boards native_posix: Detect attempt to configure not existing int

Prevent overrunning the irq vector table. This is not happening today in tree, but coverity thinks it may. Checking for it to prevent it is not a bad idea anyhow, so let's do it. Signed-off-by: Alberto Escolar Piedras <[email protected]>
zephyrproject-rtos · Feb 12, 2024 · 2de9018 · 2de9018
1 parent e81acaf
commit 2de9018
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/boards/posix/native_posix/irq_handler.c b/boards/posix/native_posix/irq_handler.c
@@ -228,6 +228,11 @@ int posix_get_current_irq(void)
 void posix_isr_declare(unsigned int irq_p, int flags, void isr_p(const void *),
 		       const void *isr_param_p)
 {
+	if (irq_p >= N_IRQS) {
+		posix_print_error_and_exit("Attempted to configure not existent interrupt %u\n",
+					   irq_p);
+		return;
+	}
 	irq_vector_table[irq_p].irq   = irq_p;
 	irq_vector_table[irq_p].func  = isr_p;
 	irq_vector_table[irq_p].param = isr_param_p;