From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from fanzine2.igalia.com (fanzine.igalia.com [178.60.130.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D3994221DB7; Tue, 15 Apr 2025 17:29:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.60.130.6 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744738189; cv=none; b=WuqSCsjUuJwGCymnF2FEuwTxSfP4ZN6xA8MKONn7hlPOxDoTXDUrwAlJ7JRqO+VL4YO64Xi4rGrffUFhHtHFG8JowpAfexnraN7YuWwGJT6VJGGGosDiQiFbI3/aHAlM9rWUL76FhMMKgsqLe0d1x1xd4nNatpOzjuYGtwwlFjU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744738189; c=relaxed/simple; bh=S9XIVsAtv9ZvySpTXNmklIj3dCEZDBJtKPlbeZscMlc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=cEVzjThar/GpO1rhhvx+0tHYIUTwsbAnearsPK7NpLMtqiZyzK0BPG0Zz2OEv/9uTNttcitPVzn64wrPFRn7Z5EI5DjJkOu3Brw+Y8RH2GwJXIJg8DEPKcQkVNaUDK/vbVPRzh9c+1ycV6N9QfukMRMWNqqghAX/eZiyWh14MAU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com; spf=pass smtp.mailfrom=igalia.com; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b=nAfrYpn+; arc=none smtp.client-ip=178.60.130.6 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=igalia.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=igalia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=igalia.com header.i=@igalia.com header.b="nAfrYpn+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=S9XIVsAtv9ZvySpTXNmklIj3dCEZDBJtKPlbeZscMlc=; b=nAfrYpn+EH35wsb4MLQ6p/PDDF zOFQG1WwkS0rI2Ik5a1xtmtHbS/8FmGMveZezvs5NdHB5IAOkO88E72Oxmz8DEE6GbnYhOyBlVnid UkUJBQP/CFn33zCQY+XfQh2gKCRYGh0biOZS8u+aKphLXctFwioKoZFtD2OQUMGabTKI5MBGcfd8D YNLO2kOwx4rGUw1sI+K/+L/NiHFVCzPretOedaFWvRwjg6OVkGb+SPTM1aiu5/Y1sNQ/ao+UG8hD9 jmxZ7Tf9nYWWLFJ6MZV5l0CoaAWRq3kUZMYtpbaU1X5b8Whp594kAe7yWA7HyvL94CFhwdV2caSaL A1Q4xX1Q==; Received: from 179-125-92-204-dinamico.pombonet.net.br ([179.125.92.204] helo=quatroqueijos) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1u4k6M-00H20J-M8; Tue, 15 Apr 2025 19:29:39 +0200 Date: Tue, 15 Apr 2025 14:29:34 -0300 From: Thadeu Lima de Souza Cascardo To: syzbot Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Subject: Re: [syzbot] [ext4?] KASAN: use-after-free Write in ext4_insert_dentry Message-ID: References: <671c2223.050a0220.2fdf0c.021c.GAE@google.com> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <671c2223.050a0220.2fdf0c.021c.GAE@google.com> #syz fix: ext4: fix off-by-one error in do_split