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40 hoursMerge tag 'usb-6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt driver changes for 6.17-rc1. Lots of little things in here, mostly all small cleanups and updates, no major new features this development cycle. Stuff included in here is: - xhci minor tweaks for error handling - typec minor updates and a driver update - gadget driver api cleanups - unused function removals - unbind memory leak fixes - a few new device ids added - a few new devices supported for some drivers - other minor cleanups and changes All of these have been in linux-next with no reported issues, with the leak fixes being in the shortest amount of time, but they are 'obviously correct' :)" * tag 'usb-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (100 commits) usb: musb: omap2430: clean up probe error handling usb: musb: omap2430: fix device leak at unbind usb: gadget: udc: renesas_usb3: fix device leak at unbind usb: dwc3: meson-g12a: fix device leaks at unbind usb: dwc3: imx8mp: fix device leak at unbind usb: musb: omap2430: enable compile testing usb: gadget: udc: renesas_usb3: drop unused module alias usb: xhci: print xhci->xhc_state when queue_command failed usb: atm: cxacru: Merge cxacru_upload_firmware() into cxacru_heavy_init() USB: serial: option: add Foxconn T99W709 usb: core: add urb->sgt parameter description thunderbolt: Fix copy+paste error in match_service_id() usb: typec: ucsi: Update power_supply on power role change usb: typec: ucsi: psy: Set current max to 100mA for BC 1.2 and Default usb: typec: fusb302: cache PD RX state usb: typec: ucsi: yoga-c630: add DRM dependency usb: gadget : fix use-after-free in composite_dev_cleanup() usb: chipidea: imx: Add a missing blank line usb: gadget: f_uac1: replace scnprintf() with sysfs_emit() usb: usblp: clean up assignment inside if conditions ...
2 daysMerge tag 'gpio-updates-for-v6.17-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "There's one new driver (Apple SMC) and extensions to existing drivers for supporting new HW models. A lot of different impovements across drivers and in core GPIO code. Details on that are in the signed tag as usual. We managed to remove some of the legacy APIs. Arnd Bergmann started to work on making the legacy bits optional so that we may compile them only for older platforms that still really need them. Rob Herring has done a lot of work to convert legacy .txt dt-bindings for GPIO controllers to YAML. There are only a few left now in the GPIO tree. A big part of the commits in this PR concern the conversion of GPIO drivers to using the new line value setter callbacks. This conversion is now complete treewide (unless I've missed something) and once all the changes from different trees land in mainline, I'll send you another PR containing a commit dropping the legacy callbacks from the tree. As the quest to pay back technical dept never really ends, we're starting another set of interface conversions, this time it's about moving fields specific to only a handful of drivers using the gpio-mmio helper out of the core gpio_chip structure that every controller implements and uses. This cycle we introduce a new set of APIs and convert a few drivers under drivers/gpio/, next cycle we'll convert remaining modules treewide (in gpio, pinctrl and mfd trees) and finally remove the old interfaces and move the gpio-mmio fields into their own structure wrapping gpio_chip. One last change I should mention here is the rework of the sysfs interface. In 2016, we introduced the GPIO character device as the preferred alternative to the sysfs class under /sys/class/gpio. While it has seen a wide adoption with the help of its user-space counterpart - libgpiod - there are still users who prefer the simplicity of sysfs. As far as the GPIO subsystem is concerned, the problem is not the existince of the GPIO class as such but rather the fact that it exposes the global GPIO numbers to the user-space, stopping us from ever being able to remove the numberspace from the kernel. To that end, this release we introduced a parallel, limited sysfs interface that doesn't expose these numbers and only implements a subset of features that are relevant to the existing users. This is a result of several discussions over the course of last year and should allow us to remove the legacy part some time in the future. Summary: GPIOLIB core: - introduce a parallel, limited sysfs user ABI that doesn't expose the global GPIO numbers to user-space while maintaining backward compatibility with the end goal of it completely replacing the existing interface, allowing us to remove it - remove the legacy devm_gpio_request() routine which has no more users - start the process of allowing to compile-out the legacy parts of the GPIO core for users who don't need it by introducing a new Kconfig option: GPIOLIB_LEGACY - don't use global GPIO numbers in debugfs output from the core code (drivers still do it, the work is ongoing) - start the process of moving the fields specific to the gpio-mmio helper out of the core struct gpio_chip into their own structure that wraps it: create a new header with modern interfaces and convert several drivers to using it - remove the platform data structure associated with the gpio-mmio helper from the kernel after having converted all