Code: 00 49 c7 87 80 0c 00 00 00 00 00 00 48 c7 c7 98 56 da 90 48 8b 75 a0 48 8b 55 80 44 89 e9 44 8b 85 08 ff ff ff e8 3a a2 3e f8 <0f> 0b 4c 8b 65 c0 44 8b ad 40 ff ff ff 4c 8b b5 e8 fe ff ff 44 89
RSP: 0018:ffff888102efe948 EFLAGS: 00010246
RAX: 01daf1c3608fc200 RBX: 0000000000000000 RCX: ffff888102e7c180
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff888102efea70 R08: ffffffff8194c519 R09: ffff88823fd5f450
R10: ffff88823f4cd900 R11: ffff888102afe498 R12: 0000000000000000
=====================================================
BUG: KMSAN: uninit-value in number+0xde7/0x2410 lib/vsprintf.c:495
 number+0xde7/0x2410 lib/vsprintf.c:495
 vsnprintf+0x1de2/0x3460 lib/vsprintf.c:2872
 vprintk_store+0x52e/0x2110 kernel/printk/printk.c:2158
 vprintk_emit+0x276/0xa70 kernel/printk/printk.c:2256
 vprintk_default+0x8a/0xa0 kernel/printk/printk.c:2283
 vprintk+0x163/0x180 kernel/printk/printk_safe.c:50
 _printk+0x191/0x1d3 kernel/printk/printk.c:2293
 __show_regs+0x78c/0x1040 arch/x86/kernel/process_64.c:89
 show_regs+0xc0/0x160 arch/x86/kernel/dumpstack.c:463
 __warn+0x3c2/0x730 kernel/panic.c:596
 report_bug+0x8eb/0xae0 lib/bug.c:199
 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:315
 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:335
 asm_exc_invalid_op+0x12/0x20
 usb_submit_urb+0x1c76/0x2a30 drivers/usb/core/urb.c:504
 ar5523_submit_rx_cmd+0x2a1/0x580 drivers/net/wireless/ath/ar5523/ar5523.c:212
 ar5523_probe+0x1d66/0x3bc0 drivers/net/wireless/ath/ar5523/ar5523.c:1647
 usb_probe_interface+0xe8b/0x1580 drivers/usb/core/driver.c:396
 really_probe+0x6cb/0x1350 drivers/base/dd.c:621
 __driver_probe_device+0x3ed/0x530 drivers/base/dd.c:752
 driver_probe_device+0xb3/0x850 drivers/base/dd.c:782
 __device_attach_driver+0x6b4/0x920 drivers/base/dd.c:899
 bus_for_each_drv+0x2da/0x400 drivers/base/bus.c:427
 __device_attach+0x555/0x880 drivers/base/dd.c:970
 device_initial_probe+0x4e/0x60 drivers/base/dd.c:1017
 bus_probe_device+0x185/0x400 drivers/base/bus.c:487
 device_add+0x1fff/0x26e0 drivers/base/core.c:3405
 usb_set_configuration+0x36bd/0x3cf0 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x140/0x300 drivers/usb/core/generic.c:238
 usb_probe_device+0x30f/0x570 drivers/usb/core/driver.c:293
 really_probe+0x6cb/0x1350 drivers/base/dd.c:621
 __driver_probe_device+0x3ed/0x530 drivers/base/dd.c:752
 driver_probe_device+0xb3/0x850 drivers/base/dd.c:782
 __device_attach_driver+0x6b4/0x920 drivers/base/dd.c:899
 bus_for_each_drv+0x2da/0x400 drivers/base/bus.c:427
 __device_attach+0x555/0x880 drivers/base/dd.c:970
 device_initial_probe+0x4e/0x60 drivers/base/dd.c:1017
 bus_probe_device+0x185/0x400 drivers/base/bus.c:487
 device_add+0x1fff/0x26e0 drivers/base/core.c:3405
 usb_new_device+0x1b93/0x2950 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5665 [inline]
 hub_event+0x5929/0x88a0 drivers/usb/core/hub.c:5747
 process_one_work+0xe67/0x1860 kernel/workqueue.c:2289
 process_scheduled_works kernel/workqueue.c:2352 [inline]
 worker_thread+0x1761/0x21f0 kernel/workqueue.c:2438
 kthread+0x3c7/0x500 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30

Local variable tmp created at:
 number+0xb5/0x2410 lib/vsprintf.c:458
 vsnprintf+0x1de2/0x3460 lib/vsprintf.c:2872

CPU: 1 PID: 25 Comm: kworker/1:1 Tainted: G        W         5.18.0-syzkaller-16253-g2f3064574275 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
=====================================================