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close all fds > STDERR_FILENO before executing the pipe program.

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OK bluhm@
This commit is contained in:
martijn 2020-09-16 11:03:36 +00:00
parent 9dbe2cd18f
commit 2338eccd22
1 changed files with 2 additions and 1 deletions
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3
usr.sbin/syslogd/privsep.c
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@ -1,4 +1,4 @@
/* $OpenBSD: privsep.c,v 1.71 2019/07/05 13:23:27 bluhm Exp $ */
/* $OpenBSD: privsep.c,v 1.72 2020/09/16 11:03:36 martijn Exp $ */
/*
* Copyright (c) 2003 Anil Madhavapeddy <anil@recoil.org>
@ -519,6 +519,7 @@ open_pipe(char *cmd)
if (dup2(fd[0], STDIN_FILENO) == -1)
err(1, "dup2 failed");
closefrom(STDERR_FILENO + 1);
if (execv("/bin/sh", argp) == -1)
err(1, "execv %s", cmd);
/* NOTREACHED */