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Stefan Eichenberger f7e2ded996 usb: core: fix pipe creation for get_bMaxPacketSize0 
commit 4aac0db5a0 upstream.

When usb_control_msg is used in the get_bMaxPacketSize0 function, the
USB pipe does not include the endpoint device number. This can cause
failures when a usb hub port is reinitialized after encountering a bad
cable connection. As a result, the system logs the following error
messages:
usb usb2-port1: cannot reset (err = -32)
usb usb2-port1: Cannot enable. Maybe the USB cable is bad?
usb usb2-port1: attempt power cycle
usb 2-1: new high-speed USB device number 5 using ci_hdrc
usb 2-1: device descriptor read/8, error -71

The problem began after commit 85d07c5562 ("USB: core: Unite old
scheme and new scheme descriptor reads"). There
usb_get_device_descriptor was replaced with get_bMaxPacketSize0. Unlike
usb_get_device_descriptor, the get_bMaxPacketSize0 function uses the
macro usb_rcvaddr0pipe, which does not include the endpoint device
number. usb_get_device_descriptor, on the other hand, used the macro
usb_rcvctrlpipe, which includes the endpoint device number.

By modifying the get_bMaxPacketSize0 function to use usb_rcvctrlpipe
instead of usb_rcvaddr0pipe, the issue can be resolved. This change will
ensure that the endpoint device number is included in the USB pipe,
preventing reinitialization failures. If the endpoint has not set the
device number yet, it will still work because the device number is 0 in
udev.

Cc: stable <stable@kernel.org>
Fixes: 85d07c5562 ("USB: core: Unite old scheme and new scheme descriptor reads")
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20250203105840.17539-1-eichest@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-02-21 13:50:02 +01:00
arch perf/x86/intel: Ensure LBRs are disabled when a CPU is starting 2025-02-21 13:50:01 +01:00
block block: don't revert iter for -EIOCBQUEUED 2025-02-21 13:49:45 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: api - Add crypto_clone_tfm 2024-12-14 19:53:51 +01:00
Documentation kconfig: add warn-unknown-symbols sanity check 2025-02-21 13:49:24 +01:00
drivers usb: core: fix pipe creation for get_bMaxPacketSize0 2025-02-21 13:50:02 +01:00
fs orangefs: fix a oob in orangefs_debug_write 2025-02-21 13:50:00 +01:00
include vrf: use RCU protection in l3mdev_l3_out() 2025-02-21 13:49:56 +01:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:53:14 +01:00
io_uring io_uring/rw: commit provided buffer state on async 2025-02-21 13:49:53 +01:00
ipc ipc: fix memleak if msg_init_ns failed in create_ipc_ns 2024-12-14 19:54:06 +01:00
kernel cgroup: Remove steal time from usage_usec 2025-02-21 13:49:57 +01:00
lib maple_tree: simplify split calculation 2025-02-21 13:49:55 +01:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: kmemleak: fix upper boundary check for physical address objects 2025-02-21 13:49:49 +01:00
net batman-adv: Drop unmanaged ELP metric worker 2025-02-21 13:50:00 +01:00
rust rust: macros: provide correct provenance when constructing THIS_MODULE 2024-10-17 15:22:24 +02:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-02-21 13:49:03 +01:00
scripts kbuild: Move -Wenum-enum-conversion to W=2 2025-02-21 13:49:46 +01:00
security tomoyo: don't emit warning in tomoyo_write_control() 2025-02-21 13:49:31 +01:00
sound ASoC: Intel: bytcr_rt5640: Add DMI quirk for Vexia Edu Atla 10 tablet 5V 2025-02-21 13:50:00 +01:00
tools selftests: gpio: gpio-sim: Fix missing chip disablements 2025-02-21 13:50:00 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:46:21 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:21:15 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: add leah to 6.1 MAINTAINERS file 2024-05-17 11:56:16 +02:00
Makefile kbuild: switch from lz4c to lz4 for compression 2025-02-21 13:49:25 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.