remaining users to generic device properties - remove legacy struct gpio definition as it has no more users New drivers: - add the GPIO driver for the Apple System Management Controller Driver improvements: - add support for new models to gpio-adp5585, gpio-tps65219 and gpio-pca953x - extend the interrupt support in gpio-loongson-64bit - allow to mark the simulated GPIO lines as invalid in gpio-sim - convert all remaining GPIO drivers to using the new GPIO value setter callbacks - convert gpio-rcar to using simple device power management ops callbacks - don't check if current direction of a line is output before setting the value in gpio-pisosr and ti-fpc202: the GPIO core already handles that - also drop unneeded GPIO range checks in drivers, the core already makes sure we're within bounds when calling driver callbacks - use dev_fwnode() where applicable across GPIO drivers - set line value in gpio-zynqmp-modepin and gpio-twl6040 when the user wants to change direction of the pin to output even though these drivers don't need to do anything else to actually set the direction, otherwise a call like gpiod_direction_output(d, 1) will not result in the line driver high - remove the reduntant call to pm_runtime_mark_last_busy() from gpio-arizona - use lock guards in gpio-cadence and gpio-mxc - check the return values of regmap functions in gpio-wcd934x and gpio-tps65912 - use better regmap interfaces in gpio-wcove and gpio-pca953x - remove dummy GPIO chip callbacks from several drivers in cases where the GPIO core can already handle their absence - allow building gpio-palmas as a module Fixes: - use correct bit widths (according to the documentation) in gpio-virtio Device-tree bindings: - convert several of the legacy .txt documents for many different devices to YAML, improving automatic validation - create a "trivial" GPIO DT schema that covers a wide range of simple hardware that share a set of basic GPIO properties - document new HW: Apple MAC SMC GPIO block and adp5589 I/O expander - document a new model for pca95xx - add and/or remove properties in YAML documents for gpio-rockchip, fsl,qoriq-gpio, arm,pl061 and gpio-xilinx Misc: - some minor refactoring in several places, adding/removing forward declarations, moving defines to better places, constify the arguments in some functions, remove duplicate includes, etc. - documentation updates" * tag 'gpio-updates-for-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (202 commits) MIPS: alchemy: gpio: use new GPIO line value setter callbacks for the remaining chips gpiolib: enable CONFIG_GPIOLIB_LEGACY even for !GPIOLIB gpio: virtio: Fix config space reading. gpiolib: make legacy interfaces optional dt-bindings: gpio: rockchip: Allow use of a power-domain gpiolib: of: add forward declaration for struct device_node power: reset: macsmc-reboot: Add driver for rebooting via Apple SMC gpio: Add new gpio-macsmc driver for Apple Macs mfd: Add Apple Silicon System Management Controller soc: apple: rtkit: Make shmem_destroy optional dt-bindings: mfd: Add Apple Mac System Management Controller dt-bindings: power: reboot: Add Apple Mac SMC Reboot Controller dt-bindings: gpio: Add Apple Mac SMC GPIO block gpio: cadence: Remove duplicated include in gpio-cadence.c gpio: tps65219: Add support for TI TPS65214 PMIC gpio: tps65219: Update _IDX & _OFFSET macro prefix gpio: sysfs: Fix an end of loop test in gpiod_unexport() dt-bindings: gpio: Convert qca,ar7100-gpio to DT schema dt-bindings: gpio: Convert maxim,max3191x to DT schema dt-bindings: gpio: fsl,qoriq-gpio: Add missing mpc8xxx compatibles ...
3 daysMerge tag 'pull-simple_recursive_removal' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull simple_recursive_removal() update from Al Viro: "Removing subtrees of kernel filesystems is done in quite a few places; unfortunately, it's easy to get wrong. A number of open-coded attempts are out there, with varying amount of bogosities. simple_recursive_removal() had been introduced for doing that with all precautions needed; it does an equivalent of rm -rf, with sufficient locking, eviction of anything mounted on top of the subtree, etc. This series converts a bunch of open-coded instances to using that" * tag 'pull-simple_recursive_removal' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: functionfs, gadgetfs: use simple_recursive_removal() kill binderfs_remove_file() fuse_ctl: use simple_recursive_removal() pstore: switch to locked_recursive_removal() binfmt_misc: switch to locked_recursive_removal() spufs: switch to locked_recursive_removal() add locked_recursive_removal() better lockdep annotations for simple_recursive_removal() simple_recursive_removal(): saner interaction with fsnotify
6 daysusb: gadget: udc: renesas_usb3: fix device leak at unbindJohan Hovold
Make sure to drop the reference to the companion device taken during probe when the driver is unbound. Fixes: 39facfa01c9f ("usb: gadget: udc: renesas_usb3: Add register of usb role switch") Cc: stable@vger.kernel.org # 4.19 Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724091910.21092-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 daysusb: gadget: udc: renesas_usb3: drop unused module aliasJohan Hovold
