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HID: fix overrun in quirks initialization

Check whether index is within bounds before testing the element.

declared in drivers/hid/usbhid/hid-core.c:62:
static char *quirks_param[MAX_USBHID_BOOT_QUIRKS] = ...

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Roel Kluin 16 年之前
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共有 1 个文件被更改,包括 1 次插入1 次删除
  1. 1 1
      drivers/hid/usbhid/hid-quirks.c

+ 1 - 1
drivers/hid/usbhid/hid-quirks.c

@@ -201,7 +201,7 @@ int usbhid_quirks_init(char **quirks_param)
 	u32 quirks;
 	int n = 0, m;
 
-	for (; quirks_param[n] && n < MAX_USBHID_BOOT_QUIRKS; n++) {
+	for (; n < MAX_USBHID_BOOT_QUIRKS && quirks_param[n]; n++) {
 
 		m = sscanf(quirks_param[n], "0x%hx:0x%hx:0x%x",
 				&idVendor, &idProduct, &quirks);