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BUG: KMSAN: uninit-value in scsi_sanitize_inquiry_string drivers/scsi/scsi_scan.c:540 [inline]
BUG: KMSAN: uninit-value in scsi_probe_lun drivers/scsi/scsi_scan.c:630 [inline]
BUG: KMSAN: uninit-value in scsi_probe_and_add_lun+0xf2b/0x5ca0 drivers/scsi/scsi_scan.c:1087
CPU: 0 PID: 1262 Comm: kworker/u4:16 Not tainted 5.4.0-rc5+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound async_run_entry_fn
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
 scsi_sanitize_inquiry_string drivers/scsi/scsi_scan.c:540 [inline]
 scsi_probe_lun drivers/scsi/scsi_scan.c:630 [inline]
 scsi_probe_and_add_lun+0xf2b/0x5ca0 drivers/scsi/scsi_scan.c:1087
 __scsi_scan_target+0x3a4/0x24e0 drivers/scsi/scsi_scan.c:1562
 scsi_scan_channel drivers/scsi/scsi_scan.c:1650 [inline]
 scsi_scan_host_selected+0x78f/0xb80 drivers/scsi/scsi_scan.c:1679
 do_scsi_scan_host drivers/scsi/scsi_scan.c:1817 [inline]
 do_scan_async+0x1d4/0xc30 drivers/scsi/scsi_scan.c:1827
 async_run_entry_fn+0x16d/0x770 kernel/async.c:123
 process_one_work+0x1572/0x1ef0 kernel/workqueue.c:2269
 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:151 [inline]
 kmsan_internal_chain_origin+0xbd/0x180 mm/kmsan/kmsan.c:319
 kmsan_memcpy_memmove_metadata+0x25c/0x2e0 mm/kmsan/kmsan.c:254
 kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:274
 __msan_memcpy+0x56/0x70 mm/kmsan/kmsan_instr.c:129
 bio_copy_kern_endio_read+0x3dd/0x8e0 block/bio.c:1528
 bio_endio+0xa3e/0xbc0 block/bio.c:1819
 req_bio_endio block/blk-core.c:242 [inline]
 blk_update_request+0xd7c/0x20c0 block/blk-core.c:1462
 scsi_end_request+0x10b/0xeb0 drivers/scsi/scsi_lib.c:579
 scsi_io_completion+0x289/0x2630 drivers/scsi/scsi_lib.c:963
 scsi_finish_command+0x6f9/0x720 drivers/scsi/scsi.c:228
 scsi_softirq_done+0x772/0x980 drivers/scsi/scsi_lib.c:1477
 blk_done_softirq+0x360/0x4e0 block/blk-softirq.c:37
 __do_softirq+0x4a1/0x83a kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:375 [inline]
 irq_exit+0x230/0x280 kernel/softirq.c:416
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 do_IRQ+0x123/0x360 arch/x86/kernel/irq.c:263
 ret_from_intr+0x0/0x33
 commit_creds+0x80/0x1590 kernel/cred.c:443
 call_usermodehelper_exec_async+0x453/0x9c0 kernel/umh.c:103
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Uninit was created at:
 kmsan_save_stack_with_flags+0x3f/0x90 mm/kmsan/kmsan.c:151
 kmsan_internal_alloc_meta_for_pages mm/kmsan/kmsan_shadow.c:362 [inline]
 kmsan_alloc_page+0x153/0x360 mm/kmsan/kmsan_shadow.c:391
 __alloc_pages_nodemask+0x149d/0x60c0 mm/page_alloc.c:4796
 alloc_pages_current+0x68d/0x9a0 mm/mempolicy.c:2188
 alloc_pages include/linux/gfp.h:511 [inline]
 bio_copy_kern+0x305/0xbd0 block/bio.c:1574
 blk_rq_map_kern+0x490/0x820 block/blk-map.c:237
 __scsi_execute+0x2cf/0xb00 drivers/scsi/scsi_lib.c:265
 scsi_execute_req include/scsi/scsi_device.h:451 [inline]
 scsi_probe_lun drivers/scsi/scsi_scan.c:593 [inline]
 scsi_probe_and_add_lun+0x910/0x5ca0 drivers/scsi/scsi_scan.c:1087
 __scsi_scan_target+0x3a4/0x24e0 drivers/scsi/scsi_scan.c:1562
 scsi_scan_channel drivers/scsi/scsi_scan.c:1650 [inline]
 scsi_scan_host_selected+0x78f/0xb80 drivers/scsi/scsi_scan.c:1679
 do_scsi_scan_host drivers/scsi/scsi_scan.c:1817 [inline]
 do_scan_async+0x1d4/0xc30 drivers/scsi/scsi_scan.c:1827
 async_run_entry_fn+0x16d/0x770 kernel/async.c:123
 process_one_work+0x1572/0x1ef0 kernel/workqueue.c:2269
 worker_thread+0x111b/0x2460 kernel/workqueue.c:2415
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355
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