Since commit f3323cd03e58 ("usb: gadget: udc: renesas_usb3: remove R-Car H3 ES1.* handling") the driver only supports OF probe so drop the unused platform module alias. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20250724092006.21216-1-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 daysusb: gadget : fix use-after-free in composite_dev_cleanup()Tao Xue
1. In func configfs_composite_bind() -> composite_os_desc_req_prepare(): if kmalloc fails, the pointer cdev->os_desc_req will be freed but not set to NULL. Then it will return a failure to the upper-level function. 2. in func configfs_composite_bind() -> composite_dev_cleanup(): it will checks whether cdev->os_desc_req is NULL. If it is not NULL, it will attempt to use it.This will lead to a use-after-free issue. BUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0 Read of size 8 at addr 0000004827837a00 by task init/1 CPU: 10 PID: 1 Comm: init Tainted: G O 5.10.97-oh #1 kasan_report+0x188/0x1cc __asan_load8+0xb4/0xbc composite_dev_cleanup+0xf4/0x2c0 configfs_composite_bind+0x210/0x7ac udc_bind_to_driver+0xb4/0x1ec usb_gadget_probe_driver+0xec/0x21c gadget_dev_desc_UDC_store+0x264/0x27c Fixes: 37a3a533429e ("usb: gadget: OS Feature Descriptors support") Cc: stable <stable@kernel.org> Signed-off-by: Tao Xue <xuetao09@huawei.com> Link: https://lore.kernel.org/r/20250721093908.14967-1-xuetao09@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 daysusb: gadget: f_uac1: replace scnprintf() with sysfs_emit()Sumanth Gavini
Documentation/filesystems/sysfs.rst mentions that show() should only use sysfs_emit() or sysfs_emit_at() when formating the value to be returned to user space. So replace scnprintf() with sysfs_emit(). Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Link: https://lore.kernel.org/r/20250718175037.299710-1-sumanth.gavini@yahoo.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 daysusb: gadget: uvc: Initialize frame-based format color matching descriptorAkash Kumar
Fix NULL pointer crash in uvcg_framebased_make due to uninitialized color matching descriptor for frame-based format which was added in commit f5e7bdd34aca ("usb: gadget: uvc: Allow creating new color matching descriptors") that added handling for uncompressed and mjpeg format. Crash is seen when userspace configuration (via configfs) does not explicitly define the color matching descriptor. If color_matching is not found, config_group_find_item() returns NULL. The code then jumps to out_put_cm, where it calls config_item_put(color_matching);. If color_matching is NULL, this will dereference a null pointer, leading to a crash. [ 2.746440] Unable to handle kernel NULL pointer dereference at virtual address 000000000000008c [ 2.756273] Mem abort info: [ 2.760080] ESR = 0x0000000096000005 [ 2.764872] EC = 0x25: DABT (current EL), IL = 32 bits [ 2.771068] SET = 0, FnV = 0 [ 2.771069] EA = 0, S1PTW = 0 [ 2.771070] FSC = 0x05: level 1 translation fault [ 2.771071] Data abort info: [ 2.771072] ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000 [ 2.771073] CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [ 2.771074] GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [ 2.771075] user pgtable: 4k pages, 39-bit VAs, pgdp=00000000a3e59000 [ 2.771077] [000000000000008c] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 2.771081] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP [ 2.771084] Dumping ftrace buffer: [ 2.771085] (ftrace buffer empty) [ 2.771138] CPU: 7 PID: 486 Comm: ln Tainted: G W E 6.6.58-android15 [ 2.771139] Hardware name: Qualcomm Technologies, Inc. SunP QRD HDK (DT) [ 2.771140] pstate: 61400005 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 2.771141] pc : __uvcg_fill_strm+0x198/0x2cc [ 2.771145] lr : __uvcg_iter_strm_cls+0xc8/0x17c [ 2.771146] sp : ffffffc08140bbb0 [ 2.771146] x29: ffffffc08140bbb0 x28: ffffff803bc81380 x27: ffffff8023bbd250 [ 2.771147] x26: ffffff8023bbd250 x25: ffffff803c361348 x24: ffffff803d8e6768 [ 2.771148] x23: 0000000000000004 x22: 0000000000000003 x21: ffffffc08140bc48 [ 2.771149] x20: 0000000000000000 x19: ffffffc08140bc48 x18: ffffffe9f8cf4a00 [ 2.771150] x17: 000000001bf64ec3 x16: 000000001bf64ec3 x15: ffffff8023bbd250 [ 2.771151] x14: 000000000000000f x13: 004c4b40000f4240 x12: 000a2c2a00051615 [ 2.771152] x11: 000000000000004f x10: ffffffe9f76b40ec x9 : ffffffe9f7e389d0 [ 2.771153] x8 : ffffff803d0d31ce x7 : 000f4240000a2c2a x6 : 0005161500028b0a [ 2.771154] x5 : ffffff803d0d31ce x4 : 0000000000000003 x3 : 0000000000000000 [ 2.771155] x2 : ffffffc08140bc50 x1 : ffffffc08140bc48 x0 : 0000000000000000 [ 2.771156] Call trace: [ 2.771157] __uvcg_fill_strm+0x198/0x2cc [ 2.771157] __uvcg_iter_strm_cls+0xc8/0x17c [ 2.771158] uvcg_streaming_class_allow_link+0x240/0x290 [ 2.771159] configfs_symlink+0x1f8/0x630 [ 2.771161] vfs_symlink+0x114/0x1a0 [ 2.771163] do_symlinkat+0x94/0x28c [ 2.771164] __arm64_sys_symlinkat+0x54/0x70 [ 2.771164] invoke_syscall+0x58/0x114 [ 2.771166] el0_svc_common+0x80/0xe0 [ 2.771168] do_el0_svc+0x1c/0x28 [ 2.771169] el0_svc+0x3c/0x70 [ 2.771172] el0t_64_sync_handler+0x68/0xbc [ 2.771173] el0t_64_sync+0x1a8/0x1ac Initialize color matching descriptor for frame-based format to prevent NULL pointer crash by mirroring the handling done for uncompressed and mjpeg formats. Fixes: 7b5a58952fc3 ("usb: gadget: uvc: configfs: Add frame-based frame format support") Cc: stable <stable@kernel.org> Signed-off-by: Akash Kumar <quic_akakum@quicinc.com> Link: https://lore.kernel.org/r/20250718085138.1118788-1-quic_akakum@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
