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authorDave Airlie <airlied@redhat.com>2022-02-14 10:52:27 +1000
committerDave Airlie <airlied@redhat.com>2022-02-14 10:52:27 +1000
commitb9c7babe2c2e37a50aa42401b38d597ea78f506e (patch)
treedd6ec30f2583f8860e69a74e4779ac20e3f53bff /drivers/usb/gadget/function/rndis.c
parent123db17ddff007080d464e785689fb14f94cbc7a (diff)
parent754e0b0e35608ed5206d6a67a791563c631cec07 (diff)
Backmerge tag 'v5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Daniel asked for this for some intel deps, so let's do it now. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/usb/gadget/function/rndis.c')
-rw-r--r--drivers/usb/gadget/function/rndis.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index 431d5a7d737e..b7ccf1803656 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -637,14 +637,17 @@ static int rndis_set_response(struct rndis_params *params,
rndis_set_cmplt_type *resp;
rndis_resp_t *r;
+ BufLength = le32_to_cpu(buf->InformationBufferLength);
+ BufOffset = le32_to_cpu(buf->InformationBufferOffset);
+ if ((BufLength > RNDIS_MAX_TOTAL_SIZE) ||
+ (BufOffset + 8 >= RNDIS_MAX_TOTAL_SIZE))
+ return -EINVAL;
+
r = rndis_add_response(params, sizeof(rndis_set_cmplt_type));
if (!r)
return -ENOMEM;
resp = (rndis_set_cmplt_type *)r->buf;
- BufLength = le32_to_cpu(buf->InformationBufferLength);
- BufOffset = le32_to_cpu(buf->InformationBufferOffset);
-
#ifdef VERBOSE_DEBUG
pr_debug("%s: Length: %d\n", __func__, BufLength);
pr_debug("%s: Offset: %d\n", __func__, BufOffset);