only dump core if user has read permission on the text

SCCS-vsn: sys/kern/kern_sig.c 6.16

diff --git a/usr/src/sys/kern/kern_sig.c b/usr/src/sys/kern/kern_sig.c
index 22c6715..20f9cbf 100644 (file)
--- a/usr/src/sys/kern/kern_sig.c
+++ b/usr/src/sys/kern/kern_sig.c
@@ -1,4 +1,4 @@
-/*     kern_sig.c      6.15    85/05/22        */
+/*     kern_sig.c      6.16    85/05/22        */

 
 #include "../machine/reg.h"
 #include "../machine/pte.h"
 
 #include "../machine/reg.h"
 #include "../machine/pte.h"


@@ -760,6 +760,8 @@ core()
        if (ctob(UPAGES+u.u_dsize+u.u_ssize) >=
            u.u_rlimit[RLIMIT_CORE].rlim_cur)
                return (0);
        if (ctob(UPAGES+u.u_dsize+u.u_ssize) >=
            u.u_rlimit[RLIMIT_CORE].rlim_cur)
                return (0);

+       if (u.u_procp->p_textp && access(u.u_procp->p_textp->x_iptr, IREAD))
+               return (0);

        u.u_error = 0;
        ndp->ni_nameiop = CREATE | FOLLOW;
        ndp->ni_segflg = UIO_SYSSPACE;
        u.u_error = 0;
        ndp->ni_nameiop = CREATE | FOLLOW;
        ndp->ni_segflg = UIO_SYSSPACE;