Commit 13479d52 authored by Jeff Dike's avatar Jeff Dike Committed by Linus Torvalds
Browse files

[PATCH] uml: Page fault fixes

Any access to a PROT_NONE page should segfault the process.  A JVM seems to do
this on purpose.  Also, Al noticed some bogus code, which is now deleted.

Signed-off-by: default avatarJeff Dike <>
Cc: <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent ba9950c8
......@@ -57,10 +57,11 @@ int handle_page_fault(unsigned long address, unsigned long ip,
*code_out = SEGV_ACCERR;
if(is_write && !(vma->vm_flags & VM_WRITE))
goto out;
if(!(vma->vm_flags & (VM_READ | VM_EXEC)))
goto out;
page = address & PAGE_MASK;
pgd = pgd_offset(mm, page);
pud = pud_offset(pgd, page);
pmd = pmd_offset(pud, page);
do {
switch (handle_mm_fault(mm, vma, address, is_write)){
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment