From ef90e8f9db911626c8f5c18c49cf6fe445afdefb Mon Sep 17 00:00:00 2001 From: Daan De Meyer Date: Thu, 30 Nov 2023 11:01:14 +0100 Subject: [PATCH] Make sure we close bpf outer map fd in systemd-executor Not doing so leaks it into the child service and causes selinux denials. --- src/core/execute-serialize.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/core/execute-serialize.c b/src/core/execute-serialize.c index 56c4f4d..6c19cd4 100644 --- a/src/core/execute-serialize.c +++ b/src/core/execute-serialize.c @@ -1625,6 +1625,12 @@ static int exec_parameters_deserialize(ExecParameters *p, FILE *f, FDSet *fds) { if (fd < 0) continue; + /* This is special and relies on close-on-exec semantics, make sure it's + * there */ + r = fd_cloexec(fd, true); + if (r < 0) + return r; + p->bpf_outer_map_fd = fd; } else if ((val = startswith(l, "exec-parameters-notify-socket="))) { r = free_and_strdup(&p->notify_socket, val); -- 2.7.4