10 daysMerge tag 'v6.16-rc7' into usb-nextGreg Kroah-Hartman
We need the USB/Thunderbolt fixes in here for other patches to be on top of. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-15usb: gadget: udc: renesas_usb3: Convert to DEFINE_SIMPLE_DEV_PM_OPS()Geert Uytterhoeven
Convert the Renesas USB3.0 Peripheral controller driver from SIMPLE_DEV_PM_OPS() to DEFINE_SIMPLE_DEV_PM_OPS() and pm_sleep_ptr(). This lets us drop the check for CONFIG_PM_SLEEP, and reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled, while increasing build coverage. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/424d6c7843c5bfd47c0e1d8d02aa030581530bb1.1752087999.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-09usb: gadget: configfs: Fix OOB read on empty string writeXinyu Liu
When writing an empty string to either 'qw_sign' or 'landingPage' sysfs attributes, the store functions attempt to access page[l - 1] before validating that the length 'l' is greater than zero. This patch fixes the vulnerability by adding a check at the beginning of os_desc_qw_sign_store() and webusb_landingPage_store() to handle the zero-length input case gracefully by returning immediately. Signed-off-by: Xinyu Liu <katieeliu@tencent.com> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/tencent_B1C9481688D0E95E7362AB2E999DE8048207@qq.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-07usb: gadget: f_uac2: replace scnprintf() with sysfs_emit()Sumanth Gavini
Documentation/filesystems/sysfs.rst mentions that show() should only use sysfs_emit() or sysfs_emit_at() when formating the value to be returned to user space. So replace scnprintf() with sysfs_emit(). Signed-off-by: Sumanth Gavini <sumanth.gavini@yahoo.com> Link: https://lore.kernel.org/r/20250704003425.467299-1-sumanth.gavini@yahoo.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-07usb: gadget: f_fs: Remove unnecessary spinlocks.Ingo Rohloff
Commit 24729b307eefc ("usb: gadget: f_fs: Fix race between aio_cancel() and AIO request complete") moved the call to usb_ep_free_request() from ffs_epfile_async_io_complete() to ffs_user_copy_worker(). In ffs_user_copy_worker(), ki_complete() is called before usb_ep_free_request(). Once ki_complete() returns, ffs_aio_cancel() can no longer be invoked for the completed kiocb, as ki_complete() removes it from the &ctx->active_reqs list in aio.c. ffs_aio_cancel() only applies to kiocb instances still present on this list. The potential race between ki_complete() and ffs_aio_cancel() is already guarded by the &ctx->ctx_lock spinlock in aio.c. As a result, there is no race condition between the usb_ep_dequeue() call in ffs_aio_cancel() and the usb_ep_free_request() call in ffs_user_copy_worker(). Consequently, the spin lock/unlock operations on &io_data->ffs->eps_lock are no longer necessary. Signed-off-by: Ingo Rohloff <ingo.rohloff@lauterbach.com> Link: https://lore.kernel.org/r/20250701113602.33402-2-ingo.rohloff@lauterbach.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-07USB: gadget: f_hid: Fix memory leak in hidg_bind error pathYuhao Jiang
In hidg_bind(), if alloc_workqueue() fails after usb_assign_descriptors() has successfully allocated the USB descriptors, the current error handling does not call usb_free_all_descriptors() to free the allocated descriptors, resulting in a memory leak. Restructure the error handling by adding proper cleanup labels: - fail_free_all: cleans up workqueue and descriptors - fail_free_descs: cleans up descriptors only - fail: original cleanup for earlier failures This ensures that allocated resources are properly freed in reverse order of their allocation, preventing the memory leak when alloc_workqueue() fails. Fixes: a139c98f760ef ("USB: gadget: f_hid: Add GET_REPORT via userspace IOCTL") Cc: stable@vger.kernel.org Signed-off-by: Yuhao Jiang <danisjiang@gmail.com> Link: https://lore.kernel.org/r/20250623094844.244977-1-danisjiang@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-05Merge merge point of tag 'usb-6.16-rc5' into usb-nextGreg Kroah-Hartman
We need the USB fixes in here as well to build on top of for other changes that depend on them. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-02functionfs, gadgetfs: use simple_recursive_removal()Al Viro
usual mount leaks if something had been bound on top of disappearing files there. Reviewed-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2025-06-28usb: gadget: u_serial: remove some dead codeDan Carpenter
There is no need to check if "port" is NULL. We already verified that it is non-NULL. It's a stack variable and can't be modified by a different thread. Delete this dead code. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Prashanth K <prashanth.k@oss.qualcomm.com> Link: https://lore.kernel.org/r/685c1413.050a0220.1a8223.d0b9@mx.google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: u_serial: Fix race condition in TTY wakeupKuen-Han Tsai
