diff options
| author | Corinna Vinschen <corinna@vinschen.de> | 2019-01-27 15:15:15 +0300 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2019-01-27 15:15:31 +0300 |
| commit | 69cc7a068656b5c6ef07ca079a213f801e02e650 (patch) | |
| tree | 2ddff680feabb4341b111702b34017f234b86a97 /winsup/cygwin/sigproc.cc | |
| parent | 0fb497165f8545470624012315aeaf37333c1ea2 (diff) | |
Cygwin: fork: restrict parent handle perms and drop handle after use
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diffstat (limited to 'winsup/cygwin/sigproc.cc')
| -rw-r--r-- | winsup/cygwin/sigproc.cc | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc index 92fa5ea3d..45e948251 100644 --- a/winsup/cygwin/sigproc.cc +++ b/winsup/cygwin/sigproc.cc @@ -814,8 +814,9 @@ child_info::child_info (unsigned in_cb, child_info_types chtype, allow the child to duplicate handles from the parent to itself. */ parent = NULL; if (!DuplicateHandle (GetCurrentProcess (), GetCurrentProcess (), - GetCurrentProcess (), &parent, 0, true, - DUPLICATE_SAME_ACCESS)) + GetCurrentProcess (), &parent, + PROCESS_DUP_HANDLE | PROCESS_VM_READ + | PROCESS_QUERY_LIMITED_INFORMATION, TRUE, 0)) system_printf ("couldn't create handle to myself for child, %E"); } |