EXT4-fs (loop1): bad geometry: block count 1769600 exceeds size of device (1 blocks) ================================================================== BUG: KCSAN: data-race in __lru_add_drain_all / __pagevec_lru_add write to 0xffff888237c264a8 of 1 bytes by task 19980 on cpu 0: pagevec_reinit include/linux/pagevec.h:56 [inline] __pagevec_lru_add+0x27a/0x2b0 mm/swap.c:1066 lru_cache_add mm/swap.c:475 [inline] lru_cache_add_inactive_or_unevictable+0x156/0x270 mm/swap.c:506 do_anonymous_page+0x709/0x8a0 mm/memory.c:3671 handle_pte_fault mm/memory.c:4410 [inline] __handle_mm_fault mm/memory.c:4547 [inline] handle_mm_fault+0x966/0x1a60 mm/memory.c:4645 do_user_addr_fault+0x609/0xc00 arch/x86/mm/fault.c:1390 handle_page_fault arch/x86/mm/fault.c:1475 [inline] exc_page_fault+0x91/0x220 arch/x86/mm/fault.c:1531 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:568 copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:205 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline] raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline] copyout lib/iov_iter.c:190 [inline] copy_page_to_iter_iovec lib/iov_iter.c:261 [inline] copy_page_to_iter+0x32d/0x860 lib/iov_iter.c:973 filemap_read+0xf06/0x1230 mm/filemap.c:2605 generic_file_read_iter+0x75/0x2c0 mm/filemap.c:2701 blkdev_read_iter+0xb9/0xf0 fs/block_dev.c:1730 call_read_iter include/linux/fs.h:2108 [inline] new_sync_read fs/read_write.c:415 [inline] vfs_read+0x565/0x5d0 fs/read_write.c:496 ksys_read+0xce/0x180 fs/read_write.c:634 __do_sys_read fs/read_write.c:644 [inline] __se_sys_read fs/read_write.c:642 [inline] __x64_sys_read+0x3e/0x50 fs/read_write.c:642 do_syscall_64+0x44/0x80 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888237c264a8 of 1 bytes by task 19997 on cpu 1: pagevec_count include/linux/pagevec.h:61 [inline] __lru_add_drain_all+0x12c/0x3e0 mm/swap.c:828 lru_add_drain_all+0xc/0x10 mm/swap.c:850 invalidate_bdev+0x50/0x70 fs/block_dev.c:96 __loop_clr_fd+0x2e2/0x640 drivers/block/loop.c:1242 loop_clr_fd drivers/block/loop.c:1337 [inline] lo_ioctl+0x9eb/0x11f0 drivers/block/loop.c:1695 blkdev_ioctl+0x1d0/0x3c0 block/ioctl.c:585 block_ioctl+0x6d/0x80 fs/block_dev.c:1662 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl+0xcb/0x140 fs/ioctl.c:1055 __x64_sys_ioctl+0x3f/0x50 fs/ioctl.c:1055 do_syscall_64+0x44/0x80 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x0f -> 0x04 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19997 Comm: syz-executor.1 Not tainted 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================