From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 432621459F6 for ; Tue, 19 Nov 2024 04:38:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731991109; cv=none; b=o7hVBmUJ+nzItL645YlgtVbkNDudAWkEV9+kPkwecBtdELQ3bPmIyWaDbJZMRi0crvFktjCXSLuGrqzRcuNos2siEwDg7I9fMl9GiYQXAsprJLI/E4yaC5OKhMPl8KvUWTlyh6cXlZsUg7aVd3/PK9qG1vPDXi3wpq6uzw6Sz9E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731991109; c=relaxed/simple; bh=at7JDw2wSlb9prZGsNeSTPouS27shd0nnref3sxOBew=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=upICpIvUiq4XH/DRe5J7Y1OELYrvhOXiPc57M1aT24ELrBixZFI8Tss2f3njzc8nJAkF2HYG1bBBOdzLOPlJS8dyXhgxSuNEyZoheI/zwY59j4ohJxWhs/jybkI1w38ZdMv1A7zpQh3nsp9kGI5oIe1iYREvIqg0fmsbtnjJ0/E= 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=209.85.166.198 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-il1-f198.google.com with SMTP id e9e14a558f8ab-3a763a5464fso25875275ab.2 for ; Mon, 18 Nov 2024 20:38:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731991107; x=1732595907; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=PyhytCsuWindymjmcYTPQlyB9D+gYqumk2oyZHJvxds=; b=iGhRCv+1C1M2/b6o8yN7IDXJHlUdcy5dCwyZWIPtX5rIoQOgQsdhm17jfuPIc/84RV jhOJFeIQx3gYaxMvWUberI60XPovdSJ4UW2EgghXlSSjYAZVaZAA7dXD8duJcz7hzcih JcYia/dK9tut9nA2Z61su+rK8o8pFJz8gHoRydSya8PpHaf3m/JgrKoaeYGkdDzlTcct vFfTJxVVvNAHxDqy/67b4P4W45tUvK/QB5n6bzM/5INuijMuAMIXdG0WjjaKwE09dYas HGhagHs4J7lnP7enoikORyPS/vVN11sQTLp2Vfy101+KvdGOzpkv4Oo9QCDQtByW9YRE 9vLA== X-Forwarded-Encrypted: i=1; AJvYcCWOHVJTMTS65pPAJKlatTGvumYohKE/7yoJtq2n9her8cVWLxnTZN6j7Y+JsCS4V5DdPfxOCdQQ0w==@vger.kernel.org X-Gm-Message-State: AOJu0YxV5KLaVbAG3gywn0/f2HhKWiee60liEvTh78be11B2k4NBh/Mt vtx+F5WqORUb6hoQJnHIvGXqbVkpdplGzouyFOU18g8KMEzE46Y4npefsLfBiVVju2NbtM4xVsV gkeg8PXYtzcypUz0pxMjJ5RTfyIWb3Xhho7HyG0xGiLsrtSnTTzyEcc0= X-Google-Smtp-Source: AGHT+IHA5E9xSdc8gM4f7gYs8Mm9n9qUSQftEHTZ404DRN4cM+4ZCbQGJbF9HOpVXfhPFHW40PnGfWeFs1u3+F6oJGN3fSBIuQRH Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3205:b0:3a7:1cf9:2427 with SMTP id e9e14a558f8ab-3a747ffa0bemr149373155ab.2.1731991107438; Mon, 18 Nov 2024 20:38:27 -0800 (PST) Date: Mon, 18 Nov 2024 20:38:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <673c1643.050a0220.87769.0066.GAE@google.com> Subject: [syzbot] [io-uring?] WARNING in __io_uring_free From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: cfaaa7d010d1 Merge tag 'net-6.12-rc8' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13005cc0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2aeec8c0b2e420c dashboard link: https://syzkaller.appspot.com/bug?extid=cc36d44ec9f368e443d3 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-cfaaa7d0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/63eae0d3e67f/vmlinux-cfaaa7d0.xz kernel image: https://storage.googleapis.com/syzbot-assets/6495d9e4ddee/bzImage-cfaaa7d0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cc36d44ec9f368e443d3@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51 Modules linked in: CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__io_uring_free+0xfa/0x140 io_uring/tctx.c:51 Code: 80 7c 25 00 00 74 08 4c 89 f7 e8 a1 8a 49 fd 49 c7 06 00 00 00 00 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 37 ad df fc 90 <0f> 0b 90 e9 6a ff ff ff e8 29 ad df fc 90 0f 0b 90 eb 84 e8 1e ad RSP: 0018:ffffc900004279b8 EFLAGS: 00010246 RAX: ffffffff84b53cd9 RBX: ffff88804fc3b8e0 RCX: ffff88801b7e8000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff88801f058000 RBP: 0000000000000001 R08: ffffffff8154d881 R09: 1ffff11003e0b005 R10: dffffc0000000000 R11: ffffed1003e0b006 R12: dffffc0000000000 R13: 1ffff11003e0b120 R14: ffff88801f058900 R15: ffff88804fc3b800 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005594393ad338 CR3: 000000000e734000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: io_uring_free include/linux/io_uring.h:31 [inline] __put_task_struct+0xd5/0x290 kernel/fork.c:975 put_task_struct include/linux/sched/task.h:144 [inline] delayed_put_task_struct+0x125/0x300 kernel/exit.c:228 rcu_do_batch kernel/rcu/tree.c:2567 [inline] rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 run_ksoftirqd+0xca/0x130 kernel/softirq.c:927 smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup