forked from pool/systemd
Accepting request 199672 from home:elvigia:branches:Base:System
- 0009-polkit-Avoid-race-condition-in-scraping-proc.patch VUL-0: polkit: process subject race condition [bnc#835827] - Build with --disable-ima as the openSUSE kernel does not support IMA (CONFIG_IMA is not set) - Build with --disable-smack as the openSUSE kernel does not support smack (CONFIG_SECURITY_SMACK is not set) - 0009-polkit-Avoid-race-condition-in-scraping-proc.patch VUL-0: polkit: process subject race condition [bnc#835827] - Build with --disable-ima as the openSUSE kernel does not support IMA (CONFIG_IMA is not set) - Build with --disable-smack as the openSUSE kernel does not support smack (CONFIG_SECURITY_SMACK is not set) OBS-URL: https://build.opensuse.org/request/show/199672 OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=439
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0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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75
0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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@ -0,0 +1,75 @@
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From 851d079d0172539bf904abb58edd80d7cfe487ca Mon Sep 17 00:00:00 2001
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From: Colin Walters <walters@verbum.org>
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Date: Thu, 22 Aug 2013 13:55:21 -0400
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Subject: [PATCH 9/9] polkit: Avoid race condition in scraping /proc
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If a calling process execve()s a setuid program, it can appear to be
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uid 0. Since we're receiving requests over DBus, avoid this by simply
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passing system-bus-name as a subject.
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---
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src/shared/polkit.c | 31 +++++--------------------------
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1 file changed, 5 insertions(+), 26 deletions(-)
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diff --git a/src/shared/polkit.c b/src/shared/polkit.c
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index cea7074..1c5e9e3 100644
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--- a/src/shared/polkit.c
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+++ b/src/shared/polkit.c
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@@ -38,12 +38,8 @@ int verify_polkit(
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#ifdef ENABLE_POLKIT
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DBusMessage *m = NULL, *reply = NULL;
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- const char *unix_process = "unix-process", *pid = "pid", *starttime = "start-time", *cancel_id = "";
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+ const char *system_bus_name = "system-bus-name", *name = "name", *cancel_id = "";
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uint32_t flags = interactive ? 1 : 0;
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- pid_t pid_raw;
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- uint32_t pid_u32;
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- unsigned long long starttime_raw;
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- uint64_t starttime_u64;
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DBusMessageIter iter_msg, iter_struct, iter_array, iter_dict, iter_variant;
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int r;
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dbus_bool_t authorized = FALSE, challenge = FALSE;
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@@ -68,14 +64,6 @@ int verify_polkit(
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#ifdef ENABLE_POLKIT
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- pid_raw = bus_get_unix_process_id(c, sender, error);
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- if (pid_raw == 0)
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- return -EINVAL;
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-
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- r = get_starttime_of_pid(pid_raw, &starttime_raw);
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- if (r < 0)
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- return r;
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-
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m = dbus_message_new_method_call(
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"org.freedesktop.PolicyKit1",
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"/org/freedesktop/PolicyKit1/Authority",
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@@ -86,22 +74,13 @@ int verify_polkit(
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dbus_message_iter_init_append(m, &iter_msg);
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- pid_u32 = (uint32_t) pid_raw;
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- starttime_u64 = (uint64_t) starttime_raw;
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-
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if (!dbus_message_iter_open_container(&iter_msg, DBUS_TYPE_STRUCT, NULL, &iter_struct) ||
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- !dbus_message_iter_append_basic(&iter_struct, DBUS_TYPE_STRING, &unix_process) ||
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+ !dbus_message_iter_append_basic(&iter_struct, DBUS_TYPE_STRING, &system_bus_name) ||
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!dbus_message_iter_open_container(&iter_struct, DBUS_TYPE_ARRAY, "{sv}", &iter_array) ||
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!dbus_message_iter_open_container(&iter_array, DBUS_TYPE_DICT_ENTRY, NULL, &iter_dict) ||
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- !dbus_message_iter_append_basic(&iter_dict, DBUS_TYPE_STRING, &pid) ||
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- !dbus_message_iter_open_container(&iter_dict, DBUS_TYPE_VARIANT, "u", &iter_variant) ||
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- !dbus_message_iter_append_basic(&iter_variant, DBUS_TYPE_UINT32, &pid_u32) ||
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- !dbus_message_iter_close_container(&iter_dict, &iter_variant) ||
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- !dbus_message_iter_close_container(&iter_array, &iter_dict) ||
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- !dbus_message_iter_open_container(&iter_array, DBUS_TYPE_DICT_ENTRY, NULL, &iter_dict) ||
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- !dbus_message_iter_append_basic(&iter_dict, DBUS_TYPE_STRING, &starttime) ||
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- !dbus_message_iter_open_container(&iter_dict, DBUS_TYPE_VARIANT, "t", &iter_variant) ||
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- !dbus_message_iter_append_basic(&iter_variant, DBUS_TYPE_UINT64, &starttime_u64) ||
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+ !dbus_message_iter_append_basic(&iter_dict, DBUS_TYPE_STRING, &name) ||
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+ !dbus_message_iter_open_container(&iter_dict, DBUS_TYPE_VARIANT, "s", &iter_variant) ||
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+ !dbus_message_iter_append_basic(&iter_variant, DBUS_TYPE_STRING, &sender) ||
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!dbus_message_iter_close_container(&iter_dict, &iter_variant) ||
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!dbus_message_iter_close_container(&iter_array, &iter_dict) ||
