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| author | Tomas Bortoli <tomasbortoli@gmail.com> | 2019-07-31 10:54:47 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-16 10:12:51 +0200 |
| commit | cab569a44a524709d95bbd88700860ac45e5d5cf (patch) | |
| tree | c273c98a7de3fe84d88c7e0217b56d093dbbbba5 | |
| parent | d4d904e4e258e1e5c794af3e702d6f6ecc8fd56d (diff) | |
| download | linux-cab569a44a524709d95bbd88700860ac45e5d5cf.tar.gz linux-cab569a44a524709d95bbd88700860ac45e5d5cf.tar.bz2 linux-cab569a44a524709d95bbd88700860ac45e5d5cf.zip | |
can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices
commit ead16e53c2f0ed946d82d4037c630e2f60f4ab69 upstream.
Uninitialized Kernel memory can leak to USB devices.
Fix by using kzalloc() instead of kmalloc() on the affected buffers.
Signed-off-by: Tomas Bortoli <tomasbortoli@gmail.com>
Reported-by: syzbot+d6a5a1a3657b596ef132@syzkaller.appspotmail.com
Fixes: f14e22435a27 ("net: can: peak_usb: Do not do dma on the stack")
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/can/usb/peak_usb/pcan_usb_pro.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index d516def846ab..b304198f0b3a 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -502,7 +502,7 @@ static int pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded) u8 *buffer; int err; - buffer = kmalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL); + buffer = kzalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL); if (!buffer) return -ENOMEM; |