From eff158b75dee466ac0c37a17b2165072ee0b7aeb Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Thu, 5 May 2022 02:14:43 +0200 Subject: hurd spawni: Fix reauthenticating closed fds When an fd is closed, the port cell remains, but the port becomes MACH_PORT_NULL, so we have to guard against it. --- sysdeps/mach/hurd/spawni.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sysdeps/mach/hurd') diff --git a/sysdeps/mach/hurd/spawni.c b/sysdeps/mach/hurd/spawni.c index f19b688411..ffc62e660e 100644 --- a/sysdeps/mach/hurd/spawni.c +++ b/sysdeps/mach/hurd/spawni.c @@ -154,7 +154,7 @@ __spawni (pid_t *pid, const char *file, reauthenticated, or was newly opened on behalf of the child. */ error_t reauthenticate_fd (int fd) { - if (dtable_cells[fd] != NULL) + if (dtable_cells[fd] != NULL && dtable[fd] != MACH_PORT_NULL) { file_t newfile; mach_port_t ref = __mach_reply_port (); -- cgit 1.4.1