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-rw-r--r--winsup/cygwin/spawn.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/winsup/cygwin/spawn.cc b/winsup/cygwin/spawn.cc
index ddd3b731b..37769f78e 100644
--- a/winsup/cygwin/spawn.cc
+++ b/winsup/cygwin/spawn.cc
@@ -1052,7 +1052,7 @@ av::fixup (const char *prog_arg, path_conv& real_path, const char *ext,
status = NtOpenFile (&h, SYNCHRONIZE | GENERIC_READ,
real_path.get_object_attr (attr, sec_none_nih),
- &io, FILE_SHARE_READ | FILE_SHARE_WRITE,
+ &io, FILE_SHARE_VALID_FLAGS,
FILE_SYNCHRONOUS_IO_NONALERT
| FILE_OPEN_FOR_BACKUP_INTENT
| FILE_NON_DIRECTORY_FILE);