A race condition occurs when gs_start_io() calls either gs_start_rx() or gs_start_tx(), as those functions briefly drop the port_lock for usb_ep_queue(). This allows gs_close() and gserial_disconnect() to clear port.tty and port_usb, respectively. Use the null-safe TTY Port helper function to wake up TTY. Example CPU1: CPU2: gserial_connect() // lock gs_close() // await lock gs_start_rx() // unlock usb_ep_queue() gs_close() // lock, reset port.tty and unlock gs_start_rx() // lock tty_wakeup() // NPE Fixes: 35f95fd7f234 ("TTY: usb/u_serial, use tty from tty_port") Cc: stable <stable@kernel.org> Signed-off-by: Kuen-Han Tsai <khtsai@google.com> Reviewed-by: Prashanth K <prashanth.k@oss.qualcomm.com> Link: https://lore.kernel.org/linux-usb/20240116141801.396398-1-khtsai@google.com/ Link: https://lore.kernel.org/r/20250617050844.1848232-2-khtsai@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19Revert "usb: gadget: u_serial: Add null pointer check in gs_start_io"Kuen-Han Tsai
This reverts commit ffd603f214237e250271162a5b325c6199a65382. Commit ffd603f21423 ("usb: gadget: u_serial: Add null pointer check in gs_start_io") adds null pointer checks at the beginning of the gs_start_io() function to prevent a null pointer dereference. However, these checks are redundant because the function's comment already requires callers to hold the port_lock and ensure port.tty and port_usb are not null. All existing callers already follow these rules. The true cause of the null pointer dereference is a race condition. When gs_start_io() calls either gs_start_rx() or gs_start_tx(), the port_lock is temporarily released for usb_ep_queue(). This allows port.tty and port_usb to be cleared. Fixes: ffd603f21423 ("usb: gadget: u_serial: Add null pointer check in gs_start_io") Cc: stable <stable@kernel.org> Signed-off-by: Kuen-Han Tsai <khtsai@google.com> Reviewed-by: Prashanth K <prashanth.k@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250617050844.1848232-1-khtsai@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: Remove unused usb_remove_configDr. David Alan Gilbert
usb_remove_config() was added in 2012's commit Fixes: 51cce6fc155c ("usb: gadget: composite: Add usb_remove_config") but has remained unused. I see there was a use in drivers/staging/cch that was removed by commit 515e6dd20b3f ("Staging: ccg: delete it from the tree") but it had it's own copy of usb_remove_config() Remove it. Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org> Link: https://lore.kernel.org/r/20250608233338.179894-3-linux@treblig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: config: Remove unused usb_gadget_config_bufDr. David Alan Gilbert
usb_gadget_config_buf() has been unused since 2012's commit fa06920a3ece ("usb: gadget: Remove File-backed Storage Gadget (g_file_storage).") Remove it. Signed-off-by: "Dr. David Alan Gilbert" <linux@treblig.org> Link: https://lore.kernel.org/r/20250608233338.179894-2-linux@treblig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: dummy_hcd: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618065750.816965-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: composite: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618035540.290411-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: net2280: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() and usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618040204.363383-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: pch_udc: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618040908.408309-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: udc-xilinx: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() and usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618041222.408372-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: f_fs: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618070216.817034-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-19usb: gadget: m66592-udc: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_num() and usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bEndpointAddress & \(USB_ENDPOINT_NUMBER_MASK\|0x0f\)) + usb_endpoint_num(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250618070714.817146-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-10usb: gadget: pxa25x_udc: Switch to use devm_gpio_request_one()Andy Shevchenko
devm_gpio_request() is going to be removed. This driver is only user of that API. Convert it to use different API. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250531212331.3635269-2-andriy.shevchenko@linux.intel.com Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2025-06-08treewide, timers: Rename from_timer() to timer_container_of()Ingo Molnar
Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com
2025-06-06Merge tag 'usb-6.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.16-rc1. Included in here are the following: - USB offload support for audio devices. I think this takes the record for the most number of patch series (30+) over the longest period of time (2+ years) to get merged properly. Many props go to Wesley Cheng for seeing this effort through, they took a major out-of-tree hacked-up-monstrosity that was created by multiple vendors for their specific devices, got it all merged into a semi-coherent set of changes, and got all of the different major subsystems to agree on how this should be implemented both with changes to their code as well as userspace apis, AND wrangled the hardware companies into agreeing to go forward with this, despite making them all redo work they had already done in their private device trees. This feature offers major power savings