From d2917ff19962951399bc33f596648836cc5a0be4 Mon Sep 17 00:00:00 2001 From: Suren Baghdasaryan Date: Fri, 14 Jun 2024 21:13:58 -0700 Subject: [PATCH] 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/20240615041358.103791-1-surenb@google.com Signed-off-by: Suren Baghdasaryan Signed-off-by: Andrew Morton --- lib/dump_stack.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/dump_stack.c b/lib/dump_stack.c index 8b6b70eaf949..1a996fbbf50a 100644 --- 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,