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HID: debug: check length before copy_to_user()
authorDaniel Rosenberg <drosen@google.com>
Mon, 2 Jul 2018 23:59:37 +0000 (16:59 -0700)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 3 Oct 2018 03:10:08 +0000 (04:10 +0100)
commite44ab03f41ba55e181f4ed64e546feac8f8e69dc
tree2af7fe31500a41d8fe364203c71bdfc72e334a17tree | snapshot
parent3141e0750231be243bd4cd0fa6eebeb6a1578537commit | diff
HID: debug: check length before copy_to_user()

commit 717adfdaf14704fd3ec7fa2c04520c0723247eac upstream.

If our length is greater than the size of the buffer, we
overflow the buffer

Signed-off-by: Daniel Rosenberg <drosen@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/hid/hid-debug.c diff | blob | history
Linux kernels and configurations used by Zygo.