3.11.10.8 -stable review patch. If anyone has any objections, please let me know.
------------------ From: =?UTF-8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= commit 77bc6bed7121936bb2e019a8c336075f4c8eef62 upstream. Return -EINVAL unless all of user-given strings are correctly NUL-terminated. Signed-off-by: YOSHIFUJI Hideaki <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/isdn/isdnloop/isdnloop.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c index 02125e6..e1f8748 100644 --- a/drivers/isdn/isdnloop/isdnloop.c +++ b/drivers/isdn/isdnloop/isdnloop.c @@ -1070,6 +1070,12 @@ isdnloop_start(isdnloop_card *card, isdnloop_sdef *sdefp) return -EBUSY; if (copy_from_user((char *) &sdef, (char *) sdefp, sizeof(sdef))) return -EFAULT; + + for (i = 0; i < 3; i++) { + if (!memchr(sdef.num[i], 0, sizeof(sdef.num[i]))) + return -EINVAL; + } + spin_lock_irqsave(&card->isdnloop_lock, flags); switch (sdef.ptype) { case ISDN_PTYPE_EURO: -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
