diff options
Diffstat (limited to 'sys/kern/kern_sig.c')
| -rw-r--r-- | sys/kern/kern_sig.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/kern/kern_sig.c b/sys/kern/kern_sig.c index 87a85a1958d..e4a17024f77 100644 --- a/sys/kern/kern_sig.c +++ b/sys/kern/kern_sig.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_sig.c,v 1.184 2015/10/09 01:10:27 deraadt Exp $ */ +/* $OpenBSD: kern_sig.c,v 1.185 2015/10/09 23:55:03 deraadt Exp $ */ /* $NetBSD: kern_sig.c,v 1.54 1996/04/22 01:38:32 christos Exp $ */ /* @@ -62,6 +62,7 @@ #include <sys/sched.h> #include <sys/user.h> #include <sys/syslog.h> +#include <sys/pledge.h> #include <sys/mount.h> #include <sys/syscallargs.h> @@ -569,6 +570,14 @@ sys_kill(struct proc *cp, void *v, register_t *retval) int pid = SCARG(uap, pid); int signum = SCARG(uap, signum); + if (cp->p_p->ps_flags & PS_PLEDGE) { + /* PLEDGE_PROC is required to signal another pid */ + if ((cp->p_p->ps_pledge & PLEDGE_PROC) || pid == cp->p_pid) + ; + else + return pledge_fail(cp, EPERM, PLEDGE_SELF); + } + if (((u_int)signum) >= NSIG) return (EINVAL); if (pid > 0) { |