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=-8.7 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=ham 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 D40FFC433ED for ; Mon, 17 May 2021 10:56:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B09D761059 for ; Mon, 17 May 2021 10:56:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236482AbhEQK5r (ORCPT ); Mon, 17 May 2021 06:57:47 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:52997 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236587AbhEQK5k (ORCPT ); Mon, 17 May 2021 06:57:40 -0400 Received: by mail-il1-f197.google.com with SMTP id b7-20020a056e020487b02901bb31b56af8so5926367ils.19 for ; Mon, 17 May 2021 03:56:23 -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=5iIoTlWmHOI2C29PmRlvFB6YEj33u2SIMrpUVwF/jMM=; b=uTAqj+o1O9LK1UbVgM+zSrnrEV97SKotrbhIO+lww4KwScSp4SYWQe911un/0L0XBc i/pG3FcK3r6uCB/3w5Wog8OAR+DEg7q4yHKkDfwCotDdxYVZakP6aNIJi5pIAjyn+YkJ TFGkMWK3v97u6hf7axgcYC+cUwCNHZ9eHp/d61Gl0BvGEf1Un3miAFTFJOlVH13WZ+KH g7qu2UnXIS6Y18OGjaeD7zB1t+JCTmwzRhOjA8lYBY9LdBQKIRzIO3EH7zUoz1qmgazC xRW+hUfMJdtocwXxlFin1LLoL1Rd9Rl4PhjcqDXPDliJoFBhE6BO187CVMro/hexMvEz ktYw== X-Gm-Message-State: AOAM53214NV0Lktv+YaG6qi+rRqCyvoUPLlK4KVMO84l+pz8seos+sNs YbVVmoiKLVqGQ3SzHD8ECoj3zeJazkJKSLKdoFZ0ID/ErldQ X-Google-Smtp-Source: ABdhPJzoIrNNbHx/OG3cWTzepju2sQ9MGkhjikNOEKFOW0RGNu6VXw2cwktthHzkoC58cveAdi07n7pD1vfLaXaOGfcl8zAeZmON MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1002:: with SMTP id n2mr49711952ilj.260.1621248982875; Mon, 17 May 2021 03:56:22 -0700 (PDT) Date: Mon, 17 May 2021 03:56:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b782b505c2847180@google.com> Subject: [syzbot] KASAN: use-after-free Read in ntfs_test_inode From: syzbot To: anton@tuxera.com, linux-kernel@vger.kernel.org, linux-ntfs-dev@lists.sourceforge.net, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 9cdbf646 Merge tag 'io_uring-5.12-2021-04-16' of git://git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11684629d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=330c6a2c09278509 dashboard link: https://syzkaller.appspot.com/bug?extid=2751da923b5eb8307b0b compiler: Debian clang version 11.0.1-2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2751da923b5eb8307b0b@syzkaller.appspotmail.com ntfs: volume version 3.1. ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read include/linux/instrumented.h:71 [inline] BUG: KASAN: use-after-free in test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] BUG: KASAN: use-after-free in NInoAttr fs/ntfs/inode.h:200 [inline] BUG: KASAN: use-after-free in ntfs_test_inode+0x7b/0x2d0 fs/ntfs/inode.c:55 Read of size 8 at addr ffff8880974790f0 by task syz-executor.3/12887 CPU: 1 PID: 12887 Comm: syz-executor.3 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x176/0x24e lib/dump_stack.c:120 print_address_description+0x5f/0x3a0 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report+0x15c/0x200 mm/kasan/report.c:416 check_region_inline mm/kasan/generic.c:135 [inline] kasan_check_range+0x2b5/0x2f0 mm/kasan/generic.c:186 instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] NInoAttr fs/ntfs/inode.h:200 [inline] ntfs_test_inode+0x7b/0x2d0 fs/ntfs/inode.c:55 find_inode+0x10c/0x3e0 fs/inode.c:825 ilookup5_nowait fs/inode.c:1335 [inline] ilookup5+0x9d/0x1f0 fs/inode.c:1364 iget5_locked+0x30/0x3d0 fs/inode.c:1145 ntfs_iget+0x73/0x130 fs/ntfs/inode.c:168 load_and_check_logfile fs/ntfs/super.c:1208 [inline] load_system_files fs/ntfs/super.c:1941 [inline] ntfs_fill_super+0x58f2/0x88e0 fs/ntfs/super.c:2893 mount_bdev+0x26c/0x3a0 fs/super.c:1367 