Commit 177f25d1 authored by Jiri Kosina's avatar Jiri Kosina
Browse files

HID: core: zero-initialize the report buffer 



Since the report buffer is used by all kinds of drivers in various ways, let's
zero-initialize it during allocation to make sure that it can't be ever used
to leak kernel memory via specially-crafted report.

Fixes: 27ce4050 ("HID: fix data access in implement()")
Reported-by: default avatarBenoît Sevens <bsevens@google.com>
Acked-by: default avatarBenjamin Tissoires <bentiss@kernel.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent 51268879

drivers/hid/hid-core.c

+1 −1
Original line number Diff line number Diff line
@@ -1875,7 +1875,7 @@ u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags) 


	u32 len = hid_report_len(report) + 7;



	return kmalloc(len, flags);

	return kzalloc(len, flags);

}

EXPORT_SYMBOL_GPL(hid_alloc_report_buf);