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EXT4-fs (loop4): failed to initialize system zone (-117)
EXT4-fs (loop4): mount failed
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BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru

read-write to 0xffff888237c298c8 of 1 bytes by task 24327 on cpu 0:
 folio_batch_add include/linux/pagevec.h:126 [inline]
 folio_batch_add_and_move mm/swap.c:231 [inline]
 folio_add_lru+0x3c/0x130 mm/swap.c:517
 shmem_get_folio_gfp+0xcd3/0x1200 mm/shmem.c:1983
 shmem_fault+0xdf/0x3c0 mm/shmem.c:2163
 __do_fault mm/memory.c:4176 [inline]
 do_read_fault mm/memory.c:4530 [inline]
 do_fault mm/memory.c:4659 [inline]
 do_pte_missing mm/memory.c:3647 [inline]
 handle_pte_fault mm/memory.c:4947 [inline]
 __handle_mm_fault mm/memory.c:5089 [inline]
 handle_mm_fault+0x12f4/0x2c60 mm/memory.c:5243
 faultin_page mm/gup.c:925 [inline]
 __get_user_pages+0x363/0xc30 mm/gup.c:1147
 populate_vma_page_range mm/gup.c:1543 [inline]
 __mm_populate+0x23d/0x370 mm/gup.c:1652
 mm_populate include/linux/mm.h:3153 [inline]
 vm_mmap_pgoff+0x1a3/0x240 mm/util.c:548
 ksys_mmap_pgoff+0xc5/0x320 mm/mmap.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888237c298c8 of 1 bytes by task 24316 on cpu 1:
 folio_batch_count include/linux/pagevec.h:105 [inline]
 cpu_needs_drain mm/swap.c:795 [inline]
 __lru_add_drain_all+0x137/0x420 mm/swap.c:889
 lru_add_drain_all+0x10/0x20 mm/swap.c:905
 invalidate_bdev+0x5a/0x80 block/bdev.c:86
 invalidate_disk+0x29/0x80 block/genhd.c:705
 __loop_clr_fd+0x163/0x3b0 drivers/block/loop.c:1164
 loop_clr_fd drivers/block/loop.c:1257 [inline]
 lo_ioctl+0xe93/0x12e0 drivers/block/loop.c:1563
 blkdev_ioctl+0x38e/0x480 block/ioctl.c:615
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xc9/0x140 fs/ioctl.c:856
 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x00 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 24316 Comm: syz-executor.4 Not tainted 6.4.0-rc3-syzkaller-00171-g9db898594c54 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023
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