From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f205.google.com (mail-oi1-f205.google.com [209.85.167.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D298B1A9F8C for ; Tue, 23 Jun 2026 03:01:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782183691; cv=none; b=TJA0NptvkOmbW2EQTeghtI587oY7dYHQAKaFn7VWoVGqitY1YLr0hl2NwzZD4871uyh6bE+vYTVkXz010s/2/n7hwxb/IpGJbssng4qEUJXu7aGmA+N9W3hvRqXRa5TySWY8QLx79doMLHcNRIam8YLVDvvQIAY9IGo4/h3J2yE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782183691; c=relaxed/simple; bh=AtfGsO2YgOoLZ9BbKUlUiPafF+8rZx56OX5K80auQBM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=K3RV0XHiAH3BYkNOUdnof08AfogtSm1zjuyj6fPSMEKZ18D16FN9rKqmCg7vlYKqzjc8No+RiXRSy3oia8MKPsGwskUj8TVE3JYsYZIq2OBUumfEGNPYQ3V6/vK7zMABZ8qFuHNC15jhhvdhm9A545jXXdqhxZzZNJZ/p/UhSPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.205 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f205.google.com with SMTP id 5614622812f47-486e64c8edeso7037331b6e.2 for ; Mon, 22 Jun 2026 20:01:29 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782183689; x=1782788489; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=SEV3A/55SmqgO3F+72x5NaSc2BBwlk6KFyIUEu1aVro=; b=o3kGFK2Owx0k3G+dctTZJ6gWoFd++mz8M3/Vx4E2rt3dzHqY3KKfQZuprHPBZog91S t/wqcFEap488zbZNa9j8o3d5v+O0JwfAEZdTNJwD927MnMK7lSQCDSfWA3Nrap10txxn 8+FS+I0kCv/iIsYrLLM2Uji2ncSAqGtNYrmagbgjTwpFy+r0kA1c7HXoyYvDk/oKDNVA cCGq9OU7aNYF9q5/S+DCwZBEibGw0Wef84evpWqT10ctbfQ/nMd/1jwC076SPCozdokg df2b3cxZ8SCXX7r1cERzEc9uPrQ7PUzB2UydTdAYVDzJzQFHI6jTXPtOAJE0PeUUmcL2 fofQ== X-Forwarded-Encrypted: i=1; AFNElJ+i8kpdlDl3bkiS+AS35AEqpWaVEY/znurML0uTDUAYpk54+u1DobVt0z+qyexSRDf4y69QRre0zhxKAow=@vger.kernel.org X-Gm-Message-State: AOJu0Yx8LIe06eVYBbj+WtUhpwL6DozOMTHo7RAB2p984q06HcSwtoZc aCawtg29HVAyB6KV9vmpJ2UwupRvgMqoPBjH3bu8DRBVJLwwfrnPJRV+DlQQHDm2/BDUUgVL5+6 7OHbn60smQ83eXUsXbPHNwbptx4Pf7/mmGxFDphW0xYrKAkWv/vqIOk84chk= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:444b:b0:46c:e542:cc3e with SMTP id 5614622812f47-48f2753377amr902862b6e.6.1782183688913; Mon, 22 Jun 2026 20:01:28 -0700 (PDT) Date: Mon, 22 Jun 2026 20:01:28 -0700 In-Reply-To: <6a14101f.050a0220.2385e8.0011.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a39f708.ac26f6c2.9a9c4.0004.GAE@google.com> Subject: Re: [syzbot] [ntfs3?] WARNING in attr_data_get_block_locked (2) From: syzbot To: almaz.alexandrovich@paragon-software.com, linux-kernel@vger.kernel.org, ntfs3@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has found a reproducer for the following issue on: HEAD commit: 1dc18801be29 Merge tag 'i2c-7.2-part2' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17ecdb7a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=94d9c5c9d8d33570 dashboard link: https://syzkaller.appspot.com/bug?extid=7be6ad5cb228286af3e3 compiler: Debian clang version 22.1.6 (++20260514074242+fc4aad7b5db3-1~exp1~20260514074407.73), Debian LLD 22.1.6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101cdb7a580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17dea7a1580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2b813bcdd826/disk-1dc18801.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/42eb0df4dd35/vmlinux-1dc18801.xz kernel image: https://storage.googleapis.com/syzbot-assets/5e2abf42fb92/bzImage-1dc18801.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/217841d6611e/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+7be6ad5cb228286af3e3@syzkaller.appspotmail.com WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ntfs3(loop0): Different NTFS sector size (1024) and media sector size (512). ntfs3(loop0): Failed to load $Extend (-22). ntfs3(loop0): Failed to initialize $Extend. ------------[ cut here ]------------ 1 WARNING: fs/ntfs3/attrib.c:1237 at attr_data_get_block_locked+0x1936/0x2610 fs/ntfs3/attrib.c:1237, CPU#1: syz.0.17/5827 Modules linked in: CPU: 1 UID: 0 PID: 5827 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:attr_data_get_block_locked+0x1936/0x2610 fs/ntfs3/attrib.c:1237 Code: b0 b1 a7 fe 89 9c 24 90 00 00 00 41 29 dc 0f 83 cc 00 00 00 e8 ab af a7 fe 41 bf ea ff ff ff e9 7c fa ff ff e8 9b af a7 fe 90 <0f> 0b 90 41 bf ea ff ff ff e9 68 fa ff ff 48 8b 84 24 d8 00 00 00 RSP: 0018:ffffc9000476f9a0 EFLAGS: 00010293 RAX: ffffffff831d47f5 RBX: 00000000ffffffff RCX: ffff888036b38000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000476fbe8 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f1385f R12: ffff88804c3010e8 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00005555611e4500(0000) GS:ffff888126242000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32863fff CR3: 000000003f434000 CR4: 00000000003526f0 Call Trace: attr_data_get_block+0x250/0x310 fs/ntfs3/attrib.c:982 ntfs_fallocate+0x1048/0x12d0 fs/ntfs3/file.c:702 vfs_fallocate+0x663/0x7f0 fs/open.c:338 ksys_fallocate fs/open.c:362 [inline] __do_sys_fallocate fs/open.c:367 [inline] __se_sys_fallocate fs/open.c:365 [inline] __x64_sys_fallocate+0xbf/0x110 fs/open.c:365 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff0d001ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc29a8c788 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007ff0d0295fa0 RCX: 00007ff0d001ce59 RDX: 0000000000080000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007ff0d00b2e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff0d0295fac R14: 00007ff0d0295fa0 R15: 00007ff0d0295fa0 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.