sd 1:0:0:1: [sdc] Test Unit Ready failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK sd 1:0:0:1: [sdc] Read Capacity(10) failed: Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK sd 1:0:0:1: [sdc] Sense not available. ===================================================== BUG: KMSAN: uninit-value in scsi_mode_sense+0x1046/0x16d0 drivers/scsi/scsi_lib.c:2239 scsi_mode_sense+0x1046/0x16d0 drivers/scsi/scsi_lib.c:2239 sd_do_mode_sense drivers/scsi/sd.c:2656 [inline] sd_read_cache_type drivers/scsi/sd.c:2764 [inline] sd_revalidate_disk+0x6225/0xdfd0 drivers/scsi/sd.c:3328 sd_probe+0x170e/0x1990 drivers/scsi/sd.c:3589 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach_async_helper+0x314/0x3e0 drivers/base/dd.c:928 async_run_entry_fn+0xd2/0x630 kernel/async.c:127 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Uninit was stored to memory at: memcpy_from_page include/linux/highmem.h:346 [inline] memcpy_from_bvec include/linux/bvec.h:207 [inline] bio_copy_kern_endio_read+0x4a3/0x620 block/blk-map.c:403 bio_endio+0xa7f/0xac0 block/bio.c:1516 req_bio_endio block/blk-mq.c:685 [inline] blk_update_request+0xc20/0x1d90 block/blk-mq.c:807 blk_mq_end_request block/blk-mq.c:928 [inline] blk_mq_dispatch_rq_list+0x16f8/0x3f50 block/blk-mq.c:1873 __blk_mq_sched_dispatch_requests+0x58b/0x8d0 block/blk-mq-sched.c:299 blk_mq_sched_dispatch_requests+0x1b9/0x380 block/blk-mq-sched.c:332 __blk_mq_run_hw_queue+0x118/0x2c0 block/blk-mq.c:1968 __blk_mq_delay_run_hw_queue+0x221/0xa20 block/blk-mq.c:2045 blk_mq_run_hw_queue+0x4ad/0x9e0 block/blk-mq.c:2096 blk_mq_sched_insert_request+0x3b8/0x790 block/blk-mq-sched.c:451 blk_execute_rq_nowait+0x54c/0x5d0 block/blk-mq.c:1192 blk_execute_rq+0x129/0x470 block/blk-mq.c:1231 __scsi_execute+0x83f/0xe20 drivers/scsi/scsi_lib.c:244 scsi_execute_req include/scsi/scsi_device.h:469 [inline] scsi_mode_sense+0x737/0x16d0 drivers/scsi/scsi_lib.c:2202 sd_do_mode_sense drivers/scsi/sd.c:2656 [inline] sd_read_cache_type drivers/scsi/sd.c:2764 [inline] sd_revalidate_disk+0x6225/0xdfd0 drivers/scsi/sd.c:3328 sd_probe+0x170e/0x1990 drivers/scsi/sd.c:3589 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach_async_helper+0x314/0x3e0 drivers/base/dd.c:928 async_run_entry_fn+0xd2/0x630 kernel/async.c:127 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Uninit was created at: __alloc_pages+0xbbf/0x1090 mm/page_alloc.c:5429 alloc_pages+0xa08/0xd50 bio_copy_kern block/blk-map.c:449 [inline] blk_rq_map_kern+0x813/0x1400 block/blk-map.c:640 __scsi_execute+0x4bd/0xe20 drivers/scsi/scsi_lib.c:229 scsi_execute_req include/scsi/scsi_device.h:469 [inline] scsi_mode_sense+0x737/0x16d0 drivers/scsi/scsi_lib.c:2202 sd_do_mode_sense drivers/scsi/sd.c:2656 [inline] sd_read_cache_type drivers/scsi/sd.c:2764 [inline] sd_revalidate_disk+0x6225/0xdfd0 drivers/scsi/sd.c:3328 sd_probe+0x170e/0x1990 drivers/scsi/sd.c:3589 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [inline] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach_async_helper+0x314/0x3e0 drivers/base/dd.c:928 async_run_entry_fn+0xd2/0x630 kernel/async.c:127 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 CPU: 1 PID: 1051 Comm: kworker/u4:5 Not tainted 5.17.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound async_run_entry_fn =====================================================