about summary refs log tree commit diff
path: root/sysdeps/mach/hurd
diff options
context:
space:
mode:
authorSamuel Thibault <samuel.thibault@ens-lyon.org>2023-04-25 00:14:58 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2023-04-25 00:14:58 +0200
commit323fe6a1a9204e2126df63cb81a88831d1cdeaf5 (patch)
tree940ba059ef0a8c87f267657d76f00b9234e8708b /sysdeps/mach/hurd
parent5fa8945605fc0fe8df5162e0945518c061dc5ba4 (diff)
downloadglibc-323fe6a1a9204e2126df63cb81a88831d1cdeaf5.tar.gz
glibc-323fe6a1a9204e2126df63cb81a88831d1cdeaf5.tar.xz
glibc-323fe6a1a9204e2126df63cb81a88831d1cdeaf5.zip
hurd: Do not take any flag from the CMSG_DATA
As fixed in 0822e3552a78 ("hurd: Don't pass FD_CLOEXEC in CMSG_DATA"),
senders currently don't have any flag to pass.  We shouldn't blindly take
random flags that senders could be erroneously giving us.
Diffstat (limited to 'sysdeps/mach/hurd')
-rw-r--r--sysdeps/mach/hurd/recvmsg.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/recvmsg.c b/sysdeps/mach/hurd/recvmsg.c
index e06b0fe3ba..4254dca627 100644
--- a/sysdeps/mach/hurd/recvmsg.c
+++ b/sysdeps/mach/hurd/recvmsg.c
@@ -201,8 +201,10 @@ __libc_recvmsg (int fd, struct msghdr *message, int flags)
 	    err = reauthenticate (ports[i], &newports[newfds]);
 	    if (err)
 	      goto cleanup;
+	    /* We do not currently take any flag from the sender.  */
 	    fds[j] = opened_fds[newfds] = _hurd_intern_fd (newports[newfds],
-							   fds[j] | fd_flags,
+							   (fds[j] & 0)
+							   | fd_flags,
 							   0);
 	    if (fds[j] == -1)
 	      {