From: meissner@suse.com, cgrobertson@suse.com

Subject: allow Firefox to access addtional process information

References:

http://bugzilla.suse.com/show_bug.cgi?id=1167132

bsc#1174284 - Firefox tab just crashed in FIPS mode

diff --git a/security/sandbox/linux/Sandbox.cpp b/security/sandbox/linux/Sandbox.cpp

--- a/security/sandbox/linux/Sandbox.cpp

+++ b/security/sandbox/linux/Sandbox.cpp

     SANDBOX_LOG_ERROR("failed to open plugin file %s: %s", aFilePath,

                       strerror(errno));

     MOZ_CRASH("failed while trying to open the plugin file ");

   }

   auto files = new SandboxOpenedFiles();

   files->Add(std::move(plugin));

   files->Add("/etc/ld.so.cache");  // Needed for NSS in clearkey.

   files->Add("/sys/devices/system/cpu/cpu0/tsc_freq_khz");

   files->Add("/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");

   files->Add("/proc/cpuinfo");  // Info also available via CPUID instruction.

   files->Add("/proc/sys/crypto/fips_enabled");  // Needed for NSS in clearkey.

 #ifdef __i386__

   files->Add("/proc/self/auxv");  // Info also in process's address space.

 #endif

diff --git a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp

--- a/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp

+++ b/security/sandbox/linux/broker/SandboxBrokerPolicyFactory.cpp

     policy->AddDir(rdwr, "/dev/dri");

   }

   // Bug 1575985: WASM library sandbox needs RW access to /dev/null

   policy->AddPath(rdwr, "/dev/null");

   // Read permissions

   policy->AddPath(rdonly, "/dev/urandom");

+  policy->AddPath(rdonly, "/dev/random");

+  policy->AddPath(rdonly, "/proc/sys/crypto/fips_enabled");

   policy->AddPath(rdonly, "/proc/cpuinfo");

   policy->AddPath(rdonly, "/proc/meminfo");

   policy->AddDir(rdonly, "/sys/devices/cpu");

   policy->AddDir(rdonly, "/sys/devices/system/cpu");

   policy->AddDir(rdonly, "/lib");

   policy->AddDir(rdonly, "/lib64");

   policy->AddDir(rdonly, "/usr/lib");

   policy->AddDir(rdonly, "/usr/lib32");