on embedded devices where a USB audio stream can continue to flow while the rest of the system is sleeping, something that devices running on battery power really care about. There are still some more small tweaks left to be done here, and those patches are still out for review and arguing among the different hardware companies, but this is a major step forward and a great example of how to do upstream development well. - small number of thunderbolt fixes and updates, things seem to be slowing down here (famous last words...) - xhci refactors and reworking to try to handle some rough corner cases in some hardware implementations where things don't always work properly - typec driver updates - USB3 power management reworking and updates - Removal of some old and orphaned UDC gadget drivers that had not been used in a very long time, dropping over 11 thousand lines from the tree, always a nice thing, making up for the 12k lines added for the USB offload feature. - lots of little updates and fixes in different drivers All of these have been in linux-next for over 2 weeks, the USB offload logic has been in there for 8 weeks now, with no reported issues" * tag 'usb-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (172 commits) ALSA: usb-audio: qcom: fix USB_XHCI dependency ASoC: qdsp6: fix compile-testing without CONFIG_OF usb: misc: onboard_usb_dev: fix build warning for CONFIG_USB_ONBOARD_DEV_USB5744=n usb: typec: tipd: fix typo in TPS_STATUS_HIGH_VOLAGE_WARNING macro USB: typec: fix const issue in typec_match() USB: gadget: udc: fix const issue in gadget_match_driver() USB: gadget: fix up const issue with struct usb_function_instance USB: serial: pl2303: add new chip PL2303GC-Q20 and PL2303GT-2AB USB: serial: bus: fix const issue in usb_serial_device_match() usb: usbtmc: Fix timeout value in get_stb usb: usbtmc: Fix read_stb function and get_stb ioctl ALSA: qc_audio_offload: try to reduce address space confusion ALSA: qc_audio_offload: avoid leaking xfer_buf allocation ALSA: qc_audio_offload: rename dma/iova/va/cpu/phys variables ALSA: usb-audio: qcom: Fix an error handling path in qc_usb_audio_probe() usb: misc: onboard_usb_dev: Fix usb5744 initialization sequence dt-bindings: usb: ti,usb8041: Add binding for TI USB8044 hub controller usb: misc: onboard_usb_dev: Add support for TI TUSB8044 hub usb: gadget: lpc32xx_udc: Use USB API functions rather than constants usb: gadget: epautoconf: Use USB API functions rather than constants ...
2025-06-03Merge tag 'hid-for-linus-2025060301' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid Pull HID updates from Jiri Kosina: - support for Apple Magic Mouse 2 USB-C (Aditya Garg) - power management improvement for multitouch devices (Werner Sembach) - fix for ACPI initialization in intel-thc driver (Wentao Guan) - adaptation of HID drivers to use new gpio_chip's line setter callbacks (Bartosz Golaszewski) - fix potential OOB in usbhid_parse() (Terry Junge) - make it possible to set hid_mouse_ignore_list dynamically (the same way we handle other quirks) (Aditya Garg) - other small assorted fixes and device ID additions * tag 'hid-for-linus-2025060301' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: HID: multitouch: Disable touchpad on firmware level while not in use HID: core: Add functions for HID drivers to react on first open and last close call HID: HID_APPLETB_BL should depend on X86 HID: HID_APPLETB_KBD should depend on X86 HID: appletb-kbd: Use secs_to_jiffies() instead of msecs_to_jiffies() HID: intel-thc-hid: intel-thc: make read-only arrays static const HID: magicmouse: Apple Magic Mouse 2 USB-C support HID: mcp2221: use new line value setter callbacks HID: mcp2200: use new line value setter callbacks HID: cp2112: use new line value setter callbacks HID: cp2112: use lock guards HID: cp2112: hold the lock for the entire direction_output() call HID: cp2112: destroy mutex on driver detach HID: intel-thc-hid: intel-quicki2c: pass correct arguments to acpi_evaluate_object HID: corsair-void: Use to_delayed_work() HID: hid-logitech: use sysfs_emit_at() instead of scnprintf() HID: quirks: Add HID_QUIRK_IGNORE_MOUSE quirk HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() HID: Kysona: Add periodic online check
2025-05-23USB: gadget: udc: fix const issue in gadget_match_driver()Greg Kroah-Hartman
gadget_match_driver() takes a const pointer, and then decides to cast it away into a non-const one, which is not a good thing to do overall. Fix this up by properly setting the pointers to be const to preserve that attribute. Fixes: d69d80484598 ("driver core: have match() callback in struct bus_type take a const *") Link: https://lore.kernel.org/r/2025052139-rash-unsaddle-7c5e@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-23USB: gadget: fix up const issue with struct usb_function_instanceGreg Kroah-Hartman
In struct usb_function, the struct usb_function_instance pointer variable "fi" is listed as const, but it is written to in numerous places, making the const marking of it a total lie. Fix this up by just removing the const pointer attribute as this is modified in numerous places. Link: https://lore.kernel.org/r/2025052145-undress-puma-f7cf@gregkh Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21usb: gadget: lpc32xx_udc: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250519063120.724793-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21usb: gadget: epautoconf: Use USB API functions rather than constantsChen Ni
