upstream: Replace all calls to signal(2) with a wrapper around

sigaction(2). This wrapper blocks all other signals during the handler
preventing races between handlers, and sets SA_RESTART which should reduce
the potential for short read/write operations.

OpenBSD-Commit-ID: 5e047663fd77a40d7b07bdabe68529df51fd2519

1 files changed, 2 insertions, 2 deletions

diff --git a/sshbuf.c b/sshbuf.c
index adfddf775..f4f7a220f 100644
--- a/sshbuf.c
+++ b/sshbuf.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: sshbuf.c,v 1.13 2018/11/16 06:10:29 djm Exp $ */
+/*      $OpenBSD: sshbuf.c,v 1.14 2020/01/23 07:10:22 dtucker Exp $     */
 /*
  * Copyright (c) 2011 Damien Miller
  *
@@ -42,7 +42,7 @@ sshbuf_check_sanity(const struct sshbuf *buf)
             buf->off > buf->size)) {
                 /* Do not try to recover from corrupted buffer internals */
                 SSHBUF_DBG(("SSH_ERR_INTERNAL_ERROR"));
-                signal(SIGSEGV, SIG_DFL);
+                ssh_signal(SIGSEGV, SIG_DFL);
                 raise(SIGSEGV);
                 return SSH_ERR_INTERNAL_ERROR;
         }