pivot_root(2) man page recommend calling chdir(/), so do it
Signed-off-by: Etienne CHAMPETIER <[email protected]>
---
jail/jail.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/jail/jail.c b/jail/jail.c
index 541363a..8157a8f 100644
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -162,6 +162,10 @@ static int build_jail_fs(void)
ERROR("pivot_root failed: %s\n", strerror(errno));
return -1;
}
+ if (chdir("/")) {
+ ERROR("chdir(/) failed: %s\n", strerror(errno));
+ return -1;
+ }
snprintf(dirbuf, sizeof(dirbuf), "/old%s", jail_root);
rmdir(dirbuf);
--
1.9.1
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