ISOFS: Unable to identify CD-ROM format.
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BUG: KCSAN: data-race in lru_add_drain_all / pagevec_lru_move_fn

write to 0xffff88812c029b60 of 1 bytes by task 4028 on cpu 0:
 pagevec_reinit include/linux/pagevec.h:63 [inline]
 pagevec_lru_move_fn+0x159/0x170 mm/swap.c:216
 __pagevec_lru_add mm/swap.c:987 [inline]
 lru_add_drain_cpu+0x170/0x2d0 mm/swap.c:599
 lru_add_drain+0x32/0x70 mm/swap.c:694
 unmap_region+0x6a/0x230 mm/mmap.c:2590
 __do_munmap+0x62e/0xb20 mm/mmap.c:2813
 __vm_munmap+0xa9/0x130 mm/mmap.c:2836
 __do_sys_munmap mm/mmap.c:2862 [inline]
 __se_sys_munmap mm/mmap.c:2858 [inline]
 __x64_sys_munmap+0x48/0x60 mm/mmap.c:2858
 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

read to 0xffff88812c029b60 of 1 bytes by task 8583 on cpu 1:
 lru_add_drain_all+0x169/0x3a0 mm/swap.c:746
 invalidate_bdev+0x65/0x90 fs/block_dev.c:97
 __loop_clr_fd+0x24e/0x710 drivers/block/loop.c:1140
 loop_clr_fd drivers/block/loop.c:1237 [inline]
 lo_ioctl+0x24a/0xc80 drivers/block/loop.c:1606
 __blkdev_driver_ioctl block/ioctl.c:321 [inline]
 blkdev_ioctl+0x1a1/0x420 block/ioctl.c:717
 block_ioctl+0x91/0xb0 fs/block_dev.c:1983
 vfs_ioctl fs/ioctl.c:47 [inline]
 ksys_ioctl+0x101/0x150 fs/ioctl.c:763
 __do_sys_ioctl fs/ioctl.c:772 [inline]
 __se_sys_ioctl fs/ioctl.c:770 [inline]
 __x64_sys_ioctl+0x47/0x60 fs/ioctl.c:770
 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8583 Comm: syz-executor.1 Not tainted 5.6.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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