kern/pmm: Fix potential memory corruption issue

vlang · Apr 17, 2024 · c59f7c5 · c59f7c5
1 parent ff21e54
commit c59f7c5
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/kernel/modules/limine/limine.v b/kernel/modules/limine/limine.v
@@ -172,6 +172,7 @@ pub mut:
 pub const (
 	limine_memmap_usable = 0
 	limine_memmap_bootloader_reclaimable = 5
+	limine_memmap_kernel_and_modules = 6
 )
 
 pub struct LimineMemmapEntry {

diff --git a/kernel/modules/memory/physical.v b/kernel/modules/memory/physical.v
@@ -38,7 +38,8 @@ pub fn pmm_init() {
 					 i, entries[i].base, entries[i].length, entries[i].@type)
 
 			if entries[i].@type != u32(limine.limine_memmap_usable)
-				&& entries[i].@type != u32(limine.limine_memmap_bootloader_reclaimable) {
+				&& entries[i].@type != u32(limine.limine_memmap_bootloader_reclaimable)
+				&& entries[i].@type != u32(limine.limine_memmap_kernel_and_modules) {
 				continue
 			}
 			top := entries[i].base + entries[i].length