Commit 7365abba authored Mar 22, 2016 by Andy Lutomirski Committed by Linus Torvalds Mar 22, 2016

drivers/hid/uhid.c: check write() bitness using in_compat_syscall



uhid changes the format expected in write() depending on bitness.  It
should check the syscall bitness directly.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: David Herrmann <dh.herrmann@googlemail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent f4056b52

drivers/hid/uhid.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -384,7 +384,7 @@ struct uhid_create_req_compat {
		static int uhid_event_from_user(const char __user *buffer, size_t len,
		struct uhid_event *event)
		{
		if (is_compat_task()) {
		if (in_compat_syscall()) {
		u32 type;

		if (get_user(type, buffer))

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