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import mcstrans-2.9-1.2.el8

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CentOS Sources 2019-11-05 15:21:01 -05:00 committed by Andrew Lukoshko
parent e76e77f16e
commit 901595e7a3
6 changed files with 202 additions and 252 deletions
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2
.gitignore vendored
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@ -1 +1 @@
SOURCES/mcstrans-2.8.tar.gz
SOURCES/mcstrans-2.9.tar.gz

2
.mcstrans.metadata
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@ -1 +1 @@
a52d02609e81fbfcc6de54457cc5f9c6da727c48 SOURCES/mcstrans-2.8.tar.gz
64bea2c1cd56e0550049a548dde0ac2e53f71714 SOURCES/mcstrans-2.9.tar.gz

126
SOURCES/0001-mcstrans-Fir-RESOURCE_LEAK-and-USE_AFTER_FREE-coveri.patch Normal file
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@ -0,0 +1,126 @@
From eeac35fa98b8b2d323741703a2e59593d1ad200a Mon Sep 17 00:00:00 2001
From: Petr Lautrbach <plautrba@redhat.com>
Date: Wed, 28 Nov 2018 18:28:05 +0100
Subject: [PATCH] mcstrans: Fir RESOURCE_LEAK and USE_AFTER_FREE coverity scan
defects
---
mcstrans/src/mcstrans.c | 17 ++++++++++++++++-
mcstrans/src/mcstransd.c | 4 +++-
2 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/mcstrans/src/mcstrans.c b/mcstrans/src/mcstrans.c
index 96bdbdff..29cadb78 100644
--- a/mcstrans/src/mcstrans.c
+++ b/mcstrans/src/mcstrans.c
@@ -633,16 +633,23 @@ add_cache(domain_t *domain, char *raw, char *trans) {
map->raw = strdup(raw);
if (!map->raw) {
+ free(map);
goto err;
}
map->trans = strdup(trans);
if (!map->trans) {
+ free(map->raw);
+ free(map);
goto err;
}
log_debug(" add_cache (%s,%s)\n", raw, trans);
- if (add_to_hashtable(domain->raw_to_trans, map->raw, map) < 0)
+ if (add_to_hashtable(domain->raw_to_trans, map->raw, map) < 0) {
+ free(map->trans);
+ free(map->raw);
+ free(map);
goto err;
+ }
if (add_to_hashtable(domain->trans_to_raw, map->trans, map) < 0)
goto err;
@@ -1519,6 +1526,7 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
trans = compute_trans_from_raw(range, domain);
if (trans)
if (add_cache(domain, range, trans) < 0) {
+ free(trans);
free(range);
return -1;
}
@@ -1530,6 +1538,7 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
ltrans = compute_trans_from_raw(lrange, domain);
if (ltrans) {
if (add_cache(domain, lrange, ltrans) < 0) {
+ free(ltrans);
free(range);
return -1;
}
@@ -1548,6 +1557,7 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
utrans = compute_trans_from_raw(urange, domain);
if (utrans) {
if (add_cache(domain, urange, utrans) < 0) {
+ free(utrans);
free(ltrans);
free(range);
return -1;
@@ -1647,7 +1657,9 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
canonical = compute_trans_from_raw(raw, domain);
if (canonical && strcmp(canonical, range))
if (add_cache(domain, raw, canonical) < 0) {
+ free(canonical);
free(range);
+ free(raw);
return -1;
}
}
@@ -1655,6 +1667,7 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
free(canonical);
if (add_cache(domain, raw, range) < 0) {
free(range);
+ free(raw);
return -1;
}
} else {
@@ -1672,6 +1685,7 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
canonical = compute_trans_from_raw(lraw, domain);
if (canonical)
if (add_cache(domain, lraw, canonical) < 0) {
+ free(canonical);
free(lraw);
free(range);
return -1;
@@ -1703,6 +1717,7 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
canonical = compute_trans_from_raw(uraw, domain);
if (canonical)
if (add_cache(domain, uraw, canonical) < 0) {
+ free(canonical);
free(uraw);
free(lraw);
free(range);
diff --git a/mcstrans/src/mcstransd.c b/mcstrans/src/mcstransd.c
