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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 01A89C433DF for ; Wed, 3 Jun 2020 15:32:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E1EC9205CB for ; Wed, 3 Jun 2020 15:32:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726218AbgFCPcR (ORCPT ); Wed, 3 Jun 2020 11:32:17 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:49578 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726086AbgFCPcP (ORCPT ); Wed, 3 Jun 2020 11:32:15 -0400 Received: by mail-il1-f200.google.com with SMTP id p20so1755959ili.16 for ; Wed, 03 Jun 2020 08:32:15 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=Gl8DCI8PdMFP57T9AipLOavLrIwW1cuatNeoRe4hWbg=; b=sWyELCH/7Myug+/rpH7fDntiv9c80R6PvqdH91ZTNxXVIw9WIPWGQoIKaikKZ/cOOH 7iVWTIIPHcuBPnzOVDF6GxakOItHrPvwRvb/oD6M9pSK4+01i5jhLmM62OR1nKJF4tDn m3agxt4w5KnD6fKTKUuPKwQZ3sRMYgaPQGVhHhTc5eyJaqf6v3OVAWLdY3HXlxj4xY2L d0oe1oPPzV03ZUTd+1qJ+sA6Fzs1SAOsA7uE8xrqQZp3+oBW85CNJ7yrx2+zyWBqrgIj bfxwLncA2QAwR/duu7UqrjIL6s8rn4tAVRNdhKM9fwzaJ+oU18th8vBUG8urCOsfaiy/ sAvg== X-Gm-Message-State: AOAM532O1g77q7tlpgy/W5OfF5ljvOeru8YwF10jZs3m3n5spC3EIlco JFKDXyjEMir/A02nt7+1XWheVY1DUuj6W/E4mdFQztczuwEH X-Google-Smtp-Source: ABdhPJy5Ka0KHHhvWlr51OHU3WnJemWLkBsFR4ZWyPRPCO6VwyWIBTXiNMdirWDuNq1OUicZ8NEv0kerl7DZV6+xqhHPTg15ivM5 MIME-Version: 1.0 X-Received: by 2002:a92:9c52:: with SMTP id h79mr100851ili.252.1591198334773; Wed, 03 Jun 2020 08:32:14 -0700 (PDT) Date: Wed, 03 Jun 2020 08:32:14 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000082f13605a72fbbcb@google.com> Subject: KASAN: out-of-bounds Read in ath9k_hif_usb_rx_cb From: syzbot To: andreyknvl@google.com, ath9k-devel@qca.qualcomm.com, davem@davemloft.net, kuba@kernel.org, kvalo@codeaurora.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 2089c6ed usb: core: kcov: collect coverage from usb comple.. git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=17cf6bd6100000 kernel config: https://syzkaller.appspot.com/x/.config?x=b7479d3935864b1b dashboard link: https://syzkaller.appspot.com/bug?extid=d7289ef49bcdfd654265 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+d7289ef49bcdfd654265@syzkaller.appspotmail.com ================================================================== BUG: KASAN: out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:622 [inline] BUG: KASAN: out-of-bounds in ath9k_hif_usb_rx_cb+0xe64/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666 Read of size 4 at addr ffff8881acb6c0d0 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.7.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xef/0x16e lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x415 mm/kasan/report.c:382 __kasan_report.cold+0x37/0x7d mm/kasan/report.c:511 kasan_report+0x33/0x50 mm/kasan/common.c:625 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:622 [inline] ath9k_hif_usb_rx_cb+0xe64/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666 __usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1967 call_timer_fn+0x1ac/0x700 kernel/time/timer.c:1405 expire_timers kernel/time/timer.c:1450 [inline] __run_timers kernel/time/timer.c:1774 [inline] __run_timers kernel/time/timer.c:1741 [inline] run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1787 __do_softirq+0x21e/0x9aa kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x178/0x1a0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1140 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:default_idle+0x28/0x300 arch/x86/kernel/process.c:698 Code: cc cc 41 56 41 55 65 44 8b 2d 94 3f 6b 7a 41 54 55 53 0f 1f 44 00 00 e8 16 28 af fb e9 07 00 00 00 0f 00 2d 7a e1 4b 00 fb f4 <65> 44 8b 2d 70 3f 6b 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 RSP: 0018:ffff8881da227da8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff8881da20b180 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da20b9fc RBP: ffffed103b441630 R08: ffff8881da20b180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff87e88c40 R15: 0000000000000000 cpuidle_idle_call kernel/sched/idle.c:154 [inline] do_idle+0x3e0/0x500 kernel/sched/idle.c:269 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:361 start_secondary+0x2ae/0x390 arch/x86/kernel/smpboot.c:268 secondary_startup_64+0xb6/0xc0 arch/x86/kernel/head_64.S:242 The buggy address belongs to the page: page:ffffea0006b2db00 refcount:0 mapcount:0 mapping:0000000080660f93 index:0x0 flags: 0x200000000000000() raw: 0200000000000000 0000000000000000 ffffea0006b2db08 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881acb6bf80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8881acb6c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff8881acb6c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff8881acb6c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff8881acb6c180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.