From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 E0B2D21B9E7 for ; Wed, 9 Jul 2025 19:34:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752089645; cv=none; b=JZOdJ+QzOBk5Zo1xOW5YqpLWiYU47DsNH1NSxzZzHYwARZJLKK03HrCJeQrkNIT29ORGKjNBYxK16BiPiJlz+dMmABXBIKvMiq3c/KnntVKfX7zL9GeIGGLpwr3W1SdxYTPgmUSMzySTulFO3/VO5tGXvsNllo2SjZlykMpzdCY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752089645; c=relaxed/simple; bh=FmSWEMiKS2GWteM3+xkqPju3/+A8QOWe7DgoLvFMw9o=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=BOG9jCZtLTEV1JYVIgoJM/YNsz3rT4WesEAhb5KBoF0JO1Z/5Eb7NZQDwNCzYBF0FSi1OgwSnCvO4UG/OfY6fuSbr/BXj7LUMGEdMaiOSmZe5RzDRkz8YdkAAas6R4SoU6oHoX8QiLlCg8qp//hjvXYGiN+/PwLZL7X4nz18lPs= 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=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-86463467dddso31356039f.3 for ; Wed, 09 Jul 2025 12:34:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752089643; x=1752694443; 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=IiR6g+qyudooivd78b1N45PiW3XgKBWniwsSI4xqkII=; b=wyNJBIUPvESvMB6a0PWxL1yfcjUveIPunvOTfcQWrcvkDJncwOmcffItRVNpvzqWJN qbWiSpDrM1NY5Ahr8p6BRgUBcoAU/RJkVRlPm1j4CwziM2tfrlRNma+35QPHyL+h018m 8Yas0CmXs6RYdBDbNbOF9fH0l84NFD466HQvHFpOlRnWXIuzg/GRio3jUuTvl22ElyWh DaUB5vjrovNgWAfvzJomHkWkFe8ccpTVpf4pzoF4cYui5MSW3MVGW82q5SI24x+Yovr8 hT62yhKuab4OivttglC3nsjhYaz92eYdnweTR7itHHAVFaWUTz94snNB9qeBRLpa+Jtx vIFg== X-Forwarded-Encrypted: i=1; AJvYcCWS0ze6rJ+DpC3cVn6PY2Ymc7aAeBW1JoiboRPSZLwt7ATOU59x4cEKCc+JreF68WiiMM/7JoW3/gFLr/w=@vger.kernel.org X-Gm-Message-State: AOJu0YxKuSea2ag/C6/jfS1xoUfM//7uhuNFBXTK9MxUxLSkLqwW9iEN K02+MFjJA+XZnOoGe20Qh6msmjWIBQ/LkBOX9NPFXUrfcQ8QcC8aV4zD9KzGxRIKsRd+ZLRffPL 0Ju5lpHpz4y3EYLVoUOHp2PnT8B8+hndpvtywUhFn4Q7I01yFdDi2m+lkc6c= X-Google-Smtp-Source: AGHT+IEceed77DdA5JUd9P8OMerQksCR3D/DZggSl6GaOPAghZrlCXhOzd3qth9JjZ96NiSoTIVrQAHWpYA/ci/yPKvo49CWEAS+ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:23c4:b0:3dd:f4d5:1c1a with SMTP id e9e14a558f8ab-3e1670d8889mr33353025ab.17.1752089643105; Wed, 09 Jul 2025 12:34:03 -0700 (PDT) Date: Wed, 09 Jul 2025 12:34:03 -0700 In-Reply-To: <686d2569.050a0220.1ffab7.000e.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <686ec42b.050a0220.385921.001e.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] KASAN: slab-use-after-free Read in bch2_copygc From: syzbot To: anna.luese@v-bien.de, kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 82067c916994dd1bfec65496144dc16e17899e36 Author: Kent Overstreet Date: Fri May 9 03:21:28 2025 +0000 bcachefs: buckets_in_flight on stack bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10d6aa8c580000 start commit: d006330be3f7 Merge tag 'sound-6.16-rc6' of git://git.kerne.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12d6aa8c580000 console output: https://syzkaller.appspot.com/x/log.txt?x=14d6aa8c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=bd2783a0a99d4ed0 dashboard link: https://syzkaller.appspot.com/bug?extid=3168625f36f4a539237e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=175fabd4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c0bf70580000 Reported-by: syzbot+3168625f36f4a539237e@syzkaller.appspotmail.com Fixes: 82067c916994 ("bcachefs: buckets_in_flight on stack") For information about bisection process see: https://goo.gl/tpsmEJ#bisection