index 85899493..a1ec81ac 100644
--- a/mcstrans/src/mcstransd.c
+++ b/mcstrans/src/mcstransd.c
@@ -335,6 +335,7 @@ process_events(struct pollfd **ufds, int *nfds)
/* Setup pollfd for deletion later. */
(*ufds)[ii].fd = -1;
close(connfd);
+ connfd = -1;
/* So we don't get bothered later */
revents = revents & ~(POLLHUP);
}
@@ -348,10 +349,11 @@ process_events(struct pollfd **ufds, int *nfds)
/* Set the pollfd up for deletion later. */
(*ufds)[ii].fd = -1;
close(connfd);
+ connfd = -1;
revents = revents & ~(POLLHUP);
}
- if (revents) {
+ if (revents && connfd != -1) {
syslog(LOG_ERR, "Unknown/error events (%x) encountered"
" for fd (%d)\n", revents, connfd);
--
2.21.0

59
SOURCES/0002-mcstrans-Do-not-accept-incomplete-contexts.patch Normal file
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@ -0,0 +1,59 @@
From 659cb59cd6cfe36c954c77f945c06a0cd8218287 Mon Sep 17 00:00:00 2001
From: Petr Lautrbach <plautrba@redhat.com>
Date: Mon, 15 Apr 2019 15:22:51 +0200
Subject: [PATCH 2/2] mcstrans: Do not accept incomplete contexts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Fixes:
$ python3
> import selinux
> selinux.selinux_raw_context_to_color("xyz_u:xyz_r:xyz_t:")
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
OSError: [Errno 0] Error
:: [ 10:25:45 ] :: [ BEGIN ] :: Running 'service mcstransd status'
Redirecting to /bin/systemctl status mcstransd.service
● mcstrans.service - Translates SELinux MCS/MLS labels to human readable form
Loaded: loaded (/usr/lib/systemd/system/mcstrans.service; disabled; vendor preset: disabled)
Active: failed (Result: core-dump) since Fri 2019-04-12 10:25:44 EDT; 1s ago
Process: 16681 ExecStart=/sbin/mcstransd -f (code=dumped, signal=SEGV)
Main PID: 16681 (code=dumped, signal=SEGV)
systemd[1]: mcstrans.service: Main process exited, code=dumped, status=11/SEGV
systemd[1]: mcstrans.service: Failed with result 'core-dump'.
Signed-off-by: Petr Lautrbach <plautrba@redhat.com>
---
mcstrans/src/mcscolor.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/mcstrans/src/mcscolor.c b/mcstrans/src/mcscolor.c
index 6ea1aa97..79fc1c8b 100644
--- a/mcstrans/src/mcscolor.c
+++ b/mcstrans/src/mcscolor.c
@@ -272,10 +272,14 @@ static const unsigned precedence[N_COLOR][N_COLOR - 1] = {
static const secolor_t default_color = { 0x000000, 0xffffff };
static int parse_components(context_t con, char **components) {
- components[COLOR_USER] = (char *)context_user_get(con);
- components[COLOR_ROLE] = (char *)context_role_get(con);
- components[COLOR_TYPE] = (char *)context_type_get(con);
- components[COLOR_RANGE] = (char *)context_range_get(con);
+ if ((components[COLOR_USER] = (char *)context_user_get(con)) == NULL)
+ return -1;
+ if ((components[COLOR_ROLE] = (char *)context_role_get(con)) == NULL)
+ return -1;
+ if ((components[COLOR_TYPE] = (char *)context_type_get(con)) == NULL)
+ return -1;
+ if ((components[COLOR_RANGE] = (char *)context_range_get(con)) == NULL)
+ return -1;
return 0;
}
--
2.21.0

238
SOURCES/mcstrans-fedora.patch
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@ -1,238 +0,0 @@
diff --git mcstrans-2.8/src/mcstrans.c mcstrans-2.8/src/mcstrans.c
index 00fb808..0d9d0f3 100644
--- mcstrans-2.8/src/mcstrans.c
+++ mcstrans-2.8/src/mcstrans.c
@@ -633,16 +633,23 @@ add_cache(domain_t *domain, char *raw, char *trans) {
map->raw = strdup(raw);
if (!map->raw) {
+ free(map);
goto err;
}
map->trans = strdup(trans);
if (!map->trans) {
+ free(map->raw);
+ free(map);
goto err;
}
log_debug(" add_cache (%s,%s)\n", raw, trans);
- if (add_to_hashtable(domain->raw_to_trans, map->raw, map) < 0)
+ if (add_to_hashtable(domain->raw_to_trans, map->raw, map) < 0) {
