loop0: detected capacity change from 0 to 6
==================================================================
BUG: KCSAN: data-race in __delete_from_page_cache / folio_mapping

write to 0xffffea0004d93f18 of 8 bytes by task 6631 on cpu 0:
 page_cache_delete mm/filemap.c:144 [inline]
 __delete_from_page_cache+0x1b7/0x2c0 mm/filemap.c:231
 delete_from_page_cache+0x97/0x1e0 mm/filemap.c:266
 truncate_inode_page+0x3e/0x50 mm/truncate.c:229
 shmem_undo_range+0x2a0/0xdb0 mm/shmem.c:953
 shmem_truncate_range mm/shmem.c:1056 [inline]
 shmem_evict_inode+0x115/0x560 mm/shmem.c:1138
 evict+0x1aa/0x410 fs/inode.c:592
 iput_final fs/inode.c:1672 [inline]
 iput+0x3ef/0x580 fs/inode.c:1698
 dentry_unlink_inode+0x23d/0x250 fs/dcache.c:376
 __dentry_kill+0x293/0x450 fs/dcache.c:582
 dput+0x218/0x430 fs/dcache.c:888
 do_renameat2+0x6fb/0xa20 fs/namei.c:4779
 __do_sys_rename fs/namei.c:4823 [inline]
 __se_sys_rename fs/namei.c:4821 [inline]
 __x64_sys_rename+0x58/0x60 fs/namei.c:4821
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffea0004d93f18 of 8 bytes by task 8342 on cpu 1:
 folio_mapping+0x92/0x120 mm/util.c:722
 folio_evictable mm/internal.h:112 [inline]
 __pagevec_lru_add_fn+0x81/0x380 mm/swap.c:1042
 __pagevec_lru_add+0x1c3/0x270 mm/swap.c:1070
 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:612
 lru_add_drain mm/swap.c:716 [inline]
 __pagevec_release+0x4b/0xc0 mm/swap.c:996
 pagevec_release include/linux/pagevec.h:81 [inline]
 truncate_inode_pages_range+0x23d/0xa00 mm/truncate.c:339
 truncate_inode_pages+0x20/0x30 mm/truncate.c:435
 kill_bdev block/bdev.c:78 [inline]
 set_blocksize+0x24e/0x270 block/bdev.c:158
 sb_set_blocksize block/bdev.c:167 [inline]
 sb_min_blocksize+0x92/0x110 block/bdev.c:183
 fat_fill_super+0xe95/0x2af0 fs/fat/inode.c:1646
 vfat_fill_super+0x2c/0x40 fs/fat/namei_vfat.c:1051
 mount_bdev+0x1e8/0x290 fs/super.c:1370
 vfat_mount+0x2d/0x40 fs/fat/namei_vfat.c:1058
 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610
 vfs_get_tree+0x4a/0x1a0 fs/super.c:1500
 do_new_mount fs/namespace.c:2988 [inline]
 path_mount+0x11cf/0x1c40 fs/namespace.c:3318
 do_mount fs/namespace.c:3331 [inline]
 __do_sys_mount fs/namespace.c:3539 [inline]
 __se_sys_mount+0x24b/0x2f0 fs/namespace.c:3516
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffff888107804d60 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 8342 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
FAT-fs (loop0): Directory bread(block 6) failed