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cdio-utils.12032
libcdio-0.94-leak-11.patch
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File libcdio-0.94-leak-11.patch of Package cdio-utils.12032
From 86edad4f031f50d3c9433a0dcd3cc7d346d94f5e Mon Sep 17 00:00:00 2001 From: "R. Bernstein" <rocky@gnu.org> Date: Fri, 1 Dec 2017 03:35:05 -0500 Subject: [PATCH 11/20] Remove test leaks and uninitialized access --- lib/driver/gnu_linux.c | 7 ++++--- lib/driver/mmc/mmc_cmd_helper.h | 18 +++++++++--------- test/driver/mmc_read.c | 11 ++++++----- test/driver/mmc_write.c | 17 ++++++++++------- 4 files changed, 29 insertions(+), 24 deletions(-) diff --git a/lib/driver/gnu_linux.c b/lib/driver/gnu_linux.c index 4081741e..bc4d9f9b 100644 --- a/lib/driver/gnu_linux.c +++ b/lib/driver/gnu_linux.c @@ -1278,11 +1278,13 @@ run_mmc_cmd_linux(void *p_user_data, _img_private_t *p_env = p_user_data; struct cdrom_generic_command cgc; cdio_mmc_request_sense_t sense; - unsigned char *u_sense = (unsigned char *) &sense; p_env->gen.scsi_mmc_sense_valid = 0; - memset (&cgc, 0, sizeof (struct cdrom_generic_command)); + + memset(&cgc, 0, sizeof (struct cdrom_generic_command)); + memset(&sense, 0, sizeof (struct cdio_mmc_request_sense)); memcpy(&cgc.cmd, p_cdb, i_cdb); + cgc.buflen = i_buf; cgc.buffer = p_buf; cgc.sense = (struct request_sense *) &sense; @@ -1295,7 +1297,6 @@ run_mmc_cmd_linux(void *p_user_data, cgc.timeout = i_timeout_ms; #endif - memset(u_sense, 0, sizeof(sense)); { int i_rc = ioctl (p_env->gen.fd, CDROM_SEND_PACKET, &cgc); diff --git a/lib/driver/mmc/mmc_cmd_helper.h b/lib/driver/mmc/mmc_cmd_helper.h index f77f8c34..04ba04bc 100644 --- a/lib/driver/mmc/mmc_cmd_helper.h +++ b/lib/driver/mmc/mmc_cmd_helper.h @@ -1,16 +1,16 @@ /* - Copyright (C) 2010, 2012 Rocky Bernstein <rocky@gnu.org> + Copyright (C) 2010, 2012, 2017 Rocky Bernstein <rocky@gnu.org> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. - + This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ @@ -22,9 +22,9 @@ assume variables 'p_cdio', 'p_buf', and 'i_size' are previously defined. It does the following: - 1. Defines a cdb variable, - 2 Checks to see if we have a cdio object and can run an MMC command - 3. zeros the buffer (p_buf) using i_size. + 1. Defines a cdb variable, + 2. zeros cdb variable + 3 Checks to see if we have a cdio object and can run an MMC command 4. Sets up the command field of cdb to passed in value mmc_cmd. */ #define MMC_CMD_SETUP(mmc_cmd) \ @@ -33,7 +33,7 @@ if ( ! p_cdio ) return DRIVER_OP_UNINIT; \ if ( ! p_cdio->op.run_mmc_cmd ) return DRIVER_OP_UNSUPPORTED; \ \ - CDIO_MMC_SET_COMMAND(cdb.field, mmc_cmd) + CDIO_MMC_SET_COMMAND(cdb.field, mmc_cmd) /* Boilerplate initialization code to setup running MMC read command needs to set the cdb 16-bit length field. See above @@ -45,13 +45,13 @@ /* Setup to read header, to get length of data */ \ CDIO_MMC_SET_READ_LENGTH16(cdb.field, i_size) -/* Boilerplate code to run a MMC command. +/* Boilerplate code to run a MMC command. We assume variables 'p_cdio', 'mmc_timeout_ms', 'cdb', 'i_size' and 'p_buf' are defined previously. 