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-rw-r--r--include/linux/kernel.h1
-rw-r--r--kernel/kcsan/report.c4
-rw-r--r--kernel/panic.c9
-rw-r--r--kernel/sched/core.c3
-rw-r--r--lib/ubsan.c3
-rw-r--r--mm/kasan/report.c4
6 files changed, 14 insertions, 10 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 084d97070ed9..394f10fc29aa 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -320,6 +320,7 @@ extern long (*panic_blink)(int state);
__printf(1, 2)
void panic(const char *fmt, ...) __noreturn __cold;
void nmi_panic(struct pt_regs *regs, const char *msg);
+void check_panic_on_warn(const char *origin);
extern void oops_enter(void);
extern void oops_exit(void);
extern bool oops_may_print(void);
diff --git a/kernel/kcsan/report.c b/kernel/kcsan/report.c
index d3bf87e6007c..069830f5a5d2 100644
--- a/kernel/kcsan/report.c
+++ b/kernel/kcsan/report.c
@@ -630,8 +630,8 @@ void kcsan_report(const volatile void *ptr, size_t size, int access_type,
bool reported = value_change != KCSAN_VALUE_CHANGE_FALSE &&
print_report(value_change, type, &ai, other_info);
- if (reported && panic_on_warn)
- panic("panic_on_warn set ...\n");
+ if (reported)
+ check_panic_on_warn("KCSAN");
release_report(&flags, other_info);
}
diff --git a/kernel/panic.c b/kernel/panic.c
index 09f0802212c3..0da47888f72e 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -192,6 +192,12 @@ static void panic_print_sys_info(void)
ftrace_dump(DUMP_ALL);
}
+void check_panic_on_warn(const char *origin)
+{
+ if (panic_on_warn)
+ panic("%s: panic_on_warn set ...\n", origin);
+}
+
/**
* panic - halt the system
* @fmt: The text string to print
@@ -630,8 +636,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint,
if (regs)
show_regs(regs);
- if (panic_on_warn)
- panic("panic_on_warn set ...\n");
+ check_panic_on_warn("kernel");
if (!regs)
dump_stack();
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a875bc59804e..1303a2607f1f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4280,8 +4280,7 @@ static noinline void __schedule_bug(struct task_struct *prev)
pr_err("Preemption disabled at:");
print_ip_sym(KERN_ERR, preempt_disable_ip);
}
- if (panic_on_warn)
- panic("scheduling while atomic\n");
+ check_panic_on_warn("scheduling while atomic");
dump_stack();
add_taint(TAINT_WARN, LOCKDEP_STILL_OK);
diff --git a/lib/ubsan.c b/lib/ubsan.c
index d81d107f64f4..ee14c46cac89 100644
--- a/lib/ubsan.c
+++ b/lib/ubsan.c
@@ -151,8 +151,7 @@ static void ubsan_epilogue(void)
current->in_ubsan--;
- if (panic_on_warn)
- panic("panic_on_warn set ...\n");
+ check_panic_on_warn("UBSAN");
}
static void handle_overflow(struct overflow_data *data, void *lhs,
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 91714acea0d6..2f5e96ac4d00 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -95,8 +95,8 @@ static void end_report(unsigned long *flags)
pr_err("==================================================================\n");
add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
spin_unlock_irqrestore(&report_lock, *flags);
- if (panic_on_warn && !test_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags))
- panic("panic_on_warn set ...\n");
+ if (!test_bit(KASAN_BIT_MULTI_SHOT, &kasan_flags))
+ check_panic_on_warn("KASAN");
kasan_enable_current();
}