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proc-utils: Make sure cgroup length is valid before removing EOF char

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This fixes a Coverity Scan defect.
This commit is contained in:
Julian Bouzas 2025-03-05 13:36:04 -05:00
parent 0f3e005a92
commit ce4f9b08a9
1 changed files with 5 additions and 3 deletions
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8
lib/wp/proc-utils.c
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@ -179,10 +179,12 @@ wp_proc_utils_get_proc_info (pid_t pid)
/* Get cgroup */ /* Get cgroup */
{ {
g_autofree gchar *path = g_strdup_printf ("/proc/%d/cgroup", pid); g_autofree gchar *path = g_strdup_printf ("/proc/%d/cgroup", pid);
if (g_file_get_contents (path, &ret->cgroup, &length, &error)) if (g_file_get_contents (path, &ret->cgroup, &length, &error)) {
ret->cgroup [length - 1] = '\0'; /* Remove EOF character */ if (length > 0)
else ret->cgroup [length - 1] = '\0'; /* Remove EOF character */
} else {
wp_warning ("failed to get cgroup for PID %d: %s", pid, error->message); wp_warning ("failed to get cgroup for PID %d: %s", pid, error->message);
}
} }
/* Get args */ /* Get args */