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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E433C4332B for ; Thu, 19 Mar 2020 14:31:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 37ABA20663 for ; Thu, 19 Mar 2020 14:31:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727365AbgCSObz (ORCPT ); Thu, 19 Mar 2020 10:31:55 -0400 Received: from comms.puri.sm ([159.203.221.185]:52516 "EHLO comms.puri.sm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726795AbgCSObz (ORCPT ); Thu, 19 Mar 2020 10:31:55 -0400 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id 095C1E0198; Thu, 19 Mar 2020 07:31:52 -0700 (PDT) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bthujeVkMd3k; Thu, 19 Mar 2020 07:31:51 -0700 (PDT) To: amitkarwar@gmail.com, siva8118@gmail.com, kvalo@codeaurora.org Cc: davem@davemloft.net, linux-wireless@vger.kernel.org, netdev@vger.kernel.org From: Martin Kepplinger Subject: BUG: KASAN: slab-out-of-bounds in rsi_sdio_write_register_multiple+0xdc/0x1b8 [rsi_sdio] Autocrypt: addr=martin.kepplinger@puri.sm; keydata= mQINBFULfZABEADRxJqDOYAHfrp1w8Egcv88qoru37k1x0Ugy8S6qYtKLAAt7boZW+q5gPv3 Sj2KjfkWA7gotXpASN21OIfE/puKGwhDLAySY1DGNMQ0gIVakUO0ji5GJPjeB9JlmN5hbA87 Si9k3yKQQfv7Cf9Lr1iZaV4A4yjLP/JQMImaCVdC5KyqJ98Luwci1GbsLIGX3EEjfg1+MceO dnJTKZpBAKd1J7S2Ib3dRwvALdiD7zqMGqkw5xrtwasatS7pc6o/BFgA9GxbeIzKmvW/hc3Q 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l93agbtZK1r5LaxeItFOj+O2hWFLNDenJRlBYwXwlJCiHxM/O273hZZPoP8L5p54uXhaS5EJ uV2Xzgbi3VEbw3GZr+EnDC7XNE2wUrnlD/w2W6RzVYjVT6IX4SamNlV+MWX0/1fYCutfqZl8 6BSKmJjlWpfkPKzyzjhGQVZrTZYnKAu471hRv8/6Dx5JuZJgDCnYanNx3DDreRMu/nq6TfaO ekMtxgNYb/8oDry09UFHbGHLsWn6oBo= Message-ID: Date: Thu, 19 Mar 2020 15:31:47 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org hi, I'm running Linus' tree and hit the following when KASAN is enabled. Do you have an idea of what goes wrong here? I'm happy to test any changes: Mar 19 11:26:24 pureos kernel: [ 23.375247] ================================================================== Mar 19 11:26:24 pureos kernel: [ 23.382592] BUG: KASAN: slab-out-of-bounds in rsi_sdio_write_register_multiple+0xdc/0x1b8 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.391761] Read of size 16 at addr ffff0000bf1ed400 by task systemd-udevd/338 Mar 19 11:26:24 pureos kernel: [ 23.399003] Mar 19 11:26:24 pureos kernel: [ 23.400528] CPU: 0 PID: 338 Comm: systemd-udevd Not tainted 5.6.0-1-librem5 #31 Mar 19 11:26:24 pureos kernel: [ 23.400542] Hardware name: Purism Librem 5 (DT) Mar 19 11:26:24 pureos kernel: [ 23.400555] Call trace: Mar 19 11:26:24 pureos kernel: [ 23.400590] dump_backtrace+0x0/0x2a8 Mar 19 11:26:24 pureos kernel: [ 23.400615] show_stack+0x1c/0x28 Mar 19 11:26:24 pureos kernel: [ 23.400638] dump_stack+0x110/0x188 Mar 19 11:26:24 pureos kernel: [ 23.400669] print_address_description.isra.11+0x6c/0x354 Mar 19 11:26:24 pureos kernel: [ 23.400691] __kasan_report+0x130/0x244 Mar 19 11:26:24 pureos kernel: [ 23.400712] kasan_report+0xc/0x18 Mar 19 11:26:24 pureos kernel: [ 23.400736] check_memory_region+0x17c/0x1e8 Mar 19 11:26:24 pureos kernel: [ 23.400758] __asan_loadN+0x14/0x20 Mar 19 11:26:24 pureos kernel: [ 23.400813] rsi_sdio_write_register_multiple+0xdc/0x1b8 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.400863] rsi_sdio_master_reg_write+0x94/0x140 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.400962] rsi_hal_prepare_fwload+0x1a8/0x250 [rsi_91x] Mar 19 11:26:24 pureos kernel: [ 23.401049] rsi_hal_device_init+0xd4/0x1110 [rsi_91x] Mar 19 11:26:24 pureos kernel: [ 23.401099] rsi_probe+0x3d0/0x5a0 