Use the function usb_endpoint_type() rather than constants. The Coccinelle semantic patch is as follows: @@ struct usb_endpoint_descriptor *epd; @@ - (epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) + usb_endpoint_type(epd) Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250519062545.724727-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-21usb: gadget: u_serial: Avoid double unlock of serial_port_lockPrashanth K
Avoid unlocking serial_port_lock twice in gserial_suspend(), this can occur if gserial_wakeup_host() fails. And since wakeup is performed outside spinlock, check if the port is valid before proceeding again. Fixes: 3baea29dc0a7 ("usb: gadget: u_serial: Implement remote wakeup capability") Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lore.kernel.org/all/aBHatifO5bjR1yPt@stanley.mountain/ Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250506104912.3750934-1-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-16Merge tag 'sound-6.15-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A handful small fixes. The only significant change is the fix for MIDI 2.0 UMP handling in ALSA sequencer, but as MIDI 2.0 stuff is still new and rarely used, the impact should be pretty limited. Other than that, quirks for USB-audio and a few cosmetic fixes and changes in drivers that should be safe to apply" * tag 'sound-6.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: Add sample rate quirk for Microdia JP001 USB Camera ALSA: es1968: Add error handling for snd_pcm_hw_constraint_pow2() ALSA: sh: SND_AICA should depend on SH_DMA_API ALSA: usb-audio: Add sample rate quirk for Audioengine D1 ALSA: ump: Fix a typo of snd_ump_stream_msg_device_info ALSA/hda: intel-sdw-acpi: Correct sdw_intel_acpi_scan() function parameter ALSA: seq: Fix delivery of UMP events to group ports
2025-05-13Merge 6.15-rc6 into usb-nextGreg Kroah-Hartman
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-11ALSA: ump: Fix a typo of snd_ump_stream_msg_device_infoTakashi Iwai
s/devince/device/ It's used only internally, so no any behavior changes. Fixes: 37e0e14128e0 ("ALSA: ump: Support UMP Endpoint and Function Block parsing") Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://patch.msgid.link/20250511141147.10246-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2025-05-01usb: gadget: Use get_status callback to set remote wakeup capabilityPrashanth K
Currently when the host sends GET_STATUS request for an interface, we use get_status callbacks to set/clear remote wakeup capability of that interface. And if get_status callback isn't present for that interface, then we assume its remote wakeup capability based on bmAttributes. Now consider a scenario, where we have a USB configuration with multiple interfaces (say ECM + ADB), here ECM is remote wakeup capable and as of now ADB isn't. And bmAttributes will indicate the device as wakeup capable. With the current implementation, when host sends GET_STATUS request for both interfaces, we will set FUNC_RW_CAP for both. This results in USB3 CV Chapter 9.15 (Function Remote Wakeup Test) failures as host expects remote wakeup from both interfaces. The above scenario is just an example, and the failure can be observed if we use configuration with any interface except ECM. Hence avoid configuring remote wakeup capability from composite driver based on bmAttributes, instead use get_status callbacks and let the function drivers decide this. Cc: stable <stable@kernel.org> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-3-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: f_ecm: Add get_status callbackPrashanth K
When host sends GET_STATUS to ECM interface, handle the request from the function driver. Since the interface is wakeup capable, set the corresponding bit, and set RW bit if the function is already armed for wakeup by the host. Cc: stable <stable@kernel.org> Fixes: 481c225c4802 ("usb: gadget: Handle function suspend feature selector") Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Link: https://lore.kernel.org/r/20250422103231.1954387-2-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: tegra-xudc: ACK ST_RC after clearing CTRL_RUNWayne Chang
We identified a bug where the ST_RC bit in the status register was not being acknowledged after clearing the CTRL_RUN bit in the control register. This could lead to unexpected behavior in the USB gadget drivers. This patch resolves the issue by adding the necessary code to explicitly acknowledge ST_RC after clearing CTRL_RUN based on the programming sequence, ensuring proper state transition. Fixes: 49db427232fe ("usb: gadget: Add UDC driver for tegra XUSB device mode controller") Cc: stable <stable@kernel.org> Signed-off-by: Wayne Chang <waynec@nvidia.com> Link: https://lore.kernel.org/r/20250418081228.1194779-1-waynec@nvidia.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: hid: allow dynamic interval configuration via configfsBen Hoff
