[libvirt] [PATCH 2/2] Open /proc/PID/ns/* read-only to avoid getting permission denied
lxc-enter-namespace stopped working on recent kernels (at least 3.19+)
due to /proc/PID/ns/* file descriptors being opened RW. From outside
the namespace these can only be opened RO.
---
src/util/virprocess.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/util/virprocess.c b/src/util/virprocess.c
index ab1e039..7a79970 100644
--- a/src/util/virprocess.c
+++ b/src/util/virprocess.c
@@ -628,7 +628,7 @@ int virProcessGetNamespaces(pid_t pid,
ns[i]) < 0)
goto cleanup;
- if ((fd = open(nsfile, O_RDWR)) >= 0) {
+ if ((fd = open(nsfile, O_RDONLY)) >= 0) {
if (VIR_EXPAND_N(*fdlist, *nfdlist, 1) < 0) {
VIR_FORCE_CLOSE(fd);
goto cleanup;
--
2.1.4