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.401122] sdio_bus_probe+0x13c/0x288 Mar 19 11:26:24 pureos kernel: [ 23.401147] really_probe+0x1bc/0x5e0 Mar 19 11:26:24 pureos kernel: [ 23.401170] driver_probe_device+0xdc/0x1a8 Mar 19 11:26:24 pureos kernel: [ 23.401193] device_driver_attach+0x9c/0xa8 Mar 19 11:26:24 pureos kernel: [ 23.401215] __driver_attach+0x110/0x1a0 Mar 19 11:26:24 pureos kernel: [ 23.401237] bus_for_each_dev+0xf0/0x158 Mar 19 11:26:24 pureos kernel: [ 23.401258] driver_attach+0x38/0x48 Mar 19 11:26:24 pureos kernel: [ 23.401279] bus_add_driver+0x280/0x2e8 Mar 19 11:26:24 pureos kernel: [ 23.401302] driver_register+0xc4/0x1d8 Mar 19 11:26:24 pureos kernel: [ 23.401328] sdio_register_driver+0x50/0x60 Mar 19 11:26:24 pureos kernel: [ 23.401377] rsi_module_init+0x24/0x50 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.401399] do_one_initcall+0xa4/0x3d8 Mar 19 11:26:24 pureos kernel: [ 23.401424] do_init_module+0xe8/0x360 Mar 19 11:26:24 pureos kernel: [ 23.401445] load_module+0x2efc/0x3390 Mar 19 11:26:24 pureos kernel: [ 23.401468] __do_sys_finit_module+0x11c/0x1a0 Mar 19 11:26:24 pureos kernel: [ 23.401491] __arm64_sys_finit_module+0x48/0x58 Mar 19 11:26:24 pureos kernel: [ 23.401518] el0_svc_common.constprop.1+0xcc/0x1e0 Mar 19 11:26:24 pureos kernel: [ 23.401541] do_el0_svc+0x34/0x40 Mar 19 11:26:24 pureos kernel: [ 23.401563] el0_sync_handler+0x134/0x1a8 Mar 19 11:26:24 pureos kernel: [ 23.401581] el0_sync+0x140/0x180 Mar 19 11:26:24 pureos kernel: [ 23.401592] Mar 19 11:26:24 pureos kernel: [ 23.403105] Allocated by task 338: Mar 19 11:26:24 pureos kernel: [ 23.406536] save_stack+0x24/0xb0 Mar 19 11:26:24 pureos kernel: [ 23.406559] __kasan_kmalloc.isra.10+0xc4/0xe0 Mar 19 11:26:24 pureos kernel: [ 23.406579] kasan_kmalloc+0xc/0x18 Mar 19 11:26:24 pureos kernel: [ 23.406600] kmem_cache_alloc_trace+0x170/0x328 Mar 19 11:26:24 pureos kernel: [ 23.406652] rsi_sdio_master_reg_write+0x4c/0x140 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.406744] rsi_hal_prepare_fwload+0x1a8/0x250 [rsi_91x] Mar 19 11:26:24 pureos kernel: [ 23.406831] rsi_hal_device_init+0xd4/0x1110 [rsi_91x] Mar 19 11:26:24 pureos kernel: [ 23.406880] rsi_probe+0x3d0/0x5a0 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.406900] sdio_bus_probe+0x13c/0x288 Mar 19 11:26:24 pureos kernel: [ 23.406923] really_probe+0x1bc/0x5e0 Mar 19 11:26:24 pureos kernel: [ 23.406946] driver_probe_device+0xdc/0x1a8 Mar 19 11:26:24 pureos kernel: [ 23.406968] device_driver_attach+0x9c/0xa8 Mar 19 11:26:24 pureos kernel: [ 23.406989] __driver_attach+0x110/0x1a0 Mar 19 11:26:24 pureos kernel: [ 23.407010] bus_for_each_dev+0xf0/0x158 Mar 19 11:26:24 pureos kernel: [ 23.407031] driver_attach+0x38/0x48 Mar 19 11:26:24 pureos kernel: [ 23.407052] bus_add_driver+0x280/0x2e8 Mar 19 11:26:24 pureos kernel: [ 23.407074] driver_register+0xc4/0x1d8 Mar 19 11:26:24 pureos kernel: [ 23.407100] sdio_register_driver+0x50/0x60 Mar 19 11:26:24 pureos kernel: [ 23.407149] rsi_module_init+0x24/0x50 [rsi_sdio] Mar 19 11:26:24 pureos kernel: [ 23.407168] do_one_initcall+0xa4/0x3d8 Mar 19 11:26:24 pureos kernel: [ 23.407191] do_init_module+0xe8/0x360 Mar 19 11:26:24 pureos kernel: [ 23.407212] load_module+0x2efc/0x3390 Mar 19 11:26:24 pureos kernel: [ 23.407234] __do_sys_finit_module+0x11c/0x1a0 Mar 19 11:26:24 pureos kernel: [ 23.407257] __arm64_sys_finit_module+0x48/0x58 Mar 19 11:26:24 pureos kernel: [ 23.407282] el0_svc_common.constprop.1+0xcc/0x1e0 Mar 19 11:26:24 pureos kernel: [ 23.407304] do_el0_svc+0x34/0x40 Mar 19 11:26:24 pureos kernel: [ 23.407326] el0_sync_handler+0x134/0x1a8 Mar 19 11:26:24 