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hwarc_neep_init() assumes that endpoint 0 is interrupt, but there's no check for that, which results in a WARNING in USB core code, when a bad USB descriptor is provided from a device: usb 1-1: BOGUS urb xfer, pipe 1 != type 3 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3 at drivers/usb/core/urb.c:449 usb_submit_urb+0xf8a/0x11d0 Modules linked in: CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.13.0+ #111 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Workqueue: usb_hub_wq hub_event task: ffff88006bdc1a00 task.stack: ffff88006bde8000 RIP: 0010:usb_submit_urb+0xf8a/0x11d0 drivers/usb/core/urb.c:448 RSP: 0018:ffff88006bdee3c0 EFLAGS: 00010282 RAX: 0000000000000029 RBX: ffff8800672a7200 RCX: 0000000000000000 RDX: 0000000000000029 RSI: ffff88006c815c78 RDI: ffffed000d7bdc6a RBP: ffff88006bdee4c0 R08: fffffbfff0fe00ff R09: fffffbfff0fe00ff R10: 0000000000000018 R11: fffffbfff0fe00fe R12: 1ffff1000d7bdc7f R13: 0000000000000003 R14: 0000000000000001 R15: ffff88006b02cc90 FS: 0000000000000000(0000) GS:ffff88006c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe4daddf000 CR3: 000000006add6000 CR4: 00000000000006f0 Call Trace: hwarc_neep_init+0x4ce/0x9c0 drivers/uwb/hwa-rc.c:710 uwb_rc_add+0x2fb/0x730 drivers/uwb/lc-rc.c:361 hwarc_probe+0x34e/0x9b0 drivers/uwb/hwa-rc.c:858 usb_probe_interface+0x351/0x8d0 drivers/usb/core/driver.c:361 really_probe drivers/base/dd.c:385 driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 __device_attach+0x269/0x3c0 drivers/base/dd.c:682 device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 device_add+0xcf9/0x1640 drivers/base/core.c:1703 usb_set_configuration+0x1064/0x1890 drivers/usb/core/message.c:1932 generic_probe+0x73/0xe0 drivers/usb/core/generic.c:174 usb_probe_device+0xaf/0xe0 drivers/usb/core/driver.c:266 really_probe drivers/base/dd.c:385 driver_probe_device+0x610/0xa00 drivers/base/dd.c:529 __device_attach_driver+0x230/0x290 drivers/base/dd.c:625 bus_for_each_drv+0x15e/0x210 drivers/base/bus.c:463 __device_attach+0x269/0x3c0 drivers/base/dd.c:682 device_initial_probe+0x1f/0x30 drivers/base/dd.c:729 bus_probe_device+0x1da/0x280 drivers/base/bus.c:523 device_add+0xcf9/0x1640 drivers/base/core.c:1703 usb_new_device+0x7b8/0x1020 drivers/usb/core/hub.c:2457 hub_port_connect drivers/usb/core/hub.c:4890 hub_port_connect_change drivers/usb/core/hub.c:4996 port_event drivers/usb/core/hub.c:5102 hub_event+0x23c8/0x37c0 drivers/usb/core/hub.c:5182 process_one_work+0x9fb/0x1570 kernel/workqueue.c:2097 worker_thread+0x1e4/0x1350 kernel/workqueue.c:2231 kthread+0x324/0x3f0 kernel/kthread.c:231 ret_from_fork+0x25/0x30 arch/x86/entry/entry_64.S:425 Code: 48 8b 85 30 ff ff ff 48 8d b8 98 00 00 00 e8 8e 93 07 ff 45 89 e8 44 89 f1 4c 89 fa 48 89 c6 48 c7 c7 a0 e5 55 86 e8 20 08 8f fd <0f> ff e9 9b f7 ff ff e8 4a 04 d6 fd e9 80 f7 ff ff e8 60 11 a6 ---[ end trace 55d741234124cfc3 ]--- Check that endpoint is interrupt. Found by syzkaller. Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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