diff options
| author | William Hubbs <w.d.hubbs@gmail.com> | 2017-10-24 10:37:01 -0500 |
|---|---|---|
| committer | William Hubbs <w.d.hubbs@gmail.com> | 2017-10-24 10:37:37 -0500 |
| commit | f5acc66db7d1a0bfad6a40eefc0240b80f52df94 (patch) | |
| tree | 58f7cdcb782d1b0368c6f1014fb7e04a37f453bd | |
| parent | fdce4769f2e0f4175163ffa181c7b3b2192f7b22 (diff) | |
rc_find_pids: ignore pids that are not in our pid namespace
X-Gentoo-Bug: 634634
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=634634
| -rw-r--r-- | src/librc/librc-daemon.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/librc/librc-daemon.c b/src/librc/librc-daemon.c index 56aaa91b..916cc142 100644 --- a/src/librc/librc-daemon.c +++ b/src/librc/librc-daemon.c @@ -80,9 +80,12 @@ rc_find_pids(const char *exec, const char *const *argv, uid_t uid, pid_t pid) DIR *procdir; struct dirent *entry; FILE *fp; + int rc; bool container_pid = false; bool openvz_host = false; char *line = NULL; + char my_ns[30]; + char proc_ns[30]; size_t len = 0; pid_t p; char buffer[PATH_MAX]; @@ -131,6 +134,14 @@ rc_find_pids(const char *exec, const char *const *argv, uid_t uid, pid_t pid) } } + memset(my_ns, 0, sizeof(my_ns)); + memset(proc_ns, 0, sizeof(proc_ns)); + if (exists("/proc/self/ns/pid")) { + rc = readlink("/proc/self/ns/pid", my_ns, sizeof(my_ns)); + if (rc <= 0) + my_ns[0] = '\0'; + } + while ((entry = readdir(procdir)) != NULL) { if (sscanf(entry->d_name, "%d", &p) != 1) continue; @@ -138,6 +149,14 @@ rc_find_pids(const char *exec, const char *const *argv, uid_t uid, pid_t pid) continue; if (pid != 0 && pid != p) continue; + snprintf(buffer, sizeof(buffer), "/proc/%d/ns/pid", p); + if (exists(buffer)) { + rc = readlink(buffer, proc_ns, sizeof(proc_ns)); + if (rc <= 0) + proc_ns[0] = '\0'; + } + if (strcmp(my_ns, proc_ns)) + continue; if (uid) { snprintf(buffer, sizeof(buffer), "/proc/%d", p); if (stat(buffer, &sb) != 0 || sb.st_uid != uid) |