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=-9.0 required=3.0 tests=BAYES_00,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 064CDC433E1 for ; Thu, 30 Jul 2020 12:04:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDAD320829 for ; Thu, 30 Jul 2020 12:04:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728052AbgG3MEW (ORCPT ); Thu, 30 Jul 2020 08:04:22 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:43506 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728005AbgG3MEW (ORCPT ); Thu, 30 Jul 2020 08:04:22 -0400 Received: by mail-io1-f69.google.com with SMTP id j3so4441132iow.10 for ; Thu, 30 Jul 2020 05:04:20 -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=x8fTGN2S40SBWm2lcpVulyPJJuE5KMy0EtqvEYCFbDM=; b=UtTHNKWD9iqelm7JbW7MGfHzLtkAP8DAtSbHT3RAH3Joc08vkwNbHT0hGlupbI394j EbzAQU0t4mH23Mnfnp7FjZZUFOB4G7t/fu/kNx1ynD/6h3XEsKEUizTBqlBQOGDalQee zZty94JsT4GJ3+zDv/NbXOzKIxgWylVhqZbZlrI85Te1WZ0NZbEdLALTVyEbfvF1vTOT X87oLY3UjKm+QfHd/isog8TfjvTjAAJ5N+R/6rJtb0ZWz4Fdktdn7TWMKCDHTV1TzGre 0yf/3Uu6Qo2NT1KZC8uEhW+78s14q7PcZW8yxY+zC4lnAKWaK/yixg+hGEk5YnKC3nXB rAvg== X-Gm-Message-State: AOAM532Jj/PxkWkRq1v7SbShRchgQw22LhVS9GaeEeoAyweJ9Xhl01+/ 8OfBCF/8BufCK52jOdyPgnqI51OIzWj2BNXhoUXJFnwttwnG X-Google-Smtp-Source: ABdhPJwO5NqUL3iG5JTgIODiHOHoScQdNH+f5dTo2C/5YzPHOhEsqK/klfnhJo0EfU1l9bwNWHmj/28GEanv295Uz0qxCSlZPf4s MIME-Version: 1.0 X-Received: by 2002:a92:1805:: with SMTP id 5mr36331345ily.127.1596110660538; Thu, 30 Jul 2020 05:04:20 -0700 (PDT) Date: Thu, 30 Jul 2020 05:04:20 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f1976205aba77811@google.com> Subject: KASAN: slab-out-of-bounds Read in prism2sta_probe_usb From: syzbot To: andreyknvl@google.com, devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, hqjagain@gmail.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, osdevtc@gmail.com, rkovhaev@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: e3ee0e74 usb: common: usb-conn-gpio: Register charger git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=14ff1524900000 kernel config: https://syzkaller.appspot.com/x/.config?x=fb6677a3d4f11788 dashboard link: https://syzkaller.appspot.com/bug?extid=22794221ab96b0bab53a compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11319e6c900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10ae8712900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+22794221ab96b0bab53a@syzkaller.appspotmail.com usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? ================================================================== BUG: KASAN: slab-out-of-bounds in usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline] BUG: KASAN: slab-out-of-bounds in usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline] BUG: KASAN: slab-out-of-bounds in prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80 Read of size 1 at addr ffff8881cc0c85a3 by task kworker/0:3/138 CPU: 0 PID: 138 Comm: kworker/0:3 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf6/0x16e lib/dump_stack.c:118 print_address_description.constprop.0+0x1a/0x210 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x37/0x7c mm/kasan/report.c:530 usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline] usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline] prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:374 really_probe+0x291/0xc90 drivers/base/dd.c:520 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:696 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:802 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:868 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1c10 drivers/base/core.c:2700 usb_set_configuration+0xf05/0x18a0 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:239 usb_probe_device+0xd9/0x250 drivers/usb/core/driver.c:272 really_probe+0x291/0xc90 drivers/base/dd.c:520 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:696 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:802 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:868 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1c10 drivers/base/core.c:2700 usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Allocated by task 138: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:669 [inline] usb_parse_interface drivers/usb/core/config.c:571 [inline] usb_parse_configuration drivers/usb/core/config.c:795 [inline] usb_get_configuration+0x13d7/0x3a50 drivers/usb/core/config.c:944 