From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (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 A451C377AB1 for ; Mon, 12 Oct 2026 13:11:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791810665; cv=none; b=dP/KsllUiC5wzNLDO+dCG6Z43gmlzsXRJFj6M2to481V8PZ2OfokvzRqayHh189Q42o9tgA24cqkOBbv5u2Z6cWVNL0GBduprBD2mGWqpbiaI1lS1vLz02VeMH3qLjC8T+I9DBCeRUc8xPDl7UnPfXqcVvDWUEuM3gHflh2G01k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791810665; c=relaxed/simple; bh=8N0h8NHIy9ex+81WQvhVD7gxuaoQhGI7HLQa8M+5wSY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=BofSIYSac7ef78YWpTvbG1VOEwPUv9OS/Fl8ktW3jMRcyzy9sm/Lxu4mOnmwiHCPteYtdAeTsjoAJafT6rI5o2XAALvEh3HcvN30VTz8cMCntNjZT0TqAU8A9Uul4WLRmhCPEw4y7MJ9Lq8rT7DOSq4nlefujQWAOFrJ8rkX3UQ= 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=209.85.167.199 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-f199.google.com with SMTP id 5614622812f47-4d2f0f77124so2604769b6e.3 for ; Mon, 12 Oct 2026 06:11:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791810662; x=1792415462; h=content-type:to:from:subject:message-id:in-reply-to:date :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to:content-type; bh=Vh9H+kbybr7CPInyXIXpzuYQjvuMFEq9QfyGFS6VpGI=; b=nf76dRfIJObAugZnU36XT1vEmNtp4bItQJeKZrC8ZM6A1RFqmDPr7cieIiR7UODVK/ 9G3aqWqMakJ1Hk94DltJSgUH4OLqdDhUzKf6apBj5ffxiNQMXp5YEsXTHPvhp9kFQF7S l0v7nHlwvDR7inwYjuPAgQ3ssnFN1R+lTGI456pw21JHru2PIGJCCtL3sdIBwc4eH0UX Baqvt3UMxXAuHcHJXV29GqyqVU6u5v42ay6qWb07XfrugB6wAVJChY9ubdoHVcQqdrUh hkjuCpRqBJhDBURMrYyzefl2tXw0DjnPTxo4uUOpnMmQCbdRQGNoJNZod4Df8nLoDlxf UUHg== X-Forwarded-Encrypted: i=1; AKwUvBxNdsFRZ5//tqINvoX2V/J0HZ1UKt3uzZcDzpjLpt4BFiuw5zm3P80X6ZpIYgkH5FPMY00uJd3eNWdaKLs=@vger.kernel.org X-Gm-Message-State: AFq9FYL86Lk4OFjcHJ1VJzE6umFHE4paxEbZ9kDycT9RXM32qCG1ofYK HcTI3flG4oqrj13KayRhL/s7NisH3Ig4QAYCh8lNCCl4IEb8rXyv8k7MTt5wtxyahIUmT/mjOvB AIMnWEQe/1E4Gr+PM/sJU0zfmvlN21tQ9r6NE7e/NMc6iiFGxxcO7jc4dJi8= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1304:b0:4fb:ac9b:b06a with SMTP id 5614622812f47-50c54170d05mr7623857b6e.48.1791810662600; Mon, 12 Oct 2026 06:11:02 -0700 (PDT) Date: Mon, 12 Oct 2026 06:11:02 -0700 In-Reply-To: <20261012124158.498-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6accdc66.0e5b5d80.2c029c.0578.GAE@google.com> Subject: Re: [syzbot] [nvme?] BUG: corrupted list in nvmet_fc_remove_port From: syzbot To: hdanton@sina.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: BUG: corrupted list in nvmet_fc_remove_port non-slab/vmalloc memory list_del corruption. prev->next should be ffff888042a5f220, but was 0000000000000000. (prev=ffffffff9aecd340) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 6805 Comm: syz.2.84 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 8b f8 37 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c bf 58 fd 49 8b 17 48 c7 c7 40 6e cc 8b 48 89 de 4c 89 f9 e8 27 88 4c fc 90 <0f> 0b 4c 89 f7 e8 5c f8 37 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d RSP: 0000:ffffc90005157c30 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888042a5f220 RCX: 112f50d9f18e7400 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000201 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101708490b R12: 1ffffffff35d9a68 R13: dffffc0000000000 R14: ffffffff85f7e820 R15: ffffffff9aecd340 FS: 00007f076720d6c0(0000) GS:ffff8881249bb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564cae572950 CR3: 00000000361dc000 CR4: 00000000003526f0 Call Trace: __list_del_entry_valid include/linux/list.h:140 [inline] __list_del_entry include/linux/list.h:261 [inline] list_del include/linux/list.h:275 [inline] nvmet_fc_portentry_unbind drivers/nvme/target/fc.c:1281 [inline] nvmet_fc_remove_port+0x179/0x340 drivers/nvme/target/fc.c:2931 nvmet_disable_port+0x13e/0x1f0 drivers/nvme/target/core.c:400 nvmet_port_subsys_drop_link+0x1e8/0x210 drivers/nvme/target/configfs.c:1123 configfs_unlink+0x44f/0x6b0 fs/configfs/symlink.c:258 vfs_unlink+0x27b/0x6e0 fs/namei.c:5678 filename_unlinkat+0x3d3/0x610 fs/namei.c:5748 __do_sys_unlinkat fs/namei.c:5777 [inline] __se_sys_unlinkat+0x83/0x1a0 fs/namei.c:5769 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0767bce1d9 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:00007f076720d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007f0767e56090 RCX: 00007f0767bce1d9 RDX: 0000000000000000 RSI: 0000200000000780 RDI: ffffffffffffff9c RBP: 00007f0767c65888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0767e56128 R14: 00007f0767e56090 R15: 00007ffc73e653d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62 Code: e8 8b f8 37 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 4c bf 58 fd 49 8b 17 48 c7 c7 40 6e cc 8b 48 89 de 4c 89 f9 e8 27 88 4c fc 90 <0f> 0b 4c 89 f7 e8 5c f8 37 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 1d RSP: 0000:ffffc90005157c30 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff888042a5f220 RCX: 112f50d9f18e7400 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000201 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed101708490b R12: 1ffffffff35d9a68 R13: dffffc0000000000 R14: ffffffff85f7e820 R15: ffffffff9aecd340 FS: 00007f076720d6c0(0000) GS:ffff8881249bb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564cae572950 CR3: 00000000361dc000 CR4: 00000000003526f0 Tested on: commit: 24a19b95 Linux 7.3-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=131aa9c9580000 kernel config: https://syzkaller.appspot.com/x/.config?x=df4bbab1c2172b9f dashboard link: https://syzkaller.appspot.com/bug?extid=c98b21427617af7f547a compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=10728f15580000