This patch enhances the HID gadget driver to support dynamic configuration of the interrupt polling interval (bInterval) via configfs. A new ‘interval’ attribute is exposed under each HID function’s configfs directory, and any write to it will adjust the poll rate for all endpoints without requiring a rebuild. When the attribute has never been written, legacy defaults are preserved: • Full-Speed (FS) endpoints (IN & OUT) poll every 10 ms • High-Speed (HS) endpoints (IN & OUT) poll every 4 micro-frames (~1 ms) To implement this cleanly: • Add two new fields to f_hid_opts and f_hidg: – unsigned char interval – bool interval_user_set • Introduce dedicated f_hid_opts_interval_show/store functions. The store routine parses into an unsigned int, bounds‐checks, assigns to opts->interval, and sets opts->interval_user_set = true. • Initialize opts->interval = 4 and opts->interval_user_set = false in hidg_alloc_inst(), then copy both into the live f_hidg instance in hidg_alloc(). • In hidg_bind(), set each endpoint’s bInterval based on whether the user has written the attribute: – If interval_user_set == false, use FS=10 / HS=4 – If interval_user_set == true, use the user’s value for both FS & HS Signed-off-by: Ben Hoff <hoff.benjamin.k@gmail.com> Link: https://lore.kernel.org/r/20250429182809.811786-1-hoff.benjamin.k@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-05-01usb: gadget: g_ffs: Adjust f_ffs[0] allocation typeKees Cook
In preparation for making the kmalloc family of allocators type aware, we need to make sure that the returned type from the allocation matches the type of the variable being assigned. (Before, the allocator would always return "void *", which can be implicitly cast to any pointer type.) The assigned type is "struct usb_function **" but the returned type will be "struct usb_function ***". These are the same size allocation (pointer size), but different types. Adjust the allocation type to match the assignment. Signed-off-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250426062125.work.209-kees@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-25usb: gadget: u_serial: Implement remote wakeup capabilityPrashanth K
Implement the remote wakeup capability for u_serial. The newly added function gserial_wakeup_host() wakes up the host when there is some data to be sent while the device is suspended. Add gser_get_status() callbacks to advertise f_serial interface as function wakeup capable. Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250424121142.4180241-1-prashanth.k@oss.qualcomm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-25usb: gadget: udc: renesas_usb3: remove unnecessary NULL check before phy_exit()Chen Ni
phy_exit() checks for NULL pointers internally. Remove unneeded NULL check here. Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Link: https://lore.kernel.org/r/20250422073714.1334380-1-nichen@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-24HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse()Terry Junge
Update struct hid_descriptor to better reflect the mandatory and optional parts of the HID Descriptor as per USB HID 1.11 specification. Note: the kernel currently does not parse any optional HID class descriptors, only the mandatory report descriptor. Update all references to member element desc[0] to rpt_desc. Add test to verify bLength and bNumDescriptors values are valid. Replace the for loop with direct access to the mandatory HID class descriptor member for the report descriptor. This eliminates the possibility of getting an out-of-bounds fault. Add a warning message if the HID descriptor contains any unsupported optional HID class descriptors. Reported-by: syzbot+c52569baf0c843f35495@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c52569baf0c843f35495 Fixes: f043bfc98c19 ("HID: usbhid: fix out-of-bounds bug") Cc: stable@vger.kernel.org Signed-off-by: Terry Junge <linuxhid@cosmicgizmosystems.com> Reviewed-by: Michael Kelley <mhklinux@outlook.com> Signed-off-by: Jiri Kosina <jkosina@suse.com>
2025-04-15usb: potential integer overflow in usbg_make_tpg()Chen Yufeng
The variable tpgt in usbg_make_tpg() is defined as unsigned long and is assigned to tpgt->tport_tpgt, which is defined as u16. This may cause an integer overflow when tpgt is greater than USHRT_MAX (65535). I haven't tried to trigger it myself, but it is possible to trigger it by calling usbg_make_tpg() with a large value for tpgt. I modified the type of tpgt to match tpgt->tport_tpgt and adjusted the relevant code accordingly. This patch is similar to commit 59c816c1f24d ("vhost/scsi: potential memory corruption"). Signed-off-by: Chen Yufeng <chenyufeng@iie.ac.cn> Link: https://lore.kernel.org/r/20250415065857.1619-1-chenyufeng@iie.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-04-11usb: Remove orphaned UDC driversRob Herring (Arm)
These drivers have no way to probe as there are no match tables nor devices created with a matching name in the kernel tree. Marvell UDC was only ever supported by board files which were removed in 2022. For Marvell U3D, which was added in 2012, the PXA2128 aka MMP3 support was never upstreamed with board files and only revived in 2019 with DT support. No U3D DT support has been added since then. The PLX net2272 driver was formerly used on blackfin. It also has PCI support, but that appears to be only for a development board which is likely unused given this device dates back to 2006. Cc: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://lore.kernel.org/r/20250407191756.3584261-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>