usb_enumerate_device drivers/usb/core/hub.c:2387 [inline] usb_new_device+0x42c/0x7a0 drivers/usb/core/hub.c:2523 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Freed by task 16: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] kasan_set_free_info mm/kasan/common.c:316 [inline] __kasan_slab_free+0x116/0x160 mm/kasan/common.c:455 slab_free_hook mm/slub.c:1474 [inline] slab_free_freelist_hook+0x53/0x140 mm/slub.c:1507 slab_free mm/slub.c:3072 [inline] kfree+0xbc/0x2c0 mm/slub.c:4052 seccomp_filter_free kernel/seccomp.c:573 [inline] seccomp_filter_free kernel/seccomp.c:569 [inline] __put_seccomp_filter+0xb3/0xf0 kernel/seccomp.c:583 free_task+0x76/0x110 kernel/fork.c:476 __put_task_struct+0x21c/0x3a0 kernel/fork.c:756 put_task_struct include/linux/sched/task.h:126 [inline] delayed_put_task_struct+0x21c/0x360 kernel/exit.c:172 rcu_do_batch kernel/rcu/tree.c:2414 [inline] rcu_core+0x506/0x1840 kernel/rcu/tree.c:2641 __do_softirq+0x222/0x95b kernel/softirq.c:292 The buggy address belongs to the object at ffff8881cc0c8500 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 163 bytes inside of 192-byte region [ffff8881cc0c8500, ffff8881cc0c85c0) The buggy address belongs to the page: page:ffffea0007303200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x200000000000200(slab) raw: 0200000000000200 ffffea00073e28c0 0000000400000004 ffff8881da002a00 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881cc0c8480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8881cc0c8500: 00 00 00 00 00 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches 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=-9.0 required=3.0 tests=BAYES_00,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 6162BC433E4 for ; Thu, 30 Jul 2020 12:04:25 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 40A3420829 for ; Thu, 30 Jul 2020 12:04:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 40A3420829 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=driverdev-devel-bounces@linuxdriverproject.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id CB0F02107A; Thu, 30 Jul 2020 12:04:24 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rIvdwk0T1TtK; Thu, 30 Jul 2020 12:04:23 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by silver.osuosl.org (Postfix) with ESMTP id 58A98204FC; Thu, 30 Jul 2020 12:04:23 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by ash.osuosl.org (Postfix) with ESMTP id 02AFF1BF2CC for ; Thu, 30 Jul 2020 12:04:22 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id EE98F86CFF for ; Thu, 30 Jul 2020 12:04:21 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6wm9v5LMwSO2 for ; Thu, 30 Jul 2020 12:04:21 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 316A0844CE for ; Thu, 30 Jul 2020 12:04:21 +0000 (UTC) Received: by mail-io1-f69.google.com with SMTP id r9so18400361ioa.15 for ; Thu, 30 Jul 2020 05:04:21 -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=x8fTGN2S40SBWm2lcpVulyPJJuE5KMy0EtqvEYCFbDM=; b=qQYa5iwOWMFnM3KCZyNTo2+xD/0p9ztjo57MYPLxhBuTSIENQwU7d9ihJSiJ8n/axj 0X7robpRKD7ZNMc5nJ790cCbCG1XbvOdtT7qcc7w8lfHeXClXyD5gOgDnd46WbjQASYd eH8SkbvKMp5wL/zoxlR6JgF746pFjhLAQjWPPFC3EL8tUnA4zZvrEcy+RUa8xTkNEkvy TYrTGzB2QM/iMCCEW/tZul4r/KgoC4g2qgfOHFyBjHpVkhopiJYBS4c3AqrWr9xydqMC vImkCEu4fAuUZjp+q8KHKnYm+f0JGVuWZKEgCfZnSVMS40HlW1avXarWXzMCt8fMqaxs jPoQ== X-Gm-Message-State: AOAM531OyrYqfTGsnb5onZy9tpkYlrx0I3TrmW1GeVwm39Yuj7Hs5SuA fUUzbtP2YDgLxZEERTN3LrA8PgwfKBxYnM7rHWzcT51RnITp X-Google-Smtp-Source: ABdhPJwO5NqUL3iG5JTgIODiHOHoScQdNH+f5dTo2C/5YzPHOhEsqK/klfnhJo0EfU1l9bwNWHmj/28GEanv295Uz0qxCSlZPf4s MIME-Version: 1.0 X-Received: by 2002:a92:1805:: with SMTP id 5mr36331345ily.127.1596110660538; Thu, 30 Jul 2020 05:04:20 -0700 (PDT) Date: Thu, 30 Jul 2020 05:04:20 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f1976205aba77811@google.com> Subject: KASAN: slab-out-of-bounds Read in prism2sta_probe_usb From: syzbot To: andreyknvl@google.com, devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, hqjagain@gmail.