sigaltstack is directly used by setjmp on some architectures. it only

refers to the process itself.  pledge should allow it.

diff --git a/sys/kern/kern_pledge.c b/sys/kern/kern_pledge.c
index e003c80..037ec1b 100644 (file)
--- a/sys/kern/kern_pledge.c
+++ b/sys/kern/kern_pledge.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: kern_pledge.c,v 1.13 2015/10/11 15:40:48 deraadt Exp $        */
+/*     $OpenBSD: kern_pledge.c,v 1.14 2015/10/11 16:01:06 deraadt Exp $        */
 
 /*
  * Copyright (c) 2015 Nicholas Marriott <nicm@openbsd.org>
@@ -89,6 +89,7 @@ const u_int pledge_syscalls[SYS_MAXSYSCALL] = {
 
        [SYS_sendsyslog] = PLEDGE_SELF,
        [SYS_nanosleep] = PLEDGE_SELF,
+       [SYS_sigaltstack] = PLEDGE_SELF,
        [SYS_sigprocmask] = PLEDGE_SELF,
        [SYS_sigsuspend] = PLEDGE_SELF,
        [SYS_sigaction] = PLEDGE_SELF,