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1497 do_new_mount fs/namespace.c:2903 [inline] path_mount+0x188a/0x29a0 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x28c/0x320 fs/namespace.c:3431 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x46797a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f50a372bfa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f50a372c000 RBP: 00007f50a372c040 R08: 00007f50a372c040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f50a372c000 R15: 000000002007dc00 Allocated by task 11540: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:427 [inline] __kasan_slab_alloc+0x8f/0xc0 mm/kasan/common.c:460 kasan_slab_alloc include/linux/kasan.h:223 [inline] slab_post_alloc_hook mm/slab.h:516 [inline] slab_alloc_node mm/slub.c:2907 [inline] slab_alloc mm/slub.c:2915 [inline] kmem_cache_alloc+0x1c3/0x350 mm/slub.c:2920 reiserfs_alloc_inode+0x19/0xb0 fs/reiserfs/super.c:642 alloc_inode fs/inode.c:234 [inline] new_inode_pseudo+0x61/0x220 fs/inode.c:928 new_inode+0x25/0x1d0 fs/inode.c:957 reiserfs_mkdir+0x129/0x800 fs/reiserfs/namei.c:812 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x34b/0x730 fs/reiserfs/xattr.c:1012 reiserfs_fill_super+0x2aac/0x3160 fs/reiserfs/super.c:2177 mount_bdev+0x26c/0x3a0 fs/super.c:1367 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1497 do_new_mount fs/namespace.c:2903 [inline] path_mount+0x188a/0x29a0 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x28c/0x320 fs/namespace.c:3431 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Last potentially related work creation: kasan_save_stack+0x27/0x50 mm/kasan/common.c:38 kasan_record_aux_stack+0xee/0x120 mm/kasan/generic.c:345 __call_rcu kernel/rcu/tree.c:3039 [inline] call_rcu+0x130/0x8e0 kernel/rcu/tree.c:3114 reiserfs_new_inode+0x690/0x2660 fs/reiserfs/inode.c:2164 reiserfs_mkdir+0x4a0/0x800 fs/reiserfs/namei.c:842 xattr_mkdir fs/reiserfs/xattr.c:76 [inline] create_privroot fs/reiserfs/xattr.c:889 [inline] reiserfs_xattr_init+0x34b/0x730 fs/reiserfs/xattr.c:1012 reiserfs_fill_super+0x2aac/0x3160 fs/reiserfs/super.c:2177 mount_bdev+0x26c/0x3a0 fs/super.c:1367 legacy_get_tree+0xea/0x180 fs/fs_context.c:592 vfs_get_tree+0x86/0x270 fs/super.c:1497 do_new_mount fs/namespace.c:2903 [inline] path_mount+0x188a/0x29a0 fs/namespace.c:3233 do_mount fs/namespace.c:3246 [inline] __do_sys_mount fs/namespace.c:3454 [inline] __se_sys_mount+0x28c/0x320 fs/namespace.c:3431 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae The buggy address belongs to the object at ffff888097478c20 which belongs to the cache reiser_inode_cache of size 1424 The buggy address is located 1232 bytes inside of 1424-byte region [ffff888097478c20, ffff8880974791b0) The buggy address belongs to the page: page:ffffea00025d1e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888097479840 pfn:0x97478 head:ffffea00025d1e00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010200(slab|head) raw: 00fff00000010200 dead000000000100 dead000000000122 ffff888018116500 raw: ffff888097479840 0000000080150014 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888097478f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888097479000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888097479080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888097479100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888097479180: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc ================================================================== --- This report is generated by a bot. 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