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HID: hidraw, fix a NULL pointer dereference in hidraw_write
[pandora-kernel.git]
/
drivers
/
hid
/
hidraw.c
diff --git
a/drivers/hid/hidraw.c
b/drivers/hid/hidraw.c
index
9eaf6ae
..
a3866b5
100644
(file)
--- a/
drivers/hid/hidraw.c
+++ b/
drivers/hid/hidraw.c
@@
-109,6
+109,12
@@
static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
int ret = 0;
mutex_lock(&minors_lock);
+
+ if (!hidraw_table[minor]) {
+ ret = -ENODEV;
+ goto out;
+ }
+
dev = hidraw_table[minor]->hid;
if (!dev->hid_output_raw_report) {