Fail to alloc null page!

Question

Fail to alloc null page!

RaphaelVAnderson opened this issue 6 years ago · comments

I ran it on win-2008 x64 but i get this message:
[+] Detected kernel ntoskrnl.exe
[-] Fail to alloc null page!
Why did this happen?
How can i do?

nonick · Answer 1 · Thu May 31 2018 23:56:43 GMT+0800 (China Standard Time)

It simply means failure in mapping the null page (zero address page).

Since the vulnerability is null pointer deference , zero page is required while exploiting this type of vulnerability.

Actually I have no idea what's happening because I exploit my win 2008 x64 (Datacenter) successfully.

xiaoyuge16 · Answer 2 · Mon Jun 04 2018 20:36:33 GMT+0800 (China Standard Time)

my win 2008 x64 also shows:
[+] Detected kernel ntoskrnl.exe
[-] Fail to alloc null page!

0x410c · Answer 3 · Sat Mar 09 2019 19:38:17 GMT+0800 (China Standard Time)

i think it is because of hotfix KB3033929, please confirm!

also cant be the addresses changed?

i mean by allocating memory somewhere else?

nonick · Answer 4 · Tue Mar 12 2019 20:27:52 GMT+0800 (China Standard Time)

@0x410c No, it must be allocated exactly at null page.

Well, I don't see anything affecting null page allocation from , why u think this patch affects ?

0x410c · Answer 5 · Wed Mar 13 2019 14:59:04 GMT+0800 (China Standard Time)

i dont have any official refrences to give but it seems, after this hotfix ntAllocateVirtualMemory return INVALID_PARAMATER_2 error if the allocation address is less than 0x1000.