EXT4-fs (loop4): encrypted files will use data=ordered instead of data journaling mode [EXT4 FS bs=1024, gc=1, bpg=8192, ipg=32, mo=a00ec019, mo2=0002] System zones: 1-12 EXT4-fs (loop4): 1 truncate cleaned up ================================================================== BUG: KCSAN: data-race in __lru_add_drain_all / folio_add_lru_vma read-write to 0xffff888237d2ac08 of 1 bytes by task 7226 on cpu 1: folio_batch_add include/linux/pagevec.h:77 [inline] folio_batch_add_and_move mm/swap.c:233 [inline] folio_add_lru mm/swap.c:522 [inline] folio_add_lru_vma+0x74/0x170 mm/swap.c:542 do_anonymous_page mm/memory.c:4505 [inline] do_pte_missing mm/memory.c:3895 [inline] handle_pte_fault mm/memory.c:5381 [inline] __handle_mm_fault mm/memory.c:5524 [inline] handle_mm_fault+0x2411/0x2a80 mm/memory.c:5689 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline] handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x3b9/0x650 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 read to 0xffff888237d2ac08 of 1 bytes by task 7236 on cpu 0: folio_batch_count include/linux/pagevec.h:56 [inline] cpu_needs_drain mm/swap.c:800 [inline] __lru_add_drain_all+0x12c/0x410 mm/swap.c:894 lru_add_drain_all+0x10/0x20 mm/swap.c:910 invalidate_bdev+0x47/0x70 block/bdev.c:100 loop_set_status+0x114/0x550 drivers/block/loop.c:1300 lo_ioctl+0x892/0x1330 blkdev_ioctl+0x35f/0x450 block/ioctl.c:676 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xd3/0x150 fs/ioctl.c:893 __x64_sys_ioctl+0x43/0x50 fs/ioctl.c:893 x64_sys_call+0x1581/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7236 Comm: syz.4.1235 Not tainted 6.10.0-rc6-syzkaller-00215-g22f902dfc51e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 ================================================================== loop4: detected capacity change from 512 to 64