loop3: detected capacity change from 0 to 136
==================================================================
BUG: KCSAN: data-race in __lru_add_drain_all / __pagevec_lru_add

write to 0xffff888237d22528 of 1 bytes by task 32049 on cpu 1:
 pagevec_reinit include/linux/pagevec.h:56 [inline]
 __pagevec_lru_add+0x211/0x240 mm/swap.c:1057
 lru_add_drain_cpu+0x6a/0x270 mm/swap.c:597
 lru_add_drain mm/swap.c:701 [inline]
 __pagevec_release+0x57/0xa0 mm/swap.c:980
 pagevec_release include/linux/pagevec.h:81 [inline]
 shmem_undo_range+0x3af/0xea0 mm/shmem.c:959
 shmem_truncate_range mm/shmem.c:1058 [inline]
 shmem_evict_inode+0x115/0x5b0 mm/shmem.c:1140
 evict+0x1c8/0x3c0 fs/inode.c:588
 iput_final fs/inode.c:1664 [inline]
 iput+0x430/0x580 fs/inode.c:1690
 dentry_unlink_inode+0x273/0x290 fs/dcache.c:376
 __dentry_kill+0x2af/0x4e0 fs/dcache.c:582
 dput+0xc6/0x360 fs/dcache.c:888
 do_renameat2+0x6fb/0xa20 fs/namei.c:4781
 __do_sys_rename fs/namei.c:4825 [inline]
 __se_sys_rename fs/namei.c:4823 [inline]
 __x64_sys_rename+0x58/0x60 fs/namei.c:4823
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff888237d22528 of 1 bytes by task 21070 on cpu 0:
 pagevec_count include/linux/pagevec.h:61 [inline]
 __lru_add_drain_all+0x12c/0x3e0 mm/swap.c:819
 lru_add_drain_all+0xc/0x10 mm/swap.c:841
 invalidate_bdev+0x56/0x80 block/bdev.c:87
 __loop_clr_fd+0x521/0x850 drivers/block/loop.c:1399
 loop_clr_fd drivers/block/loop.c:1494 [inline]
 lo_ioctl+0xac5/0x13e0 drivers/block/loop.c:1850
 blkdev_ioctl+0x1d0/0x3f0 block/ioctl.c:589
 block_ioctl+0x6e/0x80 block/fops.c:478
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:860
 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 21070 Comm: syz-executor.3 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
loop3: detected capacity change from 0 to 136