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 6DA94C433F5 for ; Wed, 2 Feb 2022 07:19:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235335AbiBBHT2 (ORCPT ); Wed, 2 Feb 2022 02:19:28 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:45801 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233658AbiBBHTZ (ORCPT ); Wed, 2 Feb 2022 02:19:25 -0500 Received: by mail-io1-f69.google.com with SMTP id z28-20020a056602081c00b00611596ef96fso14615294iow.12 for ; Tue, 01 Feb 2022 23:19:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=UAHkUH1MA/+8rdQ51kee7aWuVbJItay3/6WcLB1JeAo=; b=IiDsnq5K95irP9ARBSs/fW1MccWJUe82aVA1sJeJhuR37rHR/HNxBC/glIRMuIIiTo L++8h+BAfIx8lQnRpHzjogI1gybeN9mTVtbNR5KW+lc+QJFhVqDZjgPZ+nq6t4g5Lc/Z Th8aQZR/F4Zw6n6VI5pp+UnX1+X3V8V+/3BJh86IaheYZVATRwur0WPgXobKktr/idzf gnovy+gfejJqIdvau3YrrUwQrMYY/MLwTIPkgIyUZ2xKdzKmSydQRYTNBQKLWzjymKHV q5O/RhUQdsB4o+VrJixkyFgNIaBXgqm8oGoUClUcY7C59KTeqBr+zAgvDutL85qdqnDD LjEQ== X-Gm-Message-State: AOAM531XewmcCn8kVHoHKUR7XEvRHJ7fgXrdEHig/02NwlIoAYjgJVA+ /zsaG3rXVtuykyH2WsPUgHxpLPkSIpiEN8Q0piYXuZj5/FKO X-Google-Smtp-Source: ABdhPJx3mmWJu2fTkK0/71y7h41nw8ZoOrztw5PhXt38ULXsnGqhFVLRlHLhDDhWWjz2q6mAyppd7OgR0NqqrpNUPBLewk6FLNZ5 MIME-Version: 1.0 X-Received: by 2002:a05:6638:6a1:: with SMTP id d1mr15127097jad.309.1643786365309; Tue, 01 Feb 2022 23:19:25 -0800 (PST) Date: Tue, 01 Feb 2022 23:19:25 -0800 In-Reply-To: <0000000000000560cc05d4bce058@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000064159d05d703d683@google.com> Subject: Re: [syzbot] general protection fault in hidraw_release From: syzbot To: benjamin.tissoires@redhat.com, jikos@kernel.org, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 9f7fb8de5d9b Merge tag 'spi-fix-v5.17-rc2' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1653b6cbb00000 kernel config: https://syzkaller.appspot.com/x/.config?x=3e56c9b92aaaee24 dashboard link: https://syzkaller.appspot.com/bug?extid=953a33deaf38c66a915e compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15fff530700000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=106469f0700000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+953a33deaf38c66a915e@syzkaller.appspotmail.com ================================================================== BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0xf0 lib/list_debug.c:51 Read of size 8 at addr ffff8880143e8eb0 by task syz-executor753/4862 CPU: 0 PID: 4862 Comm: syz-executor753 Not tainted 5.17.0-rc2-syzkaller-00039-g9f7fb8de5d9b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x303 mm/kasan/report.c:255 __kasan_report mm/kasan/report.c:442 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:459 __list_del_entry_valid+0xe0/0xf0 lib/list_debug.c:51 __list_del_entry include/linux/list.h:134 [inline] list_del include/linux/list.h:148 [inline] hidraw_release+0xd5/0x370 drivers/hid/hidraw.c:353 __fput+0x286/0x9f0 fs/file_table.c:311 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xb29/0x2a30 kernel/exit.c:806 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 __do_sys_exit_group kernel/exit.c:946 [inline] __se_sys_exit_group kernel/exit.c:944 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f4256d1c749 Code: Unable to access opcode bytes at RIP 0x7f4256d1c71f. RSP: 002b:00007fffddc9a4e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f4256d913f0 RCX: 00007f4256d1c749 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 00007fffddc9a560 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f4256d913f0 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Allocated by task 20: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] ____kasan_kmalloc mm/kasan/common.c:515 [inline] ____kasan_kmalloc mm/kasan/common.c:474 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524 kasan_kmalloc include/linux/kasan.h:270 [inline] kmem_cache_alloc_trace+0x1ea/0x4a0 mm/slab.c:3567 kmalloc include/linux/slab.h:581 [inline] kzalloc include/linux/slab.h:715 [inline] hidraw_connect+0x4b/0x440 drivers/hid/hidraw.c:543 hid_connect+0x5be/0xbc0 drivers/hid/hid-core.c:1960 hid_hw_start drivers/hid/hid-core.c:2059 [inline] hid_hw_start+0xa2/0x130 drivers/hid/hid-core.c:2050 hid_generic_probe drivers/hid/hid-generic.c:67 [inline] hid_generic_probe+0x6d/0x90 drivers/hid/hid-generic.c:56 hid_device_probe+0x2bd/0x3f0 drivers/hid/hid-core.c:2380 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x245/0xcc0 drivers/base/dd.c:596 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:752 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:782 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:899 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427 __device_attach+0x228/0x4a0 drivers/base/dd.c:970 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487 device_add+0xc17/0x1ee0 drivers/base/core.c:3405 hid_add_device+0x344/0x9d0 drivers/hid/hid-core.c:2530 uhid_device_add_worker+0x36/0x60 drivers/hid/uhid.c:73 process_one_work+0x9ac/0x1650 kernel/workqueue.c:2307 worker_thread+0x657/0x1110 kernel/workqueue.c:2454 kthread+0x2e9/0x3a0 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Freed by task 4861: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xee/0x130 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:236 [inline] __cache_free mm/slab.c:3437 [inline] kfree+0xf6/0x290 mm/slab.c:3794 drop_ref+0x28f/0x390 drivers/hid/hidraw.c:335 hidraw_release+0x255/0x370 drivers/hid/hidraw.c:357 __fput+0x286/0x9f0 fs/file_table.c:311 task_work_run+0xdd/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xb29/0x2a30 kernel/exit.c:806 do_group_exit+0xd2/0x2f0 kernel/exit.c:935 __do_sys_exit_group kernel/exit.c:946 [inline] __se_sys_exit_group kernel/exit.c:944 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:944 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff8880143e8e00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 176 bytes inside of 192-byte region [ffff8880143e8e00, ffff8880143e8ec0) The buggy address belongs to the page: page:ffffea000050fa00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x143e8 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea000050f188 ffffea000050fc48 ffff888010c40000 raw: 0000000000000000 ffff8880143e8000 0000000100000010 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_THISNODE), pid 1, ts 2151082992, free_ts 0 prep_new_page mm/page_alloc.c:2434 [inline] get_page_from_freelist+0xa72/0x2f50 mm/page_alloc.c:4165 __alloc_pages+0x1b2/0x500 mm/page_alloc.c:5389 __alloc_pages_node include/linux/gfp.h:572 [inline] kmem_getpages mm/slab.c:1378 [inline] cache_grow_begin+0x75/0x350 mm/slab.c:2584 cache_alloc_refill+0x27f/0x380 mm/slab.c:2957 ____cache_alloc mm/slab.c:3040 [inline] ____cache_alloc mm/slab.c:3023 [inline] __do_cache_alloc mm/slab.c:3267 [inline] slab_alloc mm/slab.c:3308 [inline] kmem_cache_alloc_trace+0x380/0x4a0 mm/slab.c:3565 kmalloc include/linux/slab.h:581 [inline] kzalloc include/linux/slab.h:715 [inline] call_usermodehelper_setup+0x9d/0x340 kernel/umh.c:365 kobject_uevent_env+0xf28/0x1600 lib/kobject_uevent.c:614 kernel_add_sysfs_param kernel/params.c:816 [inline] param_sysfs_builtin kernel/params.c:851 [inline] param_sysfs_init+0x367/0x43b kernel/params.c:970 do_one_initcall+0x103/0x650 init/main.c:1300 do_initcall_level init/main.c:1373 [inline] do_initcalls init/main.c:1389 [inline] do_basic_setup init/main.c:1408 [inline] kernel_init_freeable+0x6b1/0x73a init/main.c:1613 kernel_init+0x1a/0x1d0 init/main.c:1502 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 page_owner free stack trace missing Memory state around the buggy address: ffff8880143e8d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8880143e8e00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880143e8e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff8880143e8f00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880143e8f80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================