os-k-team/os-k
os-k-team/os-k
1
0
Fork 0
mirror of https://gitlab.os-k.eu/os-k-team/os-k.git synced 2023-08-25 14:03:10 +02:00
Code Releases Activity

Now impossible to dereference a null vector in user mode

Browse Source
This commit is contained in:
Adrien Bourmault 2019-12-20 22:11:22 +01:00
parent 7cc39e37dc
commit 1de74e599b
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
kaleid/kernel/mm/paging.c
View File

@ -71,9 +71,6 @@ void MmInitPaging(void)
MmPT[i] = ((ulong)(i*KPAGESIZE)) | MF_PRESENT | MF_READWRITE; 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++) { for (volatile ulong i = 0; i < NB_4K; i++) {
MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE; MmPD[i] = (ulong)(&MmPT[i*512])| MF_PRESENT | MF_READWRITE;
} }