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 D5BBF2BD015 for ; Fri, 7 Nov 2025 10:42:03 +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=1762512126; cv=none; b=L5E+V3szKAZU0br84zF+nx3DKH9RsYTDUl3eiC/F9kU3oJybYBPwoK8W+0z+H0bz43S5vmt8lLnm+i35ylnG4EBGH/JC+L6Zx7O7kC5fSn/T4ig8N5uGsKjtDzBmt0pGa4MwS0ita953vc2yRJlCQyjHAL/FG4CgFlZVfWTenCY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762512126; c=relaxed/simple; bh=UwzNX5gtnosq5BPJI2D8ARsj73GqkPD9Iy/EIFiwA1U=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=pfu3zE8JcXXDY8DONoxhr9f3kvslRuqpmIDY9huVMfN9IZsZnCPJaLx3eYLjfTP5lr5mv/Tj039VyhvOUPNQ8UvWXTEdIm2V9vH2rdWqglzAQtxtigSV8hLzy0xreZyht7Te+e794qQNCg/Ta440KtWGSX/8RUnbB+8BrfxfJgc= 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-433154d39abso22201435ab.0 for ; Fri, 07 Nov 2025 02:42:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1762512122; x=1763116922; 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=j2gJiFgpwGwBpB12E7bsJT/H8egDLqWQaD2OUO9Hlmk=; b=EOZr+Z4zpqtHI1LBLO4wQFu3UhXaXHA35WP1HUktRz3tc+A9CLKwxAaORsyWPfPZvF pA8pGABz+rIm9vs3Cpw3+4aPnN4Zfp9CDo+gLrvekTLMclpANvEVGJdduAjNc7I03Z1K O7h6WCYcBsnudeiJN76S/FNKdOt1cHWzyqwFbau8khTVMw1G3i0bQduE9RUpuANN5Fcv qgmPbDZvsm6gFYK2vFkEBOZ0thTxTChByhVRUKEoBJcHAeduRGMgLBM8gBJydzqIduSI +nd/j6yxr2Aa2diGYgRlBxOa5rSuaw2hfIw2ruFG2C77q8zzW91p2hmywpKidqIIyonJ xMDQ== X-Forwarded-Encrypted: i=1; AJvYcCU0YvwWywmceVPfAJ63aAhVlxnP5qsAp3jQIQPbJqcmT3fsO2slIQoyl16nAY9N2Zx9b6cVHonP8bQF444=@vger.kernel.org X-Gm-Message-State: AOJu0YxHcyddcmleqSI/HFKySSoytrHeMHwR/eVD8/oGKHj3kXDd07IA 3nHhcx2eN0BVUOvpU5vyHt3qDuhVOSSmSltSMdU3UZnFRSZIM8jPrluORfAaAvyEJSNwzFlJGhv JPfKP64QS08XwD00dg1b3Bt2Dq+GJtNhkgHPBm2shL33Y5wAcHbgIN4Nu7FU= X-Google-Smtp-Source: AGHT+IH1jzOUVK60SJvlAUIWobqq/mllrrQrSknYb8JZ8ZWTzx0s2evme+8M8KXLFX+k3Pk45XNsB4IEI+phBKOxz5RE0nhXmed4 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:c243:0:b0:430:bf89:f7f7 with SMTP id e9e14a558f8ab-4335f4a0f7dmr45779325ab.13.1762512122057; Fri, 07 Nov 2025 02:42:02 -0800 (PST) Date: Fri, 07 Nov 2025 02:42:02 -0800 In-Reply-To: <20251107101419.15312-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <690dccfa.a70a0220.22f260.0038.GAE@google.com> Subject: Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.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: WARNING in alloc_pid ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at __ns_ref_active_get include/linux/ns_common.h:288 [inline], CPU#1: syz-executor/6396 WARNING: ./include/linux/ns_common.h:288 at alloc_pid+0xad6/0xc70 kernel/pid.c:285, CPU#1: syz-executor/6396 Modules linked in: CPU: 1 UID: 0 PID: 6396 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_get include/linux/ns_common.h:288 [inline] RIP: 0010:alloc_pid+0xad6/0xc70 kernel/pid.c:285 Code: cc e8 7e d6 34 00 be 02 00 00 00 eb 0a e8 72 d6 34 00 be 01 00 00 00 48 89 df e8 05 d8 0c 03 e9 84 fa ff ff e8 5b d6 34 00 90 <0f> 0b 90 e9 2c fd ff ff e8 4d d6 34 00 90 0f 0b 90 e9 5b fd ff ff RSP: 0018:ffffc900035d79d8 EFLAGS: 00010293 RAX: ffffffff818cf9d5 RBX: ffff888075669998 RCX: ffff8880279b1e80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff888075cab901 R08: ffff88807566999b R09: 1ffff1100eacd333 R10: dffffc0000000000 R11: ffffed100eacd334 R12: dffffc0000000000 R13: 1ffff1100eb95751 R14: ffff888075669830 R15: dffffc0000000000 FS: 000055556cc43500(0000) GS:ffff888125b79000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7cfd1156c0 CR3: 00000000246e4000 CR4: 00000000003526f0 Call Trace: copy_process+0x18e7/0x3930 kernel/fork.c:2196 kernel_clone+0x21e/0x840 kernel/fork.c:2609 __do_sys_clone kernel/fork.c:2750 [inline] __se_sys_clone kernel/fork.c:2734 [inline] __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2734 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7cfc385e13 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffeab10e9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7cfc385e13 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055556cc437d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 0000000000021378 R15: 00007ffeab10eb70 Tested on: commit: 9c0826a5 Add linux-next specific files for 20251107 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=162110b4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4f8fcc6438a785e7 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=12afd812580000