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| author | Shaun Tancheff <shaun@tancheff.com> | 2006-02-22 19:47:19 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-02-28 12:42:06 -0800 |
| commit | 8763716bfe4d8a16bef28c9947cf9d799b1796a5 (patch) | |
| tree | f0e8d0dcbf55953ea084f110c013743716b2a068 /drivers/usb/gadget/rndis.c | |
| parent | d5ec33490c67affef93aebf76e1238260c82d377 (diff) | |
| download | blackbird-obmc-linux-8763716bfe4d8a16bef28c9947cf9d799b1796a5.tar.gz blackbird-obmc-linux-8763716bfe4d8a16bef28c9947cf9d799b1796a5.zip | |
[PATCH] USB: Gadget RNDIS fix alloc bug. (buffer overflow)
Remote NDIS response to OID_GEN_SUPPORTED_LIST only allocated space
for the data attached to the reply, and not the reply structure
itself. This caused other kmalloc'd memory to be corrupted.
Signed-off-by: Shaun Tancheff <shaun@tancheff.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/rndis.c')
| -rw-r--r-- | drivers/usb/gadget/rndis.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 9689efeb364c..6d6eaad73968 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -853,11 +853,14 @@ static int rndis_query_response (int configNr, rndis_query_msg_type *buf) // DEBUG("%s: OID = %08X\n", __FUNCTION__, cpu_to_le32(buf->OID)); if (!rndis_per_dev_params [configNr].dev) return -ENOTSUPP; - /* - * we need more memory: - * oid_supported_list is the largest answer + /* + * we need more memory: + * gen_ndis_query_resp expects enough space for + * rndis_query_cmplt_type followed by data. + * oid_supported_list is the largest data reply */ - r = rndis_add_response (configNr, sizeof (oid_supported_list)); + r = rndis_add_response (configNr, + sizeof (oid_supported_list) + sizeof(rndis_query_cmplt_type)); if (!r) return -ENOMEM; resp = (rndis_query_cmplt_type *) r->buf; |
