================================================================== BUG: KCSAN: data-race in delete_from_page_cache_batch / page_address_in_vma write to 0xffffea0005128318 of 8 bytes by task 2261 on cpu 1: page_cache_delete_batch mm/filemap.c:318 [inline] delete_from_page_cache_batch+0x2fc/0x690 mm/filemap.c:349 truncate_inode_pages_range+0x1a5/0xa70 mm/truncate.c:326 truncate_inode_pages mm/truncate.c:424 [inline] truncate_pagecache+0x4f/0x70 mm/truncate.c:736 ext4_setattr+0xa21/0xec0 fs/ext4/inode.c:5498 notify_change+0x8a3/0xa80 fs/attr.c:398 do_truncate+0xe8/0x130 fs/open.c:64 handle_truncate fs/namei.c:3030 [inline] do_open fs/namei.c:3378 [inline] path_openat+0x19b2/0x1f20 fs/namei.c:3507 do_filp_open+0xe9/0x200 fs/namei.c:3534 do_sys_openat2+0xa3/0x250 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_openat fs/open.c:1236 [inline] __se_sys_openat fs/open.c:1231 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1231 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffea0005128318 of 8 bytes by task 2269 on cpu 0: page_address_in_vma+0xc2/0x300 mm/rmap.c:721 new_page+0x4b/0x170 mm/mempolicy.c:1214 unmap_and_move mm/migrate.c:1132 [inline] migrate_pages+0x3b3/0x1530 mm/migrate.c:1411 do_mbind+0xd43/0xf50 mm/mempolicy.c:1340 kernel_mbind mm/mempolicy.c:1475 [inline] __do_sys_mbind mm/mempolicy.c:1482 [inline] __se_sys_mbind mm/mempolicy.c:1478 [inline] __x64_sys_mbind+0x10a/0x130 mm/mempolicy.c:1478 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0xffff8881455f5468 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 2269 Comm: syz-executor.4 Tainted: G W 5.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================