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, osdevtc@gmail.com, rkovhaev@gmail.com, syzkaller-bugs@googlegroups.com X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Driver Project Developer List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" Hello, syzbot found the following issue on: HEAD commit: e3ee0e74 usb: common: usb-conn-gpio: Register charger git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=14ff1524900000 kernel config: https://syzkaller.appspot.com/x/.config?x=fb6677a3d4f11788 dashboard link: https://syzkaller.appspot.com/bug?extid=22794221ab96b0bab53a compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11319e6c900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10ae8712900000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+22794221ab96b0bab53a@syzkaller.appspotmail.com usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? ================================================================== BUG: KASAN: slab-out-of-bounds in usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline] BUG: KASAN: slab-out-of-bounds in usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline] BUG: KASAN: slab-out-of-bounds in prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80 Read of size 1 at addr ffff8881cc0c85a3 by task kworker/0:3/138 CPU: 0 PID: 138 Comm: kworker/0:3 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf6/0x16e lib/dump_stack.c:118 print_address_description.constprop.0+0x1a/0x210 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x37/0x7c mm/kasan/report.c:530 usb_endpoint_xfer_bulk include/uapi/linux/usb/ch9.h:518 [inline] usb_endpoint_is_bulk_out include/uapi/linux/usb/ch9.h:586 [inline] prism2sta_probe_usb+0x26c/0x810 drivers/staging/wlan-ng/prism2usb.c:80 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:374 really_probe+0x291/0xc90 drivers/base/dd.c:520 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:696 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:802 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:868 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1c10 drivers/base/core.c:2700 usb_set_configuration+0xf05/0x18a0 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0xba/0xf2 drivers/usb/core/generic.c:239 usb_probe_device+0xd9/0x250 drivers/usb/core/driver.c:272 really_probe+0x291/0xc90 drivers/base/dd.c:520 driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:696 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:802 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x28d/0x430 drivers/base/dd.c:868 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xb09/0x1c10 drivers/base/core.c:2700 usb_new_device.cold+0x71d/0xfd4 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Allocated by task 138: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:494 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:669 [inline] usb_parse_interface drivers/usb/core/config.c:571 [inline] usb_parse_configuration drivers/usb/core/config.c:795 [inline] usb_get_configuration+0x13d7/0x3a50 drivers/usb/core/config.c:944 usb_enumerate_device drivers/usb/core/hub.c:2387 [inline] usb_new_device+0x42c/0x7a0 drivers/usb/core/hub.c:2523 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x2361/0x4390 drivers/usb/core/hub.c:5576 process_one_work+0x94c/0x15f0 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x392/0x470 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Freed by task 16: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] kasan_set_free_info mm/kasan/common.c:316 [inline] __kasan_slab_free+0x116/0x160 mm/kasan/common.c:455 slab_free_hook mm/slub.c:1474 [inline] slab_free_freelist_hook+0x53/0x140 mm/slub.c:1507 slab_free mm/slub.c:3072 [inline] kfree+0xbc/0x2c0 mm/slub.c:4052 seccomp_filter_free kernel/seccomp.c:573 [inline] seccomp_filter_free kernel/seccomp.c:569 [inline] __put_seccomp_filter+0xb3/0xf0 kernel/seccomp.c:583 free_task+0x76/0x110 kernel/fork.c:476 __put_task_struct+0x21c/0x3a0 kernel/fork.c:756 put_task_struct include/linux/sched/task.h:126 [inline] delayed_put_task_struct+0x21c/0x360 kernel/exit.c:172 rcu_do_batch kernel/rcu/tree.c:2414 [inline] rcu_core+0x506/0x1840 kernel/rcu/tree.c:2641 __do_softirq+0x222/0x95b kernel/softirq.c:292 The buggy address belongs to the object at ffff8881cc0c8500 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 163 bytes inside of 192-byte region [ffff8881cc0c8500, ffff8881cc0c85c0) The buggy address belongs to the page: page:ffffea0007303200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x200000000000200(slab) raw: 0200000000000200 ffffea00073e28c0 0000000400000004 ffff8881da002a00 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881cc0c8480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8881cc0c8500: 00 00 00 00 00 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel