88 lines
2.7 KiB
Diff
88 lines
2.7 KiB
Diff
diff -up openssh-5.3p1/channels.c.cloexec openssh-5.3p1/channels.c
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--- openssh-5.3p1/channels.c.cloexec 2010-01-25 17:25:58.000000000 +0100
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+++ openssh-5.3p1/channels.c 2010-01-25 17:26:01.000000000 +0100
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@@ -60,6 +60,7 @@
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#include <termios.h>
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#include <unistd.h>
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#include <stdarg.h>
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+#include <fcntl.h>
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#include "openbsd-compat/sys-queue.h"
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#include "xmalloc.h"
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@@ -230,6 +231,18 @@ channel_register_fds(Channel *c, int rfd
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/* XXX set close-on-exec -markus */
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+ if (rfd != -1) {
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+ fcntl(rfd, F_SETFD, FD_CLOEXEC);
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+ }
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+
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+ if (wfd != -1 && wfd != rfd) {
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+ fcntl(wfd, F_SETFD, FD_CLOEXEC);
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+ }
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+
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+ if (efd != -1 && efd != rfd && efd != wfd) {
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+ fcntl(efd, F_SETFD, FD_CLOEXEC);
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+ }
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+
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c->rfd = rfd;
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c->wfd = wfd;
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c->sock = (rfd == wfd) ? rfd : -1;
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diff -up openssh-5.3p1/sshconnect2.c.cloexec openssh-5.3p1/sshconnect2.c
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--- openssh-5.3p1/sshconnect2.c.cloexec 2010-01-25 17:25:58.000000000 +0100
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+++ openssh-5.3p1/sshconnect2.c 2010-01-25 17:26:01.000000000 +0100
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@@ -39,6 +39,7 @@
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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+#include <fcntl.h>
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#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H)
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#include <vis.h>
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#endif
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@@ -1512,6 +1513,7 @@ ssh_keysign(Key *key, u_char **sigp, u_i
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return -1;
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}
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if (pid == 0) {
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+ fcntl(packet_get_connection_in(), F_SETFD, 0); /* keep the socket on exec */
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permanently_drop_suid(getuid());
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close(from[0]);
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if (dup2(from[1], STDOUT_FILENO) < 0)
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diff -up openssh-5.3p1/sshconnect.c.cloexec openssh-5.3p1/sshconnect.c
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--- openssh-5.3p1/sshconnect.c.cloexec 2009-06-21 10:53:53.000000000 +0200
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+++ openssh-5.3p1/sshconnect.c 2010-01-25 17:26:01.000000000 +0100
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@@ -38,6 +38,7 @@
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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+#include <fcntl.h>
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#include "xmalloc.h"
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#include "key.h"
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@@ -191,8 +192,11 @@ ssh_create_socket(int privileged, struct
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return sock;
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}
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sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
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- if (sock < 0)
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+ if (sock < 0) {
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error("socket: %.100s", strerror(errno));
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+ return -1;
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+ }
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+ fcntl(sock, F_SETFD, FD_CLOEXEC);
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/* Bind the socket to an alternative local IP address */
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if (options.bind_address == NULL)
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diff -up openssh-5.3p1/sshd.c.cloexec openssh-5.3p1/sshd.c
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--- openssh-5.3p1/sshd.c.cloexec 2010-01-25 17:25:55.000000000 +0100
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+++ openssh-5.3p1/sshd.c 2010-01-25 18:29:23.000000000 +0100
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@@ -1756,6 +1756,10 @@ main(int ac, char **av)
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sock_in, sock_out, newsock, startup_pipe, config_s[0]);
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}
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+ /* set fd cloexec on io/sockets to avoid to forward them to childern */
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+ fcntl(sock_out, F_SETFD, FD_CLOEXEC);
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+ fcntl(sock_in, F_SETFD, FD_CLOEXEC);
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+
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/*
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* Disable the key regeneration alarm. We will not regenerate the
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* key since we are no longer in a position to give it to anyone. We
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