From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 26 Apr 2017 16:56:06 +0000 (-0400)
Subject: Add getpid() to the seccomp2 sandbox.
X-Git-Tag: tor-0.2.9.11~14^2^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=99e943998dcfd1263301224104ef98596325f9f2;p=thirdparty%2Ftor.git

Add getpid() to the seccomp2 sandbox.

We hadn't needed this before, because most getpid() callers on Linux
were looking at the vDSO version of getpid().  I don't know why at
least one version of OpenSSL seems to be ignoring the vDSO, but this
change should fix it.

Fixes bug 21943; bugfix on 0.2.5.1-alpha when the sandbox was
introduced.
---

diff --git a/src/common/sandbox.c b/src/common/sandbox.c
index ebc843e130..95c9f83b8d 100644
--- a/src/common/sandbox.c
+++ b/src/common/sandbox.c
@@ -155,6 +155,7 @@ static int filter_nopar_gen[] = {
 #ifdef __NR_getgid32
     SCMP_SYS(getgid32),
 #endif
+    SCMP_SYS(getpid),
 #ifdef __NR_getrlimit
     SCMP_SYS(getrlimit),
 #endif