From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f80.google.com (mail-io1-f80.google.com [209.85.166.80]) (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 2793A8F7D for ; Thu, 2 Oct 2025 16:01:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759420890; cv=none; b=IUYGzkQ4zVz/qijvcyb72kVFrBsqq8MmYHBX9lSu8E6Q6+wah5/oIAEiKZoXRd1HsvHot2N4tOK7iGop+y2aBJUnKEjV64xJJEDRLJueePPHH5623qmCdEocjZnxnO7rxidUuQotto8BVcpxQjSy9wNNFN0DLh1dwQXcTKA80YA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759420890; c=relaxed/simple; bh=w2Y2QF2llxGF8shdV8sbkQl9VQBi962VNSCw5q7OYcs=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=S2ZOXi34hx3VsQBE+tAZogqxUQdG2Qu52hcdeRNpsUxv3LhLIOa0B6dm+fc5EMzH7zdoeBJ0t2ZwepnNTMtTacRfZD4TRluzi9ueF+MaTUHMA36fkIeLm07IaFK8+IScLBmDDL/eN3/Tx/vjl1fdOh9v6AP8twMuyTJ2rk245lQ= 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=209.85.166.80 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-io1-f80.google.com with SMTP id ca18e2360f4ac-9374627bb7eso295763639f.1 for ; Thu, 02 Oct 2025 09:01:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759420888; x=1760025688; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=6Jz1T9sSuQKTB6Iy2gijMr4H81ISh/9XX5h9fzwPqRg=; b=e5Vgr9Wx8g4MA1sVs3vaK7oh9/CWc+6MP9xhsWmIfY3tpyXXKZfbwZEOgdf3MCTDZi eUm+KmgJtFvu+/w2CIaZrOibw1mt4uHop9bxLOZOdvLVS7mQ2TpvKJT//Y13lBvW1wNR ZCbZhSX5vLY53QtDY6nkyyhFYv+EmRb1mD4Z3XwUkNXNhRSzVoJmBsR0apuOIhxhrI/2 HbSxoH/GIHFF311i6OHK7YXQ64jwFZLfhy3hxPG/b+5kSAiq3OuGodUBM6zQyg0IeALx YXXfS/Q0JFftR4dSuCp757BxafKgK534VMX3o9QHs4IlVOLCt7Nc6MSF0jCF500bGyzV G13g== X-Forwarded-Encrypted: i=1; AJvYcCXGBQmCXD5haKwokg/jzp8d7xl7Sa5MQTjACPMNWV0EoMhhqT7saoif22J5li83glH+nhN3OANtxcJvFKI=@vger.kernel.org X-Gm-Message-State: AOJu0Yw471Ce4yfAEsstsKpUOUu8T+d7TIzV4jBmWqgFTGzfrvIcfR3q ps3Tz5Lon+eog0PQlTwUFOq4QinbT8F2asp48qya2nXRjqDM44AH9cR16v0ImZdcQbMnZ+RHJUu UwTGW+WVkncsjVp73aThKenPDU4WjpVRama2qjo/es240esUfj4VpBmUBWas= X-Google-Smtp-Source: AGHT+IHffKavk02Gbend6tu0ZvbYDE2ugTDl2b4vE30bJvYlN+ntr9RClO6SL6k1O2AbMbbG9hI2WRr4z1uSBD9hUQYev1uKiqnu Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:c265:0:b0:428:cd3c:6a3c with SMTP id e9e14a558f8ab-42d8b192b01mr35614035ab.1.1759420887768; Thu, 02 Oct 2025 09:01:27 -0700 (PDT) Date: Thu, 02 Oct 2025 09:01:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68dea1d7.050a0220.25d7ab.07bc.GAE@google.com> Subject: [syzbot] [ntfs3?] [usb?] general protection fault in rtlock_slowlock_locked From: syzbot To: almaz.alexandrovich@paragon-software.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, ntfs3@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 99bade344cfa Merge tag 'rust-fixes-6.17' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15f513a2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=98e114f4eb77e551 dashboard link: https://syzkaller.appspot.com/bug?extid=08df3e4c9b304b37cb04 compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/309f13a7cc12/disk-99bade34.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0d782186486b/vmlinux-99bade34.xz kernel image: https://storage.googleapis.com/syzbot-assets/174f592d16e2/bzImage-99bade34.