] handle_pte_fault+0x227/0x280 [ 567.615303] __handle_mm_fault+0x3c0/0x720 [ 567.615311] handle_mm_fault+0x119/0x330 [ 567.615314] ? lock_mm_and_find_vma+0x44/0x250 [ 567.615318] do_user_addr_fault+0x1a9/0x640 [ 567.615323] exc_page_fault+0x81/0x1b0 [ 567.615328] asm_exc_page_fault+0x27/0x30 [ 567.615332] RIP: 0010:__get_user_8+0x1c/0x30 Signed-off-by: Jesse Zhang Suggested-by: Philip Yang Reviewed-by: Yifan Zhang Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index b7d32a5062b6c..53e413d9a3030 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -698,7 +698,7 @@ svm_range_apply_attrs(struct kfd_process *p, struct svm_range *prange, prange->flags &= ~attrs[i].value; break; case KFD_IOCTL_SVM_ATTR_GRANULARITY: - prange->granularity = attrs[i].value; + prange->granularity = min_t(uint32_t, attrs[i].value, 0x3F); break; default: WARN_ONCE(1, "svm_range_check_attrs wasn't called?"); -- 2.42.0