systemd/SOURCES/0646-core-service-also-check-path-in-exec-commands.patch
2021-12-04 06:58:29 +00:00

40 lines
1.8 KiB
Diff

From 71ebbd2da606c9cb4da694bbcc925078f253f496 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Wed, 6 Oct 2021 00:19:41 +0900
Subject: [PATCH] core/service: also check path in exec commands
(cherry picked from commit 8688a389cabdff61efe187bb85cc1776de03c460)
Related: #2020239
---
src/core/service.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/core/service.c b/src/core/service.c
index 12adf89dd4..ae31973774 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -539,13 +539,21 @@ static int service_verify(Service *s) {
for (ServiceExecCommand c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
ExecCommand *command;
- LIST_FOREACH(command, command, s->exec_command[c])
+ LIST_FOREACH(command, command, s->exec_command[c]) {
+ if (!path_is_absolute(command->path) && !filename_is_valid(command->path)) {
+ log_unit_error(UNIT(s),
+ "Service %s= binary path \"%s\" is neither a valid executable name nor an absolute path. Refusing.",
+ command->path,
+ service_exec_command_to_string(c));
+ return -ENOEXEC;
+ }
if (strv_isempty(command->argv)) {
log_unit_error(UNIT(s),
"Service has an empty argv in %s=. Refusing.",
service_exec_command_to_string(c));
return -ENOEXEC;
}
+ }
}
if (!s->exec_command[SERVICE_EXEC_START] && !s->exec_command[SERVICE_EXEC_STOP]) {