Now impossible to dereference a null vector in user mode

2019-12-20 22:11:22 +01:00 · 2019-12-20 22:11:22 +01:00 · 1de74e599b
parent 7cc39e37dc
commit 1de74e599b
1 changed files with 0 additions and 3 deletions
--- a/kaleid/kernel/mm/paging.c
+++ b/kaleid/kernel/mm/paging.c
@ -71,9 +71,6 @@ void MmInitPaging(void)
        MmPT[i] = ((ulong)(i*KPAGESIZE)) | MF_PRESENT | MF_READWRITE;
    }

-    // NULL VECTOR
-    MmPT[0] = ((ulong)(0*KPAGESIZE));
-
    for (volatile ulong i = 0; i <  NB_4K; i++) {
        MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE;
    }