+ free(map->trans);
+ free(map->raw);
+ free(map);
goto err;
+ }
if (add_to_hashtable(domain->trans_to_raw, map->trans, map) < 0)
goto err;
@@ -708,6 +715,7 @@ append(affix_t **affixes, const char *val) {
err:
log_error("allocation error %s", strerror(errno));
+ free(affix);
return -1;
}
@@ -1517,8 +1525,11 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
} else {
trans = compute_trans_from_raw(range, domain);
if (trans)
- if (add_cache(domain, range, trans) < 0)
+ if (add_cache(domain, range, trans) < 0) {
+ free(trans);
+ free(range);
return -1;
+ }
}
if (lrange && urange) {
@@ -1526,12 +1537,16 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
if (! ltrans) {
ltrans = compute_trans_from_raw(lrange, domain);
if (ltrans) {
- if (add_cache(domain, lrange, ltrans) < 0)
+ if (add_cache(domain, lrange, ltrans) < 0) {
+ free(ltrans);
+ free(range);
return -1;
+ }
} else {
ltrans = strdup(lrange);
if (! ltrans) {
log_error("strdup failed %s", strerror(errno));
+ free(range);
return -1;
}
}
@@ -1541,25 +1556,37 @@ trans_context(const security_context_t incon, security_context_t *rcon) {
if (! utrans) {
utrans = compute_trans_from_raw(urange, domain);
if (utrans) {
- if (add_cache(domain, urange, utrans) < 0)
+ if (add_cache(domain, urange, utrans) < 0) {
+ free(utrans);
+ free(ltrans);
+ free(range);
return -1;
+ }
} else {
utrans = strdup(urange);
if (! utrans) {
log_error("strdup failed %s", strerror(errno));
- return -1;
- }
- }
+ free(ltrans);
+ free(range);
+ return -1;
+ }
+ }
}
if (strcmp(ltrans, utrans) == 0) {
if (asprintf(&trans, "%s", ltrans) < 0) {
log_error("asprintf failed %s", strerror(errno));
+ free(utrans);
+ free(ltrans);
+ free(range);
return -1;
}
} else {
if (asprintf(&trans, "%s-%s", ltrans, utrans) < 0) {
log_error("asprintf failed %s", strerror(errno));
+ free(utrans);
+ free(ltrans);
+ free(range);
return -1;
}
}
@@ -1629,13 +1656,22 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
if (!canonical) {
canonical = compute_trans_from_raw(raw, domain);
if (canonical && strcmp(canonical, range))
- if (add_cache(domain, raw, canonical) < 0)
+ if (add_cache(domain, raw, canonical) < 0) {
+ free(canonical);
+ free(range);
+ free(raw);
return -1;
+ }
}
- if (canonical)
+ if (canonical) {
free(canonical);
- if (add_cache(domain, raw, range) < 0)
+ free(raw);
+ }
+ if (add_cache(domain, raw, range) < 0) {
+ free(range);
+ free(raw);
return -1;
+ }
} else {
log_debug("untrans_context unable to compute raw context %s\n", range);
}
@@ -1650,17 +1686,25 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
if (!canonical) {
canonical = compute_trans_from_raw(lraw, domain);
if (canonical)
- if (add_cache(domain, lraw, canonical) < 0)
+ if (add_cache(domain, lraw, canonical) < 0) {
+ free(canonical);
+ free(lraw);
+ free(range);
return -1;
+ }
}
if (canonical)
free(canonical);
- if (add_cache(domain, lraw, lrange) < 0)
+ if (add_cache(domain, lraw, lrange) < 0) {
+ free(lraw);
+ free(range);
return -1;
+ }
} else {
lraw = strdup(lrange);
if (! lraw) {
log_error("strdup failed %s", strerror(errno));
+ free(range);
return -1;
}
}
@@ -1674,17 +1718,28 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
if (!canonical) {
canonical = compute_trans_from_raw(uraw, domain);
if (canonical)
- if (add_cache(domain, uraw, canonical) < 0)
+ if (add_cache(domain, uraw, canonical) < 0) {
+ free(canonical);
+ free(uraw);
+ free(lraw);
+ free(range);
return -1;
}
+ }
if (canonical)
free(canonical);
- if (add_cache(domain, uraw, urange) < 0)
+ if (add_cache(domain, uraw, urange) < 0) {
+ free(uraw);
+ free(lraw);
