Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-04-27 09:00:27 +00:00
Code Issues Projects Releases Packages Wiki Activity

[NTOS:PS] Fix size handling in ProcessDeviceMap

Browse source 
If you want to know the details, browse history or use git blame.
This commit is contained in:
Timo Kreuzer 2020-09-27 17:32:27 +02:00
parent 895dccd4ac
commit d74037b666
1 changed files with 2 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
ntoskrnl/ps/query.c
View file

@ -564,12 +564,6 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
/* DOS Device Map */ /* DOS Device Map */
case ProcessDeviceMap: case ProcessDeviceMap:
if (ProcessInformationLength < sizeof(PROCESS_DEVICEMAP_INFORMATION))
{
Status = STATUS_INFO_LENGTH_MISMATCH;
break;
}
if (ProcessInformationLength == sizeof(PROCESS_DEVICEMAP_INFORMATION_EX)) if (ProcessInformationLength == sizeof(PROCESS_DEVICEMAP_INFORMATION_EX))
{ {
/* Protect read in SEH */ /* Protect read in SEH */
@ -601,7 +595,8 @@ NtQueryInformationProcess(IN HANDLE ProcessHandle,
} }
else else
{ {
if (ProcessInformationLength != sizeof(PROCESS_DEVICEMAP_INFORMATION)) /* This has to be the size of the Query union field for x64 compatibility! */
if (ProcessInformationLength != RTL_FIELD_SIZE(PROCESS_DEVICEMAP_INFORMATION, Query))
{ {
Status = STATUS_INFO_LENGTH_MISMATCH; Status = STATUS_INFO_LENGTH_MISMATCH;
break; break;