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 453D44414 for ; Sat, 22 Feb 2025 01:01:06 +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=1740186067; cv=none; b=oFEqpyY1WVPIznZiD/lHabV2krmwHbSAk7PAMP7AOrRgQdlcXFCBlyCLDGdLslwcHYNwyVnXQQbuJHSuD0SsfMGdkzx2llA9k3m5VDvC6F/HRr55bxt6Gc3eZFB468CBr3ZWttZ12wHGkvODXm3+ohAHOpDy8UMa1D4aN8/8B/U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740186067; c=relaxed/simple; bh=fBCMcXRPLtFr7kTbuvv2zc6MOF5uzJoIw3tIBZVBRJA=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=nj4ZU6D9NYL55OjDVRdSeZc5rG6I023+dzyfWkFuEydkAWcTyFelMu2xHSavgCBLXd7ix5OdFGPm+Fyp+mO7+w8anSJp/Vf3hP1T/t/69Ab9H3Cwk1wnNLQ1wuCrfiRlErowfVcf24BQlUP5LMkTz3AZvgL3nMVd6YiTIcuRcp8= 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-3d2b6d933c1so44343445ab.3 for ; Fri, 21 Feb 2025 17:01:06 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1740186065; x=1740790865; 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=M/g4S0rtmAw1ot+JHLgqMoNm8oJhYI82knnP6GthPD8=; b=e+l0LDdTjaVL8gWUgESQQiwJPfoRqYHK568hMyROHBzeXMgJMP6rt/2NKUwRnSf/mW zDPSdlt0BGbfPpmtutWy9H2ePND/6pv8D3iSzoRZtsQQW+9hr30XXPZQwLEusgClTfKh lJpTnJZkUTf1LjaO8T3JNm60CyaVQgw/thYma5tEAbkyIyP9K+h+kVpiy5X/4bWck4Gd R7qag9qKFKc8cD08teo3PAAuTh2d/67OlUG808bDhtNeoZo4NSQbhs0d8fmkvfB2p4iT DVvCES71ou+2hun9kvdAuy5ulYhFSDCvAtZPCYGajzQjRGez/EtJPXw6mfCFEL7/gUd5 cyCw== X-Forwarded-Encrypted: i=1; AJvYcCVasBK8nbH85lawM610DL52J8ssQjwD/G8xqvKIY7kg2rLCNuVCWb48YacRo1rRjhDduMkBoXcpEcUpy7Y=@vger.kernel.org X-Gm-Message-State: AOJu0YxM+b5Qj+7ziTcFNPbYvg8y5nUwyWXSFdjtHHfvR7cvJDQv4YDC Qn3HyotIhCOJa+NBNoWy6ROYgFTmeS9u1htiVLw9cFasg4Njy04vNhcgtvZji8OhJY2UOtDAItl vkZe9jz9Qp3cFPwiQ69i0HvL//OG/6Oi3h/YvO9YfgvoF6v66jjX+34Q= X-Google-Smtp-Source: AGHT+IHgoyRHGT8n2U0f5nj6pPzqwrGKygIICQiEr2OtsSPaOB+ITbxhNydQsZDxgGQfDtmdo9Zxgj/pJ5wVYO0LRhPBmI7sHNy8 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1fe6:b0:3d1:9cee:3d2f with SMTP id e9e14a558f8ab-3d2cb51e40amr59265405ab.18.1740186063888; Fri, 21 Feb 2025 17:01:03 -0800 (PST) Date: Fri, 21 Feb 2025 17:01:03 -0800 In-Reply-To: <67b8a9a7.050a0220.14d86d.0578.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67b921cf.050a0220.14d86d.059a.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in check_dirent From: syzbot To: 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 cf3da2d627037a0848e25dbaeaedfadfe534c7c4 Author: Kent Overstreet Date: Mon Dec 16 18:58:02 2024 +0000 bcachefs: Handle -BCH_ERR_need_mark_replicas in gc bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10e887a4580000 start commit: 27eddbf34490 Merge tag 'net-6.14-rc4' of git://git.kernel... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12e887a4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=14e887a4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b03346163189483c dashboard link: https://syzkaller.appspot.com/bug?extid=87078ad27cd8af3263cc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ce6ba4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11300db0580000 Reported-by: syzbot+87078ad27cd8af3263cc@syzkaller.appspotmail.com Fixes: cf3da2d62703 ("bcachefs: Handle -BCH_ERR_need_mark_replicas in gc") For information about bisection process see: https://goo.gl/tpsmEJ#bisection