3.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kees Cook <keescook@xxxxxxxxxxxx>
commit 41df7f6d43723deb7364340b44bc5d94bf717456 upstream.
A HID device could send a malicious output report that would cause the
steelseries HID driver to write beyond the output report allocation
during initialization, causing a heap overflow:
[ 167.981534] usb 1-1: New USB device found, idVendor=1038, idProduct=1410
...
[ 182.050547] BUG kmalloc-256 (Tainted: G W ): Redzone overwritten
CVE-2013-2891
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-steelseries.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -249,6 +249,11 @@ static int steelseries_srws1_probe(struc
goto err_free;
}
+ if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 16)) {
+ ret = -ENODEV;
+ goto err_free;
+ }
+
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
--
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