pureos kernel: [ 23.407343] el0_sync+0x140/0x180 Mar 19 11:26:24 pureos kernel: [ 23.407352] Mar 19 11:26:24 pureos kernel: [ 23.408863] Freed by task 338: Mar 19 11:26:24 pureos kernel: [ 23.411947] save_stack+0x24/0xb0 Mar 19 11:26:24 pureos kernel: [ 23.411969] __kasan_slab_free+0x10c/0x188 Mar 19 11:26:24 pureos kernel: [ 23.411991] kasan_slab_free+0x10/0x18 Mar 19 11:26:24 pureos kernel: [ 23.412009] kfree+0x88/0x378 Mar 19 11:26:24 pureos kernel: [ 23.412032] ext4_ext_map_blocks+0x518/0x14c0 Mar 19 11:26:24 pureos kernel: [ 23.412059] ext4_map_blocks+0x53c/0x888 Mar 19 11:26:24 pureos kernel: [ 23.412082] ext4_getblk+0xa0/0x298 Mar 19 11:26:24 pureos kernel: [ 23.412105] ext4_bread_batch+0x70/0x228 Mar 19 11:26:24 pureos kernel: [ 23.412129] __ext4_find_entry+0x25c/0x5f8 Mar 19 11:26:24 pureos kernel: [ 23.412149] ext4_lookup+0x120/0x350 Mar 19 11:26:24 pureos kernel: [ 23.412168] __lookup_slow+0x100/0x200 Mar 19 11:26:24 pureos kernel: [ 23.412187] walk_component+0x384/0x538 Mar 19 11:26:24 pureos kernel: [ 23.412206] path_lookupat.isra.47+0xac/0x1b0 Mar 19 11:26:24 pureos kernel: [ 23.412226] filename_lookup.part.64+0xec/0x1e8 Mar 19 11:26:24 pureos kernel: [ 23.412245] user_path_at_empty+0x54/0x68 Mar 19 11:26:24 pureos kernel: [ 23.412266] vfs_statx+0xe0/0x160 Mar 19 11:26:24 pureos kernel: [ 23.412287] __do_sys_newfstatat+0x84/0xd0 Mar 19 11:26:24 pureos kernel: [ 23.412308] __arm64_sys_newfstatat+0x58/0x68 Mar 19 11:26:24 pureos kernel: [ 23.412335] el0_svc_common.constprop.1+0xcc/0x1e0 Mar 19 11:26:24 pureos kernel: [ 23.412357] do_el0_svc+0x34/0x40 Mar 19 11:26:24 pureos kernel: [ 23.412378] el0_sync_handler+0x134/0x1a8 Mar 19 11:26:24 pureos kernel: [ 23.412395] el0_sync+0x140/0x180 Mar 19 11:26:24 pureos kernel: [ 23.412404] Mar 19 11:26:24 pureos kernel: [ 23.413922] The buggy address belongs to the object at ffff0000bf1ed400 Mar 19 11:26:24 pureos kernel: [ 23.413922] which belongs to the cache kmalloc-128 of size 128 Mar 19 11:26:24 pureos kernel: [ 23.426475] The buggy address is located 0 bytes inside of Mar 19 11:26:24 pureos kernel: [ 23.426475] 128-byte region [ffff0000bf1ed400, ffff0000bf1ed480) Mar 19 11:26:24 pureos kernel: [ 23.438063] The buggy address belongs to the page: Mar 19 11:26:24 pureos kernel: [ 23.442889] page:fffffe0002dc7b40 refcount:1 mapcount:0 mapping:ffff00008ec03c00 index:0x0 Mar 19 11:26:24 pureos kernel: [ 23.442909] flags: 0x4000000000000200(slab) Mar 19 11:26:24 pureos kernel: [ 23.442943] raw: 4000000000000200 fffffe0001f50a40 0000000e00000002 ffff00008ec03c00 Mar 19 11:26:24 pureos kernel: [ 23.442969] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 Mar 19 11:26:24 pureos kernel: [ 23.442981] page dumped because: kasan: bad access detected Mar 19 11:26:24 pureos kernel: [ 23.442991] Mar 19 11:26:24 pureos kernel: [ 23.444499] Memory state around the buggy address: Mar 19 11:26:24 pureos kernel: [ 23.449321] ffff0000bf1ed300: 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc Mar 19 11:26:24 pureos kernel: [ 23.456576] ffff0000bf1ed380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc Mar 19 11:26:24 pureos kernel: [ 23.463827] >ffff0000bf1ed400: 00 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc Mar 19 11:26:24 pureos kernel: [ 23.471068] ^ Mar 19 11:26:24 pureos kernel: [ 23.474586] ffff0000bf1ed480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc Mar 19 11:26:24 pureos kernel: [ 23.481838] ffff0000bf1ed500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Mar 19 11:26:24 pureos kernel: [ 23.489080] ==================================================================