Commit 452e8bed authored by Lee Jones's avatar Lee Jones Committed by sanglipeng
Browse files

HID: uhid: Over-ride the default maximum data buffer value with our own 

stable inclusion
from stable-v5.10.176
commit e57f797e3ffafb09eafb9be69d065d1e0331da61
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I87BGI

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e57f797e3ffafb09eafb9be69d065d1e0331da61



--------------------------------

commit 1c5d4221 upstream.

The default maximum data buffer size for this interface is UHID_DATA_MAX
(4k).  When data buffers are being processed, ensure this value is used
when ensuring the sanity, rather than a value between the user provided
value and HID_MAX_BUFFER_SIZE (16k).

Signed-off-by: default avatarLee Jones <lee@kernel.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarLee Jones <lee@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent dd535d6d

drivers/hid/uhid.c

+1 −0
Original line number Diff line number Diff line
@@ -395,6 +395,7 @@ struct hid_ll_driver uhid_hid_driver = { 
	.parse = uhid_hid_parse,

	.raw_request = uhid_hid_raw_request,

	.output_report = uhid_hid_output_report,

	.max_buffer_size = UHID_DATA_MAX,

};

EXPORT_SYMBOL_GPL(uhid_hid_driver);