'direction' is the SCSI direction (read, write, none) of the - command. + command. */ #define MMC_RUN_CMD(direction, i_timeout) \ p_cdio->op.run_mmc_cmd(p_cdio->env, \ diff --git a/test/driver/mmc_read.c b/test/driver/mmc_read.c index 199b2e2b..bc6694c2 100644 --- a/test/driver/mmc_read.c +++ b/test/driver/mmc_read.c @@ -1,6 +1,6 @@ /* -*- C -*- Copyright (C) 2009 Thomas Schmitt <scdbackup@gmx.net> - Copyright (C) 2010-2013 Rocky Bernstein <rocky@gnu.org> + Copyright (C) 2010-2013, 2017 Rocky Bernstein <rocky@gnu.org> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -134,10 +134,11 @@ handle_outcome(CdIo_t *p_cdio, driver_return_code_t i_status, cdio_mmc_request_sense_t *p_temp_sense_reply = NULL; *pi_sense_avail = mmc_last_cmd_sense(p_cdio, &p_temp_sense_reply); print_status_sense(i_status, *pi_sense_avail, p_temp_sense_reply, i_flag & 1); - if (18 <= *pi_sense_avail) - memcpy(p_sense_reply, p_temp_sense_reply, sizeof(cdio_mmc_request_sense_t)); - else - memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); + if (18 <= *pi_sense_avail) { + memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); + memcpy(p_sense_reply, p_temp_sense_reply, *pi_sense_avail); + } else + memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); cdio_free(p_temp_sense_reply); return i_status; } diff --git a/test/driver/mmc_write.c b/test/driver/mmc_write.c index 82d55a47..3cf88e6b 100644 --- a/test/driver/mmc_write.c +++ b/test/driver/mmc_write.c @@ -1,6 +1,6 @@ /* -*- C -*- Copyright (C) 2009 Thomas Schmitt <scdbackup@gmx.net> - Copyright (C) 2010, 2012-2013 Rocky Bernstein <rocky@gnu.org> + Copyright (C) 2010, 2012-2013, 2017 Rocky Bernstein <rocky@gnu.org> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -116,10 +116,11 @@ handle_outcome(CdIo_t *p_cdio, driver_return_code_t i_status, cdio_mmc_request_sense_t *p_temp_sense_reply = NULL; *pi_sense_avail = mmc_last_cmd_sense(p_cdio, &p_temp_sense_reply); print_status_sense(i_status, *pi_sense_avail, p_temp_sense_reply, i_flag & 1); - if (18 <= *pi_sense_avail) - memcpy(p_sense_reply, p_temp_sense_reply, sizeof(cdio_mmc_request_sense_t)); - else - memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); + if (18 <= *pi_sense_avail) { + memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); + memcpy(p_sense_reply, p_temp_sense_reply, *pi_sense_avail); + } else + memset(p_sense_reply, 0, sizeof(cdio_mmc_request_sense_t)); cdio_free(p_temp_sense_reply); return i_status; } @@ -442,13 +443,15 @@ static int test_rwr_mode_page(CdIo_t *p_cdio, unsigned int i_flag) { int i_ret; - unsigned int i_sense_avail; - int page_code = 5, subpage_code = 0, i_alloc_len, i_size; + unsigned int i_sense_avail = 0; + int page_code = 5, subpage_code = 0, i_alloc_len, i_size = 0; int write_type, final_return = 1, new_write_type, old_i_size; cdio_mmc_request_sense_t sense_reply; unsigned char buf[265], old_buf[265]; /* page size is max. 255 + 10 */ static char w_types[4][8] = {"Packet", "TAO", "SAO", "Raw"}; + memset(buf, 0, sizeof(buf)); + i_alloc_len = 10; i_ret = mode_sense(p_cdio, &i_sense_avail, &sense_reply, page_code, subpage_code, i_alloc_len, -- 2.17.0
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