================================================================== BUG: KCSAN: data-race in page_address_in_vma / page_cache_delete_batch write to 0xffffea000467fa98 of 8 bytes by task 31334 on cpu 1: page_cache_delete_batch+0x1a7/0x470 mm/filemap.c:308 delete_from_page_cache_batch+0x18f/0x2a0 mm/filemap.c:334 truncate_inode_pages_range+0x3ca/0xae0 mm/truncate.c:370 truncate_inode_pages mm/truncate.c:452 [inline] truncate_pagecache+0x4f/0x70 mm/truncate.c:753 ext4_setattr+0x9a0/0xde0 fs/ext4/inode.c:5502 notify_change+0x8e6/0xa00 fs/attr.c:424 do_truncate fs/open.c:65 [inline] do_sys_ftruncate+0x317/0x420 fs/open.c:193 __do_sys_ftruncate fs/open.c:204 [inline] __se_sys_ftruncate fs/open.c:202 [inline] __x64_sys_ftruncate+0x2f/0x40 fs/open.c:202 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 read to 0xffffea000467fa98 of 8 bytes by task 31323 on cpu 0: folio_test_anon include/linux/page-flags.h:665 [inline] page_address_in_vma+0x4f/0x3a0 mm/rmap.c:752 new_page+0x8b/0x3f0 mm/mempolicy.c:1202 unmap_and_move+0x123/0x950 mm/migrate.c:1105 migrate_pages+0x29e/0x7b0 mm/migrate.c:1388 do_mbind+0x79b/0x8b0 mm/mempolicy.c:1323 kernel_mbind mm/mempolicy.c:1470 [inline] __do_sys_mbind mm/mempolicy.c:1548 [inline] __se_sys_mbind+0x13b/0x3f0 mm/mempolicy.c:1544 __x64_sys_mbind+0x74/0x80 mm/mempolicy.c:1544 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 value changed: 0xffff88812b0fe8f0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 31323 Comm: syz-executor.4 Not tainted 5.19.0-rc3-syzkaller-00027-g78ca55889a54-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================