Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.18.21 2021-05-27T11:46:21+00:00 2021-05-27T11:46:21+00:00 Alan Stern stern@rowland.harvard.edu 2021-05-26T15:32:44+00:00 urn:sha1:7652dd2c5cb7b656471cc801d619fe24120643a3 A type of inconsistency that can show up in control URBs is when the setup packet's wLength value does not match the URB's transfer_buffer_length field. The two should always be equal; differences could lead to information leaks or undefined behavior for OUT transfers or overruns for IN transfers. This patch adds a test for such mismatches during URB submission. If the test fails, the submission is rejected with a -EBADR error code (which is not used elsewhere in the USB core), and a debugging message is logged for people interested in tracking down these errors. Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20210526153244.GA1400430@rowland.harvard.edu Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2017-04-11T20:41:29+00:00 Mauro Carvalho Chehab mchehab@s-opensource.com 2017-04-05T13:23:15+00:00 urn:sha1:e1c3e6e1ca996e0403a5958c054d2cebf1642b15 As some USB documentation files got moved, adjust their cross-references to their new place. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2017-04-11T20:39:49+00:00 Mauro Carvalho Chehab mchehab@s-opensource.com 2017-04-05T13:23:07+00:00 urn:sha1:360a7b5f57e7734d34bc37574822ce74c5ba5d25 This document describe some USB core features. Add it to the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>