[newlib-cygwin] Cygwin: fork: fix child process permissions, take 3
Corinna Vinschen
corinna@sourceware.org
Sun Mar 3 11:16:00 GMT 2019
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=38dde5f4c4c2e33dfe6dfb9d1bc593d13d85a290
commit 38dde5f4c4c2e33dfe6dfb9d1bc593d13d85a290
Author: Corinna Vinschen <corinna@vinschen.de>
Date: Sun Mar 3 10:59:13 2019 +0100
Cygwin: fork: fix child process permissions, take 3
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>
Diff:
---
winsup/cygwin/wincap.cc | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/winsup/cygwin/wincap.cc b/winsup/cygwin/wincap.cc
index 78cc411..5bc9c37 100644
--- a/winsup/cygwin/wincap.cc
+++ b/winsup/cygwin/wincap.cc
@@ -73,6 +73,31 @@ wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
{
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,
+ {
+ is_server:false,
+ needs_count_in_si_lpres2:false,
needs_query_information:false,
has_gaa_largeaddress_bug:false,
has_broken_alloc_console:true,
@@ -273,9 +298,11 @@ wincapc::init ()
caps = &wincap_7;
break;
case 2:
- case 3:
caps = &wincap_8;
break;
+ case 3:
+ caps = &wincap_8_1;
+ break;
default:
caps = &wincap_10_1507;
break;
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