diff options
Diffstat (limited to 'winsup/cygwin/fhandler_process.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_process.cc | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/winsup/cygwin/fhandler_process.cc b/winsup/cygwin/fhandler_process.cc index 09ca2c77c..eb36d9d56 100644 --- a/winsup/cygwin/fhandler_process.cc +++ b/winsup/cygwin/fhandler_process.cc @@ -143,8 +143,13 @@ fhandler_process::fstat (struct __stat64 *buf) fhandler_base::fstat (buf); path += proc_len + 1; pid = atoi (path); + pinfo p (pid); - if (!p) + /* If p->pid != pid, then pid is actually the Windows PID for an execed + Cygwin process, and the pinfo entry is the additional entry created + at exec time. We don't want to enable the user to access a process + entry by using the Win32 PID, though. */ + if (!p || p->pid != pid) { set_errno (ENOENT); return -1; @@ -320,8 +325,11 @@ fhandler_process::fill_filebuf () pid = atoi (path); pinfo p (pid); - - if (!p) + /* If p->pid != pid, then pid is actually the Windows PID for an execed + Cygwin process, and the pinfo entry is the additional entry created + at exec time. We don't want to enable the user to access a process + entry by using the Win32 PID, though. */ + if (!p || p->pid != pid) { set_errno (ENOENT); return false; |