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!dbus_message_iter_close_container(&iter_struct, &iter_array) ||
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--
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1.8.1.4
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@ -1,3 +1,21 @@
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-------------------------------------------------------------------
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Wed Sep 18 23:55:09 UTC 2013 - crrodriguez@opensuse.org
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- 0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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VUL-0: polkit: process subject race condition [bnc#835827]
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-------------------------------------------------------------------
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Wed Sep 18 23:45:54 UTC 2013 - crrodriguez@opensuse.org
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- Build with --disable-ima as the openSUSE kernel
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does not support IMA (CONFIG_IMA is not set)
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-------------------------------------------------------------------
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Wed Sep 18 23:40:27 UTC 2013 - crrodriguez@opensuse.org
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- Build with --disable-smack as the openSUSE kernel
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does not support smack (CONFIG_SECURITY_SMACK is not set)
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-------------------------------------------------------------------
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Wed Sep 18 12:05:47 UTC 2013 - fcrozat@suse.com
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@ -187,6 +187,8 @@ Patch52: 0005-core-cgroup-first-print-then-free.patch
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Patch53: 0006-swap-fix-reverse-dependencies.patch
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# PATCH-FIX-UPSTREAM 0008-swap-create-.wants-symlink-to-auto-swap-devices.patch really fix swap units
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Patch54: 0008-swap-create-.wants-symlink-to-auto-swap-devices.patch
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# PATCH-FIX-UPSTREAM 0009-polkit-Avoid-race-condition-in-scraping-proc.patch VUL-0: polkit: process subject race condition [bnc#835827]
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Patch55: 0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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# udev patches
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# PATCH-FIX-OPENSUSE 1001-re-enable-by_path-links-for-ata-devices.patch
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@ -441,6 +443,7 @@ cp %{SOURCE7} m4/
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%patch52 -p1
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%patch53 -p1
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%patch54 -p1
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%patch55 -p1
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# udev patches
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%patch1001 -p1
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@ -479,6 +482,8 @@ export V=1
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--with-rc-local-script-path-start=/etc/init.d/boot.local \
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--with-rc-local-script-path-stop=/etc/init.d/halt.local \
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--with-debug-shell=/bin/bash \
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--disable-smack \
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--disable-ima \
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CFLAGS="%{optflags}"
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make %{?_smp_mflags}
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@ -1,3 +1,21 @@
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-------------------------------------------------------------------
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Wed Sep 18 23:55:09 UTC 2013 - crrodriguez@opensuse.org
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- 0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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VUL-0: polkit: process subject race condition [bnc#835827]
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-------------------------------------------------------------------
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Wed Sep 18 23:45:54 UTC 2013 - crrodriguez@opensuse.org
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- Build with --disable-ima as the openSUSE kernel
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does not support IMA (CONFIG_IMA is not set)
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-------------------------------------------------------------------
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Wed Sep 18 23:40:27 UTC 2013 - crrodriguez@opensuse.org
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- Build with --disable-smack as the openSUSE kernel
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does not support smack (CONFIG_SECURITY_SMACK is not set)
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-------------------------------------------------------------------
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Wed Sep 18 12:05:47 UTC 2013 - fcrozat@suse.com
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@ -182,6 +182,8 @@ Patch52: 0005-core-cgroup-first-print-then-free.patch
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Patch53: 0006-swap-fix-reverse-dependencies.patch
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# PATCH-FIX-UPSTREAM 0008-swap-create-.wants-symlink-to-auto-swap-devices.patch really fix swap units
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Patch54: 0008-swap-create-.wants-symlink-to-auto-swap-devices.patch
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# PATCH-FIX-UPSTREAM 0009-polkit-Avoid-race-condition-in-scraping-proc.patch VUL-0: polkit: process subject race condition [bnc#835827]
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Patch55: 0009-polkit-Avoid-race-condition-in-scraping-proc.patch
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# udev patches
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# PATCH-FIX-OPENSUSE 1001-re-enable-by_path-links-for-ata-devices.patch
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@ -436,6 +438,7 @@ cp %{SOURCE7} m4/
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%patch52 -p1
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%patch53 -p1
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%patch54 -p1
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%patch55 -p1
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# udev patches
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%patch1001 -p1
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@ -474,6 +477,8 @@ export V=1
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--with-rc-local-script-path-start=/etc/init.d/boot.local \
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--with-rc-local-script-path-stop=/etc/init.d/halt.local \
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--with-debug-shell=/bin/bash \
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--disable-smack \
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--disable-ima \
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CFLAGS="%{optflags}"
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make %{?_smp_mflags}
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