[PATCH 05/24] Staging: hv: mousevsc: Handle the case where we may get bogus report desc size
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: 2011-09-30 01:21:30
Also in:
lkml
Subsystem:
staging subsystem, the rest · Maintainers:
Greg Kroah-Hartman, Linus Torvalds
Handle the case where we may get bogus report desc size from the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> --- drivers/staging/hv/hv_mouse.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index b7cc164..19cfc23 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c@@ -341,6 +341,8 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device, /* Save the report desc */ input_device->report_desc_size = desc->desc[0].wDescriptorLength; + if (input_device->report_desc_size == 0) + goto cleanup; input_device->report_desc = kzalloc(input_device->report_desc_size, GFP_ATOMIC);
--
1.7.4.1