diff options
| author | Vasiliy Kulikov <segooon@gmail.com> | 2010-10-17 18:41:24 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-21 12:43:29 -0700 |
| commit | 8e1eb27c298533705a1561d4ea4dec31e80407b2 (patch) | |
| tree | 3ed3ffc0b30c6b57ad2d0074ace0fe32cfd99a7e /drivers/char | |
| parent | 824737ff1ea5a699b7122862e2698bbf14bc601c (diff) | |
pcmcia: synclink_cs: fix information leak to userland
commit 5b917a1420d3d1a9c8da49fb0090692dc9aaee86 upstream.
Structure new_line is copied to userland with some padding fields unitialized.
It leads to leaking of stack memory.
Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/pcmcia/synclink_cs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index c31a0d913d37..11655032c72e 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -4144,6 +4144,8 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (cmd != SIOCWANDEV) return hdlc_ioctl(dev, ifr, cmd); + memset(&new_line, 0, size); + switch(ifr->ifr_settings.type) { case IF_GET_IFACE: /* return current sync_serial_settings */ |