commit 87f6478ade88a8d68dd1e39040cfbba012458334
author Nick Kralevich <nnk@google.com> Mon Oct 09 13:19:36 2017 -0700
committer Nick Kralevich <nnk@google.com> Mon Oct 09 13:19:36 2017 -0700
tree 9c555b8c9ba92af1cdee580453f48a639a70f22f
parent dbbfc08b7427c39e51089ea6218b30fe69fbf5ef

set O_CLOEXEC on /dev/ashmem

Ensure FDs don't leak across exec() boundaries.

Test: builds and boots. No obvious issues.
Change-Id: I00347b489ddb146b9d33442626f0e89a6cf26551

libcutils/ashmem-dev.c

diff --git a/libcutils/ashmem-dev.c b/libcutils/ashmem-dev.c
index b4abb79..95f2259 100644
--- a/libcutils/ashmem-dev.c
+++ b/libcutils/ashmem-dev.c
@@ -51,7 +51,7 @@
     int ret;
     struct stat st;
 
-    int fd = TEMP_FAILURE_RETRY(open(ASHMEM_DEVICE, O_RDWR));
+    int fd = TEMP_FAILURE_RETRY(open(ASHMEM_DEVICE, O_RDWR | O_CLOEXEC));
     if (fd < 0) {
         return fd;
     }