Use the O_PATH and O_DIRECTORY flags when opening the "/dev" path for the
subsequent openat() call to ensure that it is indeed a directory.
Signed-off-by: Jo-Philipp Wich <j...@mein.io>
---
utils/utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils/utils.c b/utils/utils.c
index ebf5447..e2e3396 100644
--- a/utils/utils.c
+++ b/utils/utils.c
@@ -165,7 +165,7 @@ int patch_fd(const char *device, int fd, int flags)
device = "/dev/null";
if (*device != '/') {
- dfd = open("/dev", O_RDONLY);
+ dfd = open("/dev", O_PATH|O_DIRECTORY);
if (dfd < 0)
return -1;
--
2.1.4
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