From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) (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 78110C2FD for ; Sun, 29 Mar 2026 11:07:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774782426; cv=none; b=WR9hxfueIECyMOJAoPiLwBiL6y1QjSqtBMgLig54Y2TiLiVk7twDVwga4USIZJ89O5AcvFhQN1JHYqWTPF08dVG86q5TK0j0Q0d8eeHbkS1BTM8fYlhVh9Wuc/skJH4CJqpz+0j6St6peeX/5IiyHZ32NuqHEz46U+Phhcvpk/s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774782426; c=relaxed/simple; bh=WKzc0CxrvboDL4STAEhRS9G20FAYLEjNcwpiIeamEF4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=uLefXCx+o0I3FtOnyXQCCnK8VtXBrMYGIUivuLsE7LteiKA9Pb0VKs+vu14NZatel+m/XwjcO+LTgTdc7wnJbbmpbPxVCWhZz6yVfccuVVOdt/9gXBUlW99tmvawNhY9clPGJNOYUI8cgVVyvJ3Q46q8h3o7Pvks67gft9hZvKI= 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=209.85.167.200 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-f200.google.com with SMTP id 5614622812f47-467f7743d64so10100525b6e.2 for ; Sun, 29 Mar 2026 04:07:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774782423; x=1775387223; 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=AXNBOqMSGAhobcSaeLr+pIBAy4U7IxygJ0KFGKEFh8U=; b=QHxnJCCoT06VScJP6UybyVI/NFqiws9E3rDwHBvivvvlAZkIkz4mKuN3CWvAwZmZnH OHXOTBER5k25+4S5XODogXLisZR0NzwHwhN0JEm/Ts1+Y5ktoQ/EpJw0FmPrjwNsndAP SLalxhIFcYzcsJiD4EFoHQRnqyOlYj6BN7D6elTPVTzLEK4Z33GMwUuAN0Ltg4U9wSdD uIyyCEIenztFmp1l5qpIsxLrQES3n5ReW90HOV6RLA318Lgoi34H4/IKPTnp3xcJVPwK vuQZbWUn54WQcPChKPw+Y7Bp7a4jwqglqwlcT/M4RU5odVyssxIuUJSCRWsbdMF08Jg3 c71w== X-Gm-Message-State: AOJu0YypF3eHbv+doMKNOOOCzbejOAyzCiG3L4KTKonTdXIapJaUFB5L /Y6TzGR/sXuzXoQfO9kJMlYkrbvIgzxrPOAORnmvGGHCVtsu2jvM/9fYUJSHVAFHmIZgOFvVtHO MaqkcghpI7x6M24PBGlf9hkSqbKtHfdhJd3cdug/UDp/TdWmDcsVp8upN66s= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1344:b0:67d:f88f:d853 with SMTP id 006d021491bc7-67e185f6571mr4425675eaf.6.1774782423602; Sun, 29 Mar 2026 04:07:03 -0700 (PDT) Date: Sun, 29 Mar 2026 04:07:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69c907d7.a70a0220.97f31.006d.GAE@google.com> Subject: Re: [syzbot] [jfs] general protection fault in txEnd From: syzbot To: linux-kernel@vger.kernel.org, rafad900@gmail.com, skhan@linuxfoundation.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: VFS: Busy inodes after unmount (use-after-free) VFS: Busy inodes after unmount of loop0 (jfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:656! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6453 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:generic_shutdown_super+0x2c4/0x2d0 fs/super.c:654 Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 06 7b ed ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 60 c1 b9 8b 48 89 de e8 ed 52 e8 fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900036c7d00 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffff888030f16668 RCX: fd47a21cb303a300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110061e2cf0 R08: ffffc900036c7a87 R09: 1ffff920006d8f50 R10: dffffc0000000000 R11: fffff520006d8f51 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e99a160 R15: ffff888030f16780 FS: 0000555583959500(0000) GS:ffff88812576d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffe3d12ff0 CR3: 000000007abd2000 CR4: 0000000000350ef0 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1725 deactivate_locked_super+0xbc/0x130 fs/super.c:476 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:67 [inline] exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline] do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4217b9c157 Code: a2 c7 05 3c 84 23 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fffe3d13178 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f4217c2f33b RCX: 00007f4217b9c157 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffe3d13230 RBP: 00007fffe3d13230 R08: 00007fffe3d14230 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffe3d142c0 R13: 00007f4217c2f33b R14: 0000000000021b21 R15: 00007fffe3d14300 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2c4/0x2d0 fs/super.c:654 Code: 03 42 80 3c 28 00 74 08 4c 89 f7 e8 06 7b ed ff 49 8b 16 48 81 c3 68 06 00 00 48 c7 c7 60 c1 b9 8b 48 89 de e8 ed 52 e8 fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900036c7d00 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffff888030f16668 RCX: fd47a21cb303a300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110061e2cf0 R08: ffffc900036c7a87 R09: 1ffff920006d8f50 R10: dffffc0000000000 R11: fffff520006d8f51 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8e99a160 R15: ffff888030f16780 FS: 0000555583959500(0000) GS:ffff88812586d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000563cc45995e0 CR3: 000000007abd2000 CR4: 0000000000350ef0 Tested on: commit: cbfffcca Merge tag 'trace-v7.0-rc5' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=156eceda580000 kernel config: https://syzkaller.appspot.com/x/.config?x=df6930c3610cf79 dashboard link: https://syzkaller.appspot.com/bug?extid=1d096d31de6a0491b55e compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=1684f1f6580000