From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from xmbghk7.mail.qq.com (xmbghk7.mail.qq.com [43.163.128.53]) (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 E162054652 for ; Sun, 9 Aug 2026 02:56:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=43.163.128.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786244213; cv=none; b=Sv2h3Yh8mR8l1CbeLMJb43RFUIGFM3LybQihCc6kW3fSTjP2FmnUt6tLNkxNzPvvq6cr98R41aQVDPJtbZwB1qKe/bbKi1Im4eOoK5RBlsG2gyo7ixDvFi5qD2etIo0ufCVoe3Wh3s6uH3urhbKvLx6PXYJWus0mC6VzKrou0Yk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786244213; c=relaxed/simple; bh=YWd8+ObsFPT64//SA0OkoMINLods2pxzZb5ZR63xt8A=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=nFiWLBjnjmvZRtR4+a+YWuU26wukMW+2hdajipPMBmTlofiXmRhE44xPlpdP5lr/rTvbVNavWRjujb+4UpM7ykUyNhfCdRmL8gZzlp81OQlqiSttiwRCZun3xVTDo5ooQktGWDcx1SYrAGUQ2u4RgMF6HS07lU6v9paHUVTqGaM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com; spf=pass smtp.mailfrom=qq.com; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b=ycpf8d/2; arc=none smtp.client-ip=43.163.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=qq.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=qq.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=qq.com header.i=@qq.com header.b="ycpf8d/2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1786244207; bh=4ZE0xLSyyAfs5e70d9NIBfIMc5vCKkBw0VKEodHMFdU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=ycpf8d/2Ln8+oTFjs5csBw73Fs8GtQAM4mt/S+7aJR+/CCAGoSMiG/WWEwYAtdtzU SinnAsELOYfnMErk3/7vRic5B4blz/GrVWHx5gaEnrcqHWR+cUvHPqCY++laUCnv+8 YuHYhdYsd7qp6XCfVMS2Z9QR9z97wZEo9H+11xq8= Received: from lxu-ped-host.. ([111.198.231.89]) by newxmesmtplogicsvrszc56-0.qq.com (NewEsmtp) with SMTP id E2C0D498; Sun, 09 Aug 2026 10:56:44 +0800 X-QQ-mid: xmsmtpt1786244204tfv3cl2gx Message-ID: X-QQ-XMAILINFO: Mkw1Oys1xyjC9caMaMrxddu7YG8NaANU9/6g4VgJPKLtc8KmDaFMggj6GgrCuT mah4zU35lcr83pAwW1iT/hzjtXzkY1kqc5PdZUKGCNEh0f8DJ2rDV5mcszYbNLmopTJ7UOjY50ZS mvUru2XMr93hrCw1E0scsV0EJhKRb4f/zznffs2qhVwGp7s08ReNa093FfXwU95A1FvwZmG1TGUs Ywjhs1jbzD+bDc7OaNtBHnYSEvuSbBCmUvUMq9ss4/+srVh60WEPHBWbCD3nPBbsxPzw4aKNJYfH kKTNoQmQBk/3Hr5sVLctOnx87gd9Sa6fTSmn54TbZJ0Xjk0eEC1JeLYUF+sz3E8FI2aGblR5abvM CuXCJWocfrY6BUJAm1TKWTZVK/jVySsAhRMwciLlZjx236h9BmEEM6STbyfAM162ShEeVrTVB3yS +eqkp53zqlfQT3FpO0yb40ulnsXpF4fZMeGe5q8J1lJr/Sv0OlUK2m1EeI0a64qEgdHt67A2Ae9x le+mosSLUKY0bNOIh2Qx9yx3prr4ohJzCR/JS61vW3gB6ewrhrDnsRdHrL7Pri2HuusXCgfM1x6H RhQ1ISnkcovZyJMcXmr8lvWc6enIlvLWAYMzOgSXsp4NP/C/EQwneEuNNUYd/DWnbEBTZlFsTOoc T9mHVHCEspFSDH5j/9u60vO1zd9/Za2aECSsOrcvfedNrWaxk8kpBlSbLroO/WASaf04ATnd8x9W Z11WhIv59WYHGf1M/ZnEBrxFJnY0NrOz7GI84BlZa5QECAUxP4Qv/gagmu05G2kAC8uCJyHfxB7X WX0lFouBdDh+xNkmvRUWjnTmXSOsQaeZBzXjCDDn94VoHzOtF3OLKlakW+hiJA0op242ffPfUXD3 fnOt2kQR+Zj4qJq3U7+S+QChSpRsE7INOiD6b1OC2R7dTYqP4zNhJbv53NcfhAeB2S3xBIKahTey ndDZk/M1NP8XLpzi0ET2KDiBS+UjrQ2e3Fuzkxvpag4oDBOlNIVuANpRAM694fs+SimlaRTx0i2F TeUrzeUg== X-QQ-XMRINFO: OWPUhxQsoeAVwkVaQIEGSKwwgKCxK/fD5g== From: Edward Adam Davis To: syzbot+4c22f022eb39c86b9d19@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] KASAN: slab-use-after-free Read in ntfs_show_options Date: Sun, 9 Aug 2026 10:56:44 +0800 X-OQ-MSGID: <20260809025643.16848-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <6a778cc0.01d0871a.3a0d52.006c.GAE@google.com> References: <6a778cc0.01d0871a.3a0d52.006c.GAE@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test: upstream master diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c index 3305fe406cb2..58540491e68b 100644 --- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -461,7 +461,7 @@ static int ntfs_fs_reconfigure(struct fs_context *fc) } sync_filesystem(sb); - swap(sbi->options, fc->fs_private); + memcpy(sbi->options, fc->fs_private, sizeof(*sbi->options)); return 0; }