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+08df3e4c9b304b37cb04@syzkaller.appspotmail.com loop7: detected capacity change from 0 to 4096 Oops: general protection fault, probably for non-canonical address 0xffdffc0000000148: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0xff00000000000a40-0xff00000000000a47] CPU: 0 UID: 0 PID: 11227 Comm: syz.7.607 Tainted: G W 6.17.0-rc1-syzkaller-00214-g99bade344cfa #0 PREEMPT_{RT,(full)} Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline] RIP: 0010:do_raw_spin_lock+0x78/0x290 kernel/locking/spinlock_debug.c:115 Code: aa 9c 81 48 8d 4c 24 20 48 c1 e9 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 48 89 4c 24 18 4a 89 04 39 4c 8d 77 04 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 01 00 00 41 8b 06 3d ad 4e ad de 0f RSP: 0018:ffffc900049ff4c0 EFLAGS: 00010807 RAX: 1fe0000000000148 RBX: ff00000000000a40 RCX: 1ffff9200093fe9c RDX: 0000000000000000 RSI: ffffffff8b620b60 RDI: ff00000000000a40 RBP: ffffc900049ff570 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10053788b9 R12: ffff88808316a1b0 R13: ff00000000000000 R14: ff00000000000a44 R15: dffffc0000000000 FS: 00007f7f773fe6c0(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f79182020 CR3: 000000005aace000 CR4: 00000000003526f0 Call Trace: task_blocks_on_rt_mutex kernel/locking/rtmutex.c:1265 [inline] rtlock_slowlock_locked+0x8ef/0x4010 kernel/locking/rtmutex.c:1851 rtlock_slowlock kernel/locking/rtmutex.c:1895 [inline] rtlock_lock kernel/locking/spinlock_rt.c:43 [inline] __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline] rt_spin_lock+0x152/0x2c0 kernel/locking/spinlock_rt.c:57 spin_lock include/linux/spinlock_rt.h:44 [inline] iput_final fs/inode.c:1886 [inline] iput+0x5c1/0x9d0 fs/inode.c:1923 ntfs_fill_super+0x38fa/0x40b0 fs/ntfs3/super.c:1514 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1692 vfs_get_tree+0x8f/0x2b0 fs/super.c:1815 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3805 do_mount fs/namespace.c:4133 [inline] __do_sys_mount fs/namespace.c:4344 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4321 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7f791a038a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7f773fde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f7f773fdef0 RCX: 00007f7f791a038a RDX: 0000200000000080 RSI: 0000200000000000 RDI: 00007f7f773fdeb0 RBP: 0000200000000080 R08: 00007f7f773fdef0 R09: 0000000002010c10 R10: 0000000002010c10 R11: 0000000000000246 R12: 0000200000000000 R13: 00007f7f773fdeb0 R14: 000000000001f743 R15: 0000200000000380 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline] RIP: 0010:do_raw_spin_lock+0x78/0x290 kernel/locking/spinlock_debug.c:115 Code: aa 9c 81 48 8d 4c 24 20 48 c1 e9 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 48 89 4c 24 18 4a 89 04 39 4c 8d 77 04 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 38 84 c0 0f 85 9f 01 00 00 41 8b 06 3d ad 4e ad de 0f RSP: 0018:ffffc900049ff4c0 EFLAGS: 00010807 RAX: 1fe0000000000148 RBX: ff00000000000a40 RCX: 1ffff9200093fe9c RDX: 0000000000000000 RSI: ffffffff8b620b60 RDI: ff00000000000a40 RBP: ffffc900049ff570 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed10053788b9 R12: ffff88808316a1b0 R13: ff00000000000000 R14: ff00000000000a44 R15: dffffc0000000000 FS: 00007f7f773fe6c0(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f79182020 CR3: 000000005aace000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: aa stos %al,%es:(%rdi) 1: 9c pushf 2: 81 48 8d 4c 24 20 48 orl $0x4820244c,-0x73(%rax) 9: c1 e9 03 shr $0x3,%ecx c: 48 b8 f1 f1 f1 f1 04 movabs $0xf3f3f304f1f1f1f1,%rax 13: f3 f3 f3 16: 48 89 4c 24 18 mov %rcx,0x18(%rsp) 1b: 4a 89 04 39 mov %rax,(%rcx,%r15,1) 1f: 4c 8d 77 04 lea 0x4(%rdi),%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 9f 01 00 00 jne 0x1d6 37: 41 8b 06 mov (%r14),%eax 3a: 3d ad 4e ad de cmp $0xdead4ead,%eax 3f: 0f .byte 0xf --- This report is generated by a bot. 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