diff options
| author | Dan Carpenter | 2010-09-04 08:38:59 +0000 |
|---|---|---|
| committer | David S. Miller | 2010-09-06 18:29:18 -0700 |
| commit | 017d79ef0073fdb170dcf185dc4c2456a304d659 (patch) | |
| tree | 6a1b6cadc0f43745a60840910c5e52d9d993ad9e /drivers/isdn/divert | |
| parent | ca1cef3a3a8af961f504abfcf9e13dac088e1ad1 (diff) | |
isdn: potential buffer overflows
cs->ics.parm.setup.phone is a 32 character array. In each of these
cases we're copying from a 35 character array into a 32 character array
so we should use strlcpy() instead of strcpy().
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/divert')
| -rw-r--r-- | drivers/isdn/divert/isdn_divert.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/isdn/divert/isdn_divert.c b/drivers/isdn/divert/isdn_divert.c index 70cf6bac7a5a..48e6d220f62c 100644 --- a/drivers/isdn/divert/isdn_divert.c +++ b/drivers/isdn/divert/isdn_divert.c @@ -77,7 +77,7 @@ static void deflect_timer_expire(ulong arg) case DEFLECT_ALERT: cs->ics.command = ISDN_CMD_REDIR; /* protocol */ - strcpy(cs->ics.parm.setup.phone,cs->deflect_dest); + strlcpy(cs->ics.parm.setup.phone, cs->deflect_dest, sizeof(cs->ics.parm.setup.phone)); strcpy(cs->ics.parm.setup.eazmsn,"Testtext delayed"); divert_if.ll_cmd(&cs->ics); spin_lock_irqsave(&divert_lock, flags); @@ -251,7 +251,7 @@ int deflect_extern_action(u_char cmd, ulong callid, char *to_nr) case 2: /* redir */ del_timer(&cs->timer); - strcpy(cs->ics.parm.setup.phone, to_nr); + strlcpy(cs->ics.parm.setup.phone, to_nr, sizeof(cs->ics.parm.setup.phone)); strcpy(cs->ics.parm.setup.eazmsn, "Testtext manual"); ic.command = ISDN_CMD_REDIR; if ((i = divert_if.ll_cmd(&ic))) @@ -480,7 +480,7 @@ static int isdn_divert_icall(isdn_ctrl *ic) if (!cs->timer.expires) { strcpy(ic->parm.setup.eazmsn,"Testtext direct"); ic->parm.setup.screen = dv->rule.screen; - strcpy(ic->parm.setup.phone,dv->rule.to_nr); + strlcpy(ic->parm.setup.phone, dv->rule.to_nr, sizeof(ic->parm.setup.phone)); cs->akt_state = DEFLECT_AUTODEL; /* delete after timeout */ cs->timer.expires = jiffies + (HZ * AUTODEL_TIME); retval = 5; |