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| author | Lennart Poettering <lennart@poettering.net> | 2017-12-29 18:13:38 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2018-01-04 13:27:27 +0100 |
| commit | 85afeae88c59ce3e6fb534facbcc6fc819f95a0f (patch) | |
| tree | bc243b9cc0905dd5f878e5a2dc9fce76f4884800 /src/shared/spawn-polkit-agent.c | |
| parent | tree-wide: use EXIT_SUCCESS when comparing child process exit statuses (diff) | |
| download | systemd-85afeae88c59ce3e6fb534facbcc6fc819f95a0f.tar.xz systemd-85afeae88c59ce3e6fb534facbcc6fc819f95a0f.zip | |
pager,agent: insist that we are called from the main thread
We maintain static process-wide variables in these subsystems without
locking, hence let's refuse operation unless we are called from the main
thread (which we do anyway) just as a safety precaution.
Diffstat (limited to 'src/shared/spawn-polkit-agent.c')
| -rw-r--r-- | src/shared/spawn-polkit-agent.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/shared/spawn-polkit-agent.c b/src/shared/spawn-polkit-agent.c index 886248b9f9..3c93c79ceb 100644 --- a/src/shared/spawn-polkit-agent.c +++ b/src/shared/spawn-polkit-agent.c @@ -52,6 +52,9 @@ int polkit_agent_open(void) { if (!isatty(STDIN_FILENO)) return 0; + if (!is_main_thread()) + return -EPERM; + if (pipe2(pipe_fd, 0) < 0) return -errno; |