[tracker] libtracker-common: Whitelist umask

[Carlos Garnacho <carlosg src gnome org>]

commit 73f5cd54a2e8b4ea8fbb4b3997b24d5e4aebd671
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sat Dec 17 15:46:19 2016 +0100

    libtracker-common: Whitelist umask
    
    Let's give extractor modules the illusion that they can write
    something, they actually can't.

 src/libtracker-common/tracker-seccomp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-common/tracker-seccomp.c b/src/libtracker-common/tracker-seccomp.c
index 81ddb09..2d4cfcd 100644
--- a/src/libtracker-common/tracker-seccomp.c
+++ b/src/libtracker-common/tracker-seccomp.c
@@ -83,6 +83,7 @@ tracker_seccomp_init (void)
        ALLOW_RULE (utime);
        ALLOW_RULE (time);
        ALLOW_RULE (fsync);
+       ALLOW_RULE (umask);
        /* Processes and threads */
        ALLOW_RULE (clone);
        ALLOW_RULE (futex);