From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 0DE4C63C for ; Wed, 3 Jan 2024 00:40:05 +0000 (UTC) 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-f200.google.com with SMTP id e9e14a558f8ab-35fda7cdff8so113531995ab.0 for ; Tue, 02 Jan 2024 16:40:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704242405; x=1704847205; h=content-transfer-encoding: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=RJf7vSGa/mloGWPSH35KgZw/pf1sF+YVSpzDDB0QvDE=; b=P6ottgWQhxo4O1/aoHbYCNpKBftTZhec5isO0eMrO+MGkmkpTHlJv71PMnV2HPfZvx vhpdAAh57ixkrCvp/rowm5/Jtnew6+dAUImaZZM8NSpFhlBdP+VqHWvbCAdlZsjaGYjK hwMW4gj49bt8jQWSDe6mIGVg1zsukxHSaR4cEyee+sK1Q5aawx8d81cM4h3Dp/eZok2b erhUa1G4qmYygAPSyrSHNzCOQ/hwBkrOswh6EYKaLADRzL6xSQ8UWnK/TgWW8YALe/DV 7ijewfUieFZkyTjJ4PUSa3qOisVbS0Gwusvi0WcB+Xfj0kP7l0qSNYNjlzIiFBusjOes 8dIQ== X-Gm-Message-State: AOJu0YwnUXBctSQkcEw+foG+3/aDWMaMtR6iLIfTXSKK/k2qGqnxG88y Zj8ARDKPOACK/xs4C5AssCTsHF01imRfE6Y181FKM937foLx X-Google-Smtp-Source: AGHT+IFmE5GI0godAPqNQyN2YPspMWWMHHYp0iA22IQDb1vdWvkwnmx2bQyjOI0TqH6so35dd1UY/Pedg5CWPbdkZdiUH4mIgEBa Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1543:b0:35f:ff56:c0fe with SMTP id j3-20020a056e02154300b0035fff56c0femr2296142ilu.1.1704242405290; Tue, 02 Jan 2024 16:40:05 -0800 (PST) Date: Tue, 02 Jan 2024 16:40:05 -0800 In-Reply-To: <000000000000d95cf9060c5038e3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002dbc50060dffdba0@google.com> Subject: Re: [syzbot] [hfs?] possible deadlock in hfs_extend_file (2) From: syzbot To: akpm@linux-foundation.org, eadavis@qq.com, ernesto.mnd.fernandez@gmail.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot has bisected this issue to: commit 54640c7502e5ed41fbf4eedd499e85f9acc9698f Author: Ernesto A. Fern=C3=A1ndez Date: Tue Oct 30 22:06:17 2018 +0000 hfs: prevent btree data loss on ENOSPC bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D1121e49ae800= 00 start commit: 610a9b8f49fb Linux 6.7-rc8 git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=3D1321e49ae800= 00 console output: https://syzkaller.appspot.com/x/log.txt?x=3D1521e49ae80000 kernel config: https://syzkaller.appspot.com/x/.config?x=3D247b5a935d307ee= 5 dashboard link: https://syzkaller.appspot.com/bug?extid=3D41a88b825a315aac2= 254 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D1552fe19e8000= 0 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D1419bcade80000 Reported-by: syzbot+41a88b825a315aac2254@syzkaller.appspotmail.com Fixes: 54640c7502e5 ("hfs: prevent btree data loss on ENOSPC") For information about bisection process see: https://goo.gl/tpsmEJ#bisectio= n