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| author | Corinna Vinschen <corinna@vinschen.de> | 2019-01-13 23:09:48 +0100 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2019-01-13 23:09:48 +0100 |
| commit | 8ae26f96ae710f8562162fd5d4e9a5d7434beb7b (patch) | |
| tree | 53de70fb1006cf4248f35227449a277bb3700705 | |
| parent | 7f601990327861fdcacadf5985c2ef5161cb2554 (diff) | |
| download | cygnal-8ae26f96ae710f8562162fd5d4e9a5d7434beb7b.tar.gz cygnal-8ae26f96ae710f8562162fd5d4e9a5d7434beb7b.tar.bz2 cygnal-8ae26f96ae710f8562162fd5d4e9a5d7434beb7b.zip | |
Cygwin: proc fd: return EACCES for HANDLE-less fds
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
| -rw-r--r-- | winsup/cygwin/fhandler_process_fd.cc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/winsup/cygwin/fhandler_process_fd.cc b/winsup/cygwin/fhandler_process_fd.cc index a3691d9c8..a33fd7539 100644 --- a/winsup/cygwin/fhandler_process_fd.cc +++ b/winsup/cygwin/fhandler_process_fd.cc @@ -69,6 +69,13 @@ fhandler_process_fd::fetch_fh (HANDLE &out_hdl, uint32_t flags) } hdl = pc.deserialize (buf); } + if (hdl == NULL) + { + if (proc != GetCurrentProcess ()) + CloseHandle (proc); + set_errno (EACCES); + return NULL; + } BOOL ret = DuplicateHandle (proc, hdl, GetCurrentProcess (), &hdl, 0, FALSE, DUPLICATE_SAME_ACCESS); if (proc != GetCurrentProcess ()) |