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BUG: KMSAN: uninit-value in number+0x680/0x1e40 lib/vsprintf.c:457
CPU: 1 PID: 28800 Comm: usb-storage Not tainted 5.4.0-rc5+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x191/0x1f0 lib/dump_stack.c:113
 kmsan_report+0x128/0x220 mm/kmsan/kmsan_report.c:108
 __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:245
 number+0x680/0x1e40 lib/vsprintf.c:457
 vsnprintf+0x1e99/0x3210 lib/vsprintf.c:2576
 vscnprintf+0xc2/0x180 lib/vsprintf.c:2613
 vprintk_store+0xef/0x11e0 kernel/printk/printk.c:1921
 vprintk_emit+0x2fd/0x8d0 kernel/printk/printk.c:1984
 dev_vprintk_emit+0x940/0xb28 drivers/base/core.c:3315
 usb_stor_dbg+0x22d/0x260 drivers/usb/storage/debug.c:171
 alauda_get_media_status drivers/usb/storage/alauda.c:321 [inline]
 alauda_check_media+0x285/0x3310 drivers/usb/storage/alauda.c:458
 alauda_transport+0x462/0x57f0 drivers/usb/storage/alauda.c:1138
 usb_stor_invoke_transport+0xf5/0x27e0 drivers/usb/storage/transport.c:606
 usb_stor_transparent_scsi_command+0x5d/0x70 drivers/usb/storage/protocol.c:108
 usb_stor_control_thread+0xca6/0x11a0 drivers/usb/storage/usb.c:380
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Local variable description: ----status@alauda_check_media
Variable was created at:
 alauda_check_media+0x8e/0x3310 drivers/usb/storage/alauda.c:455
 alauda_check_media+0x8e/0x3310 drivers/usb/storage/alauda.c:455
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