From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.167.199 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792780865; b=1nbpQow84XuaJ8ETN5ToacL64UDS0/PH9+wIkRBx+clkfhvq7hgBSWlGXQ+r4u/4DkGs p96qoeO79l33hc3M42RV6uzUYahFfmrPvmc+7Obz6cnPtWF9mVc1NS2nPusp4HyDogXSr dTMpr5/MfPu8P8vyvuKBKeEXs7mCw3Ebj2jtfrr9OoNT+D12TGacCE00GRThT1jMoMC9v AN7Ma3z149ekHpr5bKSIePwmRtX5N4J0fI42Cqe0k9gFb7GFM0jwB+WimZqueQC46JOAd A7KYyd1m2QUpizHef14wGhmo/0DN1veFQR44Pr6GIXbf+9Fsz8/RQ+B0Cb9fGAjdmNg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792780865; h=DMARC-Filter:Received:X-Google-DKIM-Signature:X-Forwarded-Encrypted: X-Gm-Message-State:MIME-Version:X-Received:Date:In-Reply-To: X-Google-Appengine-App-Id:X-Google-Appengine-App-Id-Alias:Message-ID: Subject:From:To:Content-Type; bh=k9tAcHgucxjRPGnV+rTtZYrbnfzK1zdVFYrqtBoNa+c=; b=QK47Jwk5uE6LQU7sbq7URmXHtCgxIOtABe0fakM55PnhdwF28xmtNbqFwpfsilYseBsx g0ati3jVqW67g+pKoBj3EKKltK9LcOoW4uGiPZ9FD8K0GRB5TD6osllZL1Q9ZsYy8qhoD ux52gq04feMH3TQqaYvlVDVE5XK78N6/zrFb11w/XYscopWkSu3aU1hJd/377+XYEUj/v yU8MwKglWqFSEBhAb05VPgBu6JkBIYBcHl4vohc6KiRn5z3E8+ViIEFcY7yxFzpIo7gmQ D3XJncLUdxtM+xGNG32Bt6XlX+s5zi5l8oxmfZFGzAv6C9LMyRwx2yLm4kas8ePUdcw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.remote-ip=209.85.167.199 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B9FA606A31E for ; Fri, 23 Oct 2026 18:41:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 6B9FA606A31E 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 5614622812f47-4cc89e86e4dso1857745b6e.2 for ; Fri, 23 Oct 2026 11:41:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792780864; x=1793385664; 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=k9tAcHgucxjRPGnV+rTtZYrbnfzK1zdVFYrqtBoNa+c=; b=gV03fkiiGgvmxuWtAI5lDGWM67mgaU+3Ux+mtN6XOl37OLizKPbzuPMxtM2CsrbEQt tpWVVCal54DLpr6vvyqXuQDA+puRoX4ctxGtdvMkC++z+R/uIoiBN9o4nyEZy6AYwWEB LqghcZXZNKSkY78ra21Mt6Nt/T7srjcp9/1Zn6F/xlzYskK+puQgGRVHoxKwH+opQeeY B+qoZ1hkuFXfCoszJgJKrYIt5ndmQaQxGcMzvSZOfCVE59RPqPwVt2ONif3T9Cqwv3Gw nabetmCVm/Zmtpg6zTj2zk7pLLOJ1zsk5J4ahvY5aRPQqyEpLn/hhqkTLWR3/3L93IaK s70g== X-Forwarded-Encrypted: i=1; AKwUvBwpURWDdzEOFHwkDtiVmULor0Vo0Mh+gzhr5s6rj/JUz7q9n29OtLF17OQS2C9jfo3zqu9xPCX9ENpx@vger.kernel.org X-Gm-Message-State: AFq9FYJdayJ1eV0wxidcnnXPjfnf0OxMKEA4dHLiu84Edjl64LtNDWb9 Jfv4DcKs3CAsCvoePpU3A47yB6tbvmP3yyher3Kvk2EG1J9Ygmc0rgfAS3nBFMgVjH285OnWwXc +hHZup0guBZQKwWeh6BHlnZ0HMGou4LJwwWTPpn7qs+p8TdPUYTFxgfgTStY= X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Received: by 2002:a05:6808:308a:b0:4d6:90d3:e18f with SMTP id 5614622812f47-55c0026b6eemr56404b6e.46.1792780864428; Fri, 23 Oct 2026 11:41:04 -0700 (PDT) Date: Fri, 23 Oct 2026 11:41:04 -0700 In-Reply-To: <67141631.050a0220.1e4b4d.002e.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6adbaa40.a6443767.132891.0000.GAE@google.com> Subject: Re: [syzbot] [ext4?] possible deadlock in ext4_writepages (2) From: syzbot To: adilger.kernel@dilger.ca, hdanton@sina.com, jack@suse.cz, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu, yun.zhou@windriver.com Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit 2c3447a9c4fe17c713c014f79d2df485f3829c0e Author: Yun Zhou Date: Fri Jul 24 10:02:55 2026 +0000 ext4: validate EA inode i_nlink in ext4_xattr_inode_iget bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13436931580000 start commit: f5bbbfec59b4 Merge tag 'probes-fixes-v7.2-rc7' of git://gi.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=158601bb8cb292dd dashboard link: https://syzkaller.appspot.com/bug?extid=eb5b4ef634a018917f3c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fe5079580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e0d2c6580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: ext4: validate EA inode i_nlink in ext4_xattr_inode_iget For information about bisection process see: https://goo.gl/tpsmEJ#bisection