From 75b8b6863ae15a059e5213cc6aeed7f975811daa Mon Sep 17 00:00:00 2001
From: Michael Lotz <mmlr@mlotz.ch>
Date: Fri, 31 Jul 2020 22:47:20 +0200
Subject: [PATCH] kernel: Return after panic when freeing invalid interrupt
 range.

The panic is continuable, but moving on with the free will overrun the
array and corrupt memory.

Change-Id: I9a5849a40158042150a25740ca57d711aee872bf
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3114
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
---
 src/system/kernel/int.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/system/kernel/int.cpp b/src/system/kernel/int.cpp
index e9e5a0c5fb..1cd125538b 100644
--- a/src/system/kernel/int.cpp
+++ b/src/system/kernel/int.cpp
@@ -696,6 +696,7 @@ free_io_interrupt_vectors(long count, long startVector)
 	if (startVector + count > NUM_IO_VECTORS) {
 		panic("invalid start vector %ld or count %ld supplied to "
 			"free_io_interrupt_vectors\n", startVector, count);
+		return;
 	}
 
 	dprintf("free_io_interrupt_vectors: freeing %ld vectors starting "