loop3: detected capacity change from 0 to 2048 EXT4-fs (loop3): VFS: Can't find ext4 filesystem ================================================================== BUG: KCSAN: data-race in __lru_add_drain_all / folio_batch_move_lru write to 0xffff888237d29988 of 1 bytes by task 31012 on cpu 1: folio_batch_reinit include/linux/pagevec.h:48 [inline] folio_batch_move_lru+0x2bf/0x2f0 mm/swap.c:225 lru_add_drain_cpu+0x77/0x270 mm/swap.c:652 lru_add_drain mm/swap.c:752 [inline] __folio_batch_release+0x5f/0xe0 mm/swap.c:1059 folio_batch_release include/linux/pagevec.h:83 [inline] truncate_inode_pages_range+0x22e/0x6a0 mm/truncate.c:371 truncate_inode_pages+0x24/0x30 mm/truncate.c:448 kill_bdev block/bdev.c:76 [inline] set_blocksize+0x26c/0x290 block/bdev.c:152 sb_set_blocksize+0x2d/0xb0 block/bdev.c:161 ext4_load_super fs/ext4/super.c:5099 [inline] __ext4_fill_super fs/ext4/super.c:5227 [inline] ext4_fill_super+0xa8e/0x3940 fs/ext4/super.c:5703 get_tree_bdev+0x272/0x300 fs/super.c:1577 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5735 vfs_get_tree+0x51/0x1b0 fs/super.c:1750 do_new_mount+0x203/0x660 fs/namespace.c:3335 path_mount+0x496/0xb30 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3861 __x64_sys_mount+0x67/0x80 fs/namespace.c:3861 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 0xffff888237d29988 of 1 bytes by task 31013 on cpu 0: folio_batch_count include/linux/pagevec.h:53 [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+0x54/0x70 block/bdev.c:86 __ext4_fill_super fs/ext4/super.c:5678 [inline] ext4_fill_super+0x16ef/0x3940 fs/ext4/super.c:5703 get_tree_bdev+0x272/0x300 fs/super.c:1577 ext4_get_tree+0x1c/0x20 fs/ext4/super.c:5735 vfs_get_tree+0x51/0x1b0 fs/super.c:1750 do_new_mount+0x203/0x660 fs/namespace.c:3335 path_mount+0x496/0xb30 fs/namespace.c:3662 do_mount fs/namespace.c:3675 [inline] __do_sys_mount fs/namespace.c:3884 [inline] __se_sys_mount+0x27f/0x2d0 fs/namespace.c:3861 __x64_sys_mount+0x67/0x80 fs/namespace.c:3861 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: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 31013 Comm: syz-executor.3 Not tainted 6.6.0-rc5-syzkaller-00192-g10a6e5feccb8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 ==================================================================