lib/dump_stack: report process UID in dump_stack_print_info()

To make it easier to identify the crashing process, report effective UID when dumping the stack. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Suren Baghdasaryan <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
kdave · Jun 25, 2024 · d2917ff · d2917ff
1 parent 326c34e
commit d2917ff
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
@@ -54,8 +54,10 @@ void __init dump_stack_set_arch_desc(const char *fmt, ...)
  */
 void dump_stack_print_info(const char *log_lvl)
 {
-	printk("%sCPU: %d PID: %d Comm: %.20s %s%s %s %.*s" BUILD_ID_FMT "\n",
-	       log_lvl, raw_smp_processor_id(), current->pid, current->comm,
+	printk("%sCPU: %d UID: %u PID: %d Comm: %.20s %s%s %s %.*s" BUILD_ID_FMT "\n",
+	       log_lvl, raw_smp_processor_id(),
+	       __kuid_val(current_real_cred()->euid),
+	       current->pid, current->comm,
 	       kexec_crash_loaded() ? "Kdump: loaded " : "",
 	       print_tainted(),
 	       init_utsname()->release,