diff options
| author |   Salva Peiró <speiro@ai2.upv.es> | 2013-12-17 10:06:30 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-12-19 15:09:38 -0500 |
| commit | 8e3fbf870481eb53b2d3a322d1fc395ad8b367ed (patch) | |
| tree | eaad28ff58992b67a2095cbd41d6fff46f1a1b82 /drivers/net/hamradio/yam.c | |
| parent | drivers/net/hamradio: Integer overflow in hdlcdrv_ioctl() (diff) | |
| download | linux-dev-8e3fbf870481eb53b2d3a322d1fc395ad8b367ed.tar.xz linux-dev-8e3fbf870481eb53b2d3a322d1fc395ad8b367ed.zip | |
hamradio/yam: fix info leak in ioctl
The yam_ioctl() code fails to initialise the cmd field
of the struct yamdrv_ioctl_cfg. Add an explicit memset(0)
before filling the structure to avoid the 4-byte info leak.
Signed-off-by: Salva Peiró <speiro@ai2.upv.es>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/hamradio/yam.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 1971411574db..61dd2447e1bb 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -1057,6 +1057,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) break; case SIOCYAMGCFG: + memset(&yi, 0, sizeof(yi)); yi.cfg.mask = 0xffffffff; yi.cfg.iobase = yp->iobase; yi.cfg.irq = yp->irq; |