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authorJiri Kosina <jkosina@suse.cz>2014-08-21 18:57:48 +0400
committerJiri Kosina <jkosina@suse.cz>2014-08-21 19:43:28 +0400
commit4ab25786c87eb20857bbb715c3ae34ec8fd6a214 (patch)
treea1f0b37bd3f77e369398df733e76c222f0a8f86d /drivers/hid/hid-petalynx.c
parentad3e14d7c5268c2e24477c6ef54bbdf88add5d36 (diff)
downloadlinux-4ab25786c87eb20857bbb715c3ae34ec8fd6a214.tar.xz
HID: fix a couple of off-by-ones
There are a few very theoretical off-by-one bugs in report descriptor size checking when performing a pre-parsing fixup. Fix those. Cc: stable@vger.kernel.org Reported-by: Ben Hawkes <hawkes@google.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-petalynx.c')
-rw-r--r--drivers/hid/hid-petalynx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hid/hid-petalynx.c b/drivers/hid/hid-petalynx.c
index 736b2502df4f..6aca4f2554bf 100644
--- a/drivers/hid/hid-petalynx.c
+++ b/drivers/hid/hid-petalynx.c
@@ -25,7 +25,7 @@
static __u8 *pl_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
- if (*rsize >= 60 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
+ if (*rsize >= 62 && rdesc[39] == 0x2a && rdesc[40] == 0xf5 &&
rdesc[41] == 0x00 && rdesc[59] == 0x26 &&
rdesc[60] == 0xf9 && rdesc[61] == 0x00) {
hid_info(hdev, "fixing up Petalynx Maxter Remote report descriptor\n");