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BUG: KCSAN: data-race in __bio_queue_enter / blk_mq_unfreeze_queue

read-write to 0xffff888102318764 of 4 bytes by task 23175 on cpu 1:
 __blk_mq_unfreeze_queue block/blk-mq.c:225 [inline]
 blk_mq_unfreeze_queue+0x34/0xb0 block/blk-mq.c:236
 loop_set_status+0x401/0x530 drivers/block/loop.c:1312
 lo_ioctl+0x83e/0x1290
 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888102318764 of 4 bytes by task 23172 on cpu 0:
 __bio_queue_enter+0x1fa/0x510 block/blk-core.c:338
 bio_queue_enter block/blk.h:76 [inline]
 blk_mq_get_new_requests block/blk-mq.c:2800 [inline]
 blk_mq_submit_bio+0x351/0xe90 block/blk-mq.c:2902
 __submit_bio block/blk-core.c:591 [inline]
 __submit_bio_noacct_mq block/blk-core.c:668 [inline]
 submit_bio_noacct_nocheck+0x83d/0xaa0 block/blk-core.c:685
 submit_bio_noacct+0x6a5/0x810 block/blk-core.c:791
 submit_bio+0xfb/0x110 block/blk-core.c:827
 submit_bh_wbc+0x2b0/0x2f0 fs/buffer.c:2702
 submit_bh fs/buffer.c:2707 [inline]
 block_read_full_folio+0x4bd/0x530 fs/buffer.c:2325
 blkdev_read_folio+0x18/0x20 block/fops.c:381
 filemap_read_folio mm/filemap.c:2407 [inline]
 do_read_cache_folio+0x19d/0x400 mm/filemap.c:3534
 read_cache_folio+0x36/0x40 mm/filemap.c:3566
 read_mapping_folio include/linux/pagemap.h:762 [inline]
 read_part_sector+0x77/0x140 block/partitions/core.c:717
 read_lba block/partitions/efi.c:248 [inline]
 find_valid_gpt block/partitions/efi.c:603 [inline]
 efi_partition+0x23b/0x1240 block/partitions/efi.c:720
 check_partition block/partitions/core.c:146 [inline]
 blk_add_partitions block/partitions/core.c:602 [inline]
 bdev_disk_changed+0x415/0xbf0 block/partitions/core.c:688
 loop_reread_partitions+0x47/0xb0 drivers/block/loop.c:518
 loop_configure+0xbf9/0xc30 drivers/block/loop.c:1114
 lo_ioctl+0x641/0x1290
 blkdev_ioctl+0x20e/0x440 block/ioctl.c:614
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:856
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00000001 -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 23172 Comm: syz-executor.0 Not tainted 6.1.0-rc5-syzkaller-00015-g81e7cfa3a9eb-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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