Fedor Pchelkin <pchelkin@xxxxxxxxx> wrote: > The bug arises when a USB device claims to be an ATH9K but doesn't > have the expected endpoints. (In this case there was an interrupt > endpoint where the driver expected a bulk endpoint.) The kernel > needs to be able to handle such devices without getting an internal error. > > usb 1-1: BOGUS urb xfer, pipe 3 != type 1 > WARNING: CPU: 3 PID: 500 at drivers/usb/core/urb.c:493 usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493 > Modules linked in: > CPU: 3 PID: 500 Comm: kworker/3:2 Not tainted 5.10.135-syzkaller #0 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 > Workqueue: events request_firmware_work_func > RIP: 0010:usb_submit_urb+0xce2/0x1430 drivers/usb/core/urb.c:493 > Call Trace: > ath9k_hif_usb_alloc_rx_urbs drivers/net/wireless/ath/ath9k/hif_usb.c:908 [inline] > ath9k_hif_usb_alloc_urbs+0x75e/0x1010 drivers/net/wireless/ath/ath9k/hif_usb.c:1019 > ath9k_hif_usb_dev_init drivers/net/wireless/ath/ath9k/hif_usb.c:1109 [inline] > ath9k_hif_usb_firmware_cb+0x142/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1242 > request_firmware_work_func+0x12e/0x240 drivers/base/firmware_loader/main.c:1097 > process_one_work+0x9af/0x1600 kernel/workqueue.c:2279 > worker_thread+0x61d/0x12f0 kernel/workqueue.c:2425 > kthread+0x3b4/0x4a0 kernel/kthread.c:313 > ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299 > > Found by Linux Verification Center (linuxtesting.org) with Syzkaller. > > Suggested-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Fedor Pchelkin <pchelkin@xxxxxxxxx> > Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx> > Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Patch applied to ath-next branch of ath.git, thanks. 16ef02bad239 wifi: ath9k: verify the expected usb_endpoints are present -- https://patchwork.kernel.org/project/linux-wireless/patch/20221008211532.74583-1-pchelkin@xxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
