From owner-svn-src-stable-12@freebsd.org Thu Sep 3 13:57:06 2020 Return-Path: Delivered-To: svn-src-stable-12@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id B107D3E6DE3; Thu, 3 Sep 2020 13:57:06 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Bj2Rk4H8Yz4TQC; Thu, 3 Sep 2020 13:57:06 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 766971C57D; Thu, 3 Sep 2020 13:57:06 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 083Dv6IP035986; Thu, 3 Sep 2020 13:57:06 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 083Dv633035985; Thu, 3 Sep 2020 13:57:06 GMT (envelope-from markj@FreeBSD.org) Message-Id: <202009031357.083Dv633035985@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Thu, 3 Sep 2020 13:57:06 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r365300 - stable/12/sys/kern X-SVN-Group: stable-12 X-SVN-Commit-Author: markj X-SVN-Commit-Paths: stable/12/sys/kern X-SVN-Commit-Revision: 365300 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Sep 2020 13:57:06 -0000 Author: markj Date: Thu Sep 3 13:57:05 2020 New Revision: 365300 URL: https://svnweb.freebsd.org/changeset/base/365300 Log: MFC r364876: Fix writing of the final block of encrypted, compressed kernel dumps. Modified: stable/12/sys/kern/kern_shutdown.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/kern/kern_shutdown.c ============================================================================== --- stable/12/sys/kern/kern_shutdown.c Thu Sep 3 13:56:47 2020 (r365299) +++ stable/12/sys/kern/kern_shutdown.c Thu Sep 3 13:57:05 2020 (r365300) @@ -1302,6 +1302,7 @@ kerneldumpcomp_write_cb(void *base, size_t length, off } resid = length - rlength; memmove(di->blockbuf, (uint8_t *)base + rlength, resid); + bzero((uint8_t *)di->blockbuf + resid, di->blocksize - resid); di->kdcomp->kdc_resid = resid; return (EAGAIN); } @@ -1518,9 +1519,10 @@ dump_finish(struct dumperinfo *di, struct kerneldumphe error = compressor_flush(di->kdcomp->kdc_stream); if (error == EAGAIN) { /* We have residual data in di->blockbuf. */ - error = dump_write(di, di->blockbuf, 0, di->dumpoff, - di->blocksize); - di->dumpoff += di->kdcomp->kdc_resid; + error = _dump_append(di, di->blockbuf, 0, di->blocksize); + if (error == 0) + /* Compensate for _dump_append()'s adjustment. */ + di->dumpoff -= di->blocksize - di->kdcomp->kdc_resid; di->kdcomp->kdc_resid = 0; } if (error != 0)