+ free(range);
return -1;
+ }
} else {
uraw = strdup(urange);
if (! uraw) {
log_error("strdup failed %s", strerror(errno));
+ free(lraw);
+ free(range);
return -1;
}
}
@@ -1694,11 +1749,17 @@ untrans_context(const security_context_t incon, security_context_t *rcon) {
if (strcmp(lraw, uraw) == 0) {
if (asprintf(&raw, "%s", lraw) < 0) {
log_error("asprintf failed %s", strerror(errno));
+ free(uraw);
+ free(lraw);
+ free(range);
return -1;
}
} else {
if (asprintf(&raw, "%s-%s", lraw, uraw) < 0) {
log_error("asprintf failed %s", strerror(errno));
+ free(uraw);
+ free(lraw);
+ free(range);
return -1;
}
}
diff --git mcstrans-2.8/src/mcstransd.c mcstrans-2.8/src/mcstransd.c
index d7fc5de..a5a63d7 100644
--- mcstrans-2.8/src/mcstransd.c
+++ mcstrans-2.8/src/mcstransd.c
@@ -345,6 +345,7 @@ process_events(struct pollfd **ufds, int *nfds)
/* Setup pollfd for deletion later. */
(*ufds)[ii].fd = -1;
close(connfd);
+ connfd = -1;
/* So we don't get bothered later */
revents = revents & ~(POLLHUP);
}
@@ -358,10 +359,11 @@ process_events(struct pollfd **ufds, int *nfds)
/* Set the pollfd up for deletion later. */
(*ufds)[ii].fd = -1;
close(connfd);
+ connfd = -1;
revents = revents & ~(POLLHUP);
}
- if (revents) {
+ if (revents && connfd != -1) {
syslog(LOG_ERR, "Unknown/error events (%x) encountered"
" for fd (%d)\n", revents, connfd);

27
SPECS/mcstrans.spec
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@ -1,16 +1,14 @@
Summary: SELinux Translation Daemon
Name: mcstrans
Version: 2.8
Release: 2%{?dist}
Version: 2.9
Release: 1.2%{?dist}
License: GPL+
Url: https://github.com/SELinuxProject/selinux/wiki
Source: https://raw.githubusercontent.com/wiki/SELinuxProject/selinux/files/releases/20180524/mcstrans-2.8.tar.gz
Source: https://github.com/SELinuxProject/selinux/releases/download/20190315/mcstrans-2.9.tar.gz
Source2: secolor.conf.8
# download https://raw.githubusercontent.com/fedora-selinux/scripts/master/selinux/make-fedora-selinux-patch.sh
# run:
# $ VERSION=2.8 ./make-fedora-selinux-patch.sh mcstrans
# HEAD 2b4b29f00e5f0746ff10e09686a23c6e96a11d5f
Patch1: mcstrans-fedora.patch
# i=1; for j in 00*patch; do printf "Patch%04d: %s\n" $i $j; i=$((i+1));done
Patch0001: 0001-mcstrans-Fir-RESOURCE_LEAK-and-USE_AFTER_FREE-coveri.patch
Patch0002: 0002-mcstrans-Do-not-accept-incomplete-contexts.patch
BuildRequires: gcc
BuildRequires: libselinux-devel >= %{version}
BuildRequires: libcap-devel pcre-devel libsepol-devel libsepol-static
@ -36,14 +34,13 @@ mcstrans provides an translation daemon to translate SELinux categories
from internal representations to user defined representation.
%prep
%autosetup -p 1 -n mcstrans-%{version}
%autosetup -p 2 -n mcstrans-%{version}
%build
make clean
make LIBDIR="%{_libdir}" LDFLAGS="%{?__global_ldflags}" CFLAGS="%{__global_cflags}" %{?_smp_mflags}
%set_build_flags
make LIBDIR="%{_libdir}" %{?_smp_mflags}
%install
rm -rf %{buildroot}
mkdir -p %{buildroot}/%{_lib}
mkdir -p %{buildroot}/%{_libdir}
mkdir -p %{buildroot}%{_usr}/share/mcstrans
@ -75,6 +72,9 @@ rm -rf %{buildroot}
%{_mandir}/man8/mcs.8.gz
%{_mandir}/man8/mcstransd.8.gz
%{_mandir}/man8/setrans.conf.8.gz
%{_mandir}/ru/man8/mcs.8.gz
%{_mandir}/ru/man8/mcstransd.8.gz
%{_mandir}/ru/man8/setrans.conf.8.gz
%{_mandir}/man8/secolor.conf.8.gz
/usr/sbin/mcstransd
%{_unitdir}/mcstrans.service
@ -92,6 +92,9 @@ rm -rf %{buildroot}
%{_usr}/share/mcstrans/util/*
%changelog
* Fri Apr 12 2019 Petr Lautrbach <plautrba@redhat.com> - 2.9-1.2
- SELinux userspace 2.9 release
* Sun Dec 16 2018 Petr Lautrbach <plautrba@redhat.com> - 2.8-2
- Fix RESOURCE_LEAK and USE_AFTER_FREE coverity scan defects