From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out203-205-221-155.mail.qq.com (out203-205-221-155.mail.qq.com [203.205.221.155]) (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 9A12F1CBE83 for ; Thu, 10 Oct 2024 14:38:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.205.221.155 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728571082; cv=none; b=Tfx/HYmgIPKq3bOVtCwYZPnYe6Erjfr6z+QmUS/N4t8DPXWylK8w6i1IoNETEeoGYSV0pnqDpQm3MPIn9zg9369o/dqNZvjNLlDQy4hyb80G0VPjNzLT3nBSqFPHB6byji/z0slURJj/aysSLsReFmnMaFCPmMxfVDHIMO4c0kg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728571082; c=relaxed/simple; bh=mH4Be2yJhgiF2i9P9P38P9r2ucKw71C/Rsz/G5M/iFY=; h=Message-ID:From:To:Cc:Subject:Date:In-Reply-To:References: MIME-Version; b=oBqOCXKpNtUrjB0Q1VYErpFmSxGwRvZOL0VzRcbid1dhVj4R0zxFCqzlxjlgRTV41PoWwtZ5VdTozWKGGO2eIjS+104mWTsqBzgRrS5KDTMs4tXmkb9O7jVwhtfnZ+u4cVxo+Hmdcky3CRzTcQ4dY4DUpSu00NLW0yA9iKF5auY= 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=nDnmi5fU; arc=none smtp.client-ip=203.205.221.155 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="nDnmi5fU" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qq.com; s=s201512; t=1728570771; bh=qYbaBkOzlRAS7/XGImNK8GZXuIWeWJrro2hRvz7Tce4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=nDnmi5fUIboAXXLoY+prjxacw302FYuxHrdXR/ckqLaCrTt8TQLwRY7so1QusKlFv sYpVeXGi7BM6/japDl2PI8/DUYsRRshmkLZJqGN72nMUl/Q/L/WiD0AFQ5zssVeInw FB7nMulDlvdJnOAvkjIiNjMm3J89s7rwOtCXvFws= Received: from pek-lxu-l1.wrs.com ([111.198.224.50]) by newxmesmtplogicsvrszgpua4-0.qq.com (NewEsmtp) with SMTP id 8319C4DB; Thu, 10 Oct 2024 22:32:49 +0800 X-QQ-mid: xmsmtpt1728570769tsem68f2b Message-ID: X-QQ-XMAILINFO: MyirvGjpKb1jEDksENgzSbQI9313YbtOjwXvQuA1NtHtSiDrQnopFIPPBdWhG3 pivKKTovXe3/M8r6+vDfVXEtx6Gla2jDuPH5Gtb5Iak3iV5cP8885/F23E7Rh17b8Y/zpoGeIVqE cd5EBVz4DkFLQuZ4cBSDWzd/sV4EEWPQPta1Mxq8LcEKLbimN+4KozQteSkbw49X7LBTKo5KVdrr JhbqQzwk0JhmBxNz+LTtMvQfSJnpxaiObogwC7gcVcFZg9OHLv+B12y8r7hqUeUxZvZN3MDACTLq tcm/Lg62fYpPEoMBol8ZFjut+Dgv4P7fKiHK8CJb21mTqgAh3A1z1Ge0a7w+ebndEFD1r2q42IEd LHdiBJMUClQvJ5KFsYGf1lcfIjI4zw0SxqyVcHARkzxvzHL7h6lloNMOgKYCj7JAhZQjyJFe0U+B 4S+IlCdATWtBjmLpFmUQmrG5JWXYI/cIaVpgoC23AHdhZpBiS3ywzXn7OjDQ+xejx8hrIoQoOeX7 3lphbU6U59iDWMZQzvAkdWHWcLr14K3voJ8AbBDOHcgA2PAtfdq4qrc8vgNmZ23vLAmtj6OYWpCl t1gqxoS4c9Ihy87UPloNB8QMrBPrC46AtUq5RZxCBOskdt0sLe01Q12oBgr/1xGK125eG/G2wQX7 JPA8iDYg8KI6bwFGEBANSy1gDn69V73/ZwC2boBOaw4UOiQEdYpc2cUzInFWpJ6deW/4MXkpuakS yeCafiNHICBZ0I4+3WJGst7w2AL9qi1OZCAxkTU13oWpUQU91/L0FLqUUD0o6UVCgaR+cdHPwMGb SKq0p1Of4qi0yEAsOp1fFVn/NskbrND0MCDPj4emeF57CdeP5+ESJe3clSVHPi0+xqB5u9A4by+9 CGemwQegiIrvdsNdRlL5/AAX3L6fyE20Nl79DnTKqyWAt+c+AgP7j3+zCFiXlbLVGyR7W1KiRzgm LJKzveLiw= X-QQ-XMRINFO: Nq+8W0+stu50PRdwbJxPCL0= From: Edward Adam Davis To: syzbot+81092778aac03460d6b7@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [ocfs2?] kernel BUG in ocfs2_truncate_inline Date: Thu, 10 Oct 2024 22:32:50 +0800 X-OQ-MSGID: <20241010143249.1814347-2-eadavis@qq.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <67062030.050a0220.3f80e.0024.GAE@google.com> References: <67062030.050a0220.3f80e.0024.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 offset or offset + len greater than UINT_MAX, if true, it will overflow in ocfs2_truncate_inline #syz test diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index ad131a2fc58e..05d6a8acfcda 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1784,6 +1784,11 @@ int ocfs2_remove_inode_range(struct inode *inode, return 0; if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { + if (byte_start > UINT_MAX || byte_start + byte_len > UINT_MAX) { + ret = -EFBIG; + mlog_errno(ret); + goto out; + } ret = ocfs2_truncate_inline(inode, di_bh, byte_start, byte_start + byte_len, 0); if (ret) {