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Cygwin: fork: fix child process permissions, take 3

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Per MSDN VirtualQueryEx requires PROCESS_QUERY_INFORMATION.
Testing showed that PROCESS_QUERY_LIMITED_INFORMATION is sufficient
since Windows 8.1.  The assumption that Windows 8 is the same as
Windows 8 was not correct, it requires PROCESS_QUERY_INFORMATION
as well.

Fix that by splitting the Windows 8 wincaps into one for Windows 8
and one for Windows 8.1.  Set needs_query_information for Windows 8.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2019-03-03 10:59:13 +01:00
parent 4abac62193
commit 38dde5f4c4
1 changed files with 28 additions and 1 deletions
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29
winsup/cygwin/wincap.cc
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@ -69,6 +69,31 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
}; };
wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = { wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2,
{
is_server:false,
needs_count_in_si_lpres2:false,
needs_query_information:true,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
has_console_logon_sid:true,
has_precise_system_time:true,
has_microsoft_accounts:true,
has_processor_groups:true,
has_broken_prefetchvm:false,
has_new_pebteb_region:false,
has_broken_whoami:false,
has_unprivileged_createsymlink:false,
has_unbiased_interrupt_time:true,
has_precise_interrupt_time:false,
has_posix_unlink_semantics:false,
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
},
};
wincaps wincap_8_1 __attribute__((section (".cygwin_dll_common"), shared)) = {
def_guard_pages:2, def_guard_pages:2,
{ {
is_server:false, is_server:false,
@ -273,9 +298,11 @@ wincapc::init ()
caps = &wincap_7; caps = &wincap_7;
break; break;
case 2: case 2:
case 3:
caps = &wincap_8; caps = &wincap_8;
break; break;
case 3:
caps = &wincap_8_1;
break;
default: default:
caps = &wincap_10_1507; caps = &wincap_10_1507;
break; break;