d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Temporary plug CLOCAL security hole, while sticky bits

Browse Source 
yet not implemented. Only for bidirectional case.
This commit is contained in:
Andrey A. Chernov 1994-01-02 10:17:29 +00:00
parent 528cd70738
commit 879d1ff90a
3 changed files with 33 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/dev/sio/sio.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.19 1993/12/13 13:20:50 davidg Exp $
* $Id: sio.c,v 1.20 1993/12/16 04:38:27 ache Exp $
*/
#include "sio.h"
@ -1034,6 +1034,16 @@ sioioctl(dev, cmd, data, flag, p)
iobase = com->iobase;
s = spltty();
#ifdef COM_BIDIR
/* XXX: plug security hole while stucky bits not yet implemented */
if (com->bidir && com->active_in && p->p_ucred->cr_uid != 0) {
tp->t_cflag |= HUPCL;
tp->t_cflag &= ~CLOCAL;
}
#endif
switch (cmd) {
case TIOCSBRK:
outb(iobase + com_cfcr, com->cfcr_image |= CFCR_SBREAK);

12
sys/i386/isa/sio.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.19 1993/12/13 13:20:50 davidg Exp $
* $Id: sio.c,v 1.20 1993/12/16 04:38:27 ache Exp $
*/
#include "sio.h"
@ -1034,6 +1034,16 @@ sioioctl(dev, cmd, data, flag, p)
iobase = com->iobase;
s = spltty();
#ifdef COM_BIDIR
/* XXX: plug security hole while stucky bits not yet implemented */
if (com->bidir && com->active_in && p->p_ucred->cr_uid != 0) {
tp->t_cflag |= HUPCL;
tp->t_cflag &= ~CLOCAL;
}
#endif
switch (cmd) {
case TIOCSBRK:
outb(iobase + com_cfcr, com->cfcr_image |= CFCR_SBREAK);

12
sys/isa/sio.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.19 1993/12/13 13:20:50 davidg Exp $
* $Id: sio.c,v 1.20 1993/12/16 04:38:27 ache Exp $
*/
#include "sio.h"
@ -1034,6 +1034,16 @@ sioioctl(dev, cmd, data, flag, p)
iobase = com->iobase;
s = spltty();
#ifdef COM_BIDIR
/* XXX: plug security hole while stucky bits not yet implemented */
if (com->bidir && com->active_in && p->p_ucred->cr_uid != 0) {
tp->t_cflag |= HUPCL;
tp->t_cflag &= ~CLOCAL;
}
#endif
switch (cmd) {
case TIOCSBRK:
outb(iobase + com_cfcr, com->cfcr_image |= CFCR_SBREAK);