================================================================== BUG: KCSAN: data-race in __anon_vma_prepare / lock_vma_under_rcu write to 0xffff888103dfba48 of 8 bytes by task 18273 on cpu 0: __anon_vma_prepare+0x147/0x2b0 mm/rmap.c:214 anon_vma_prepare include/linux/rmap.h:159 [inline] wp_page_copy mm/memory.c:3069 [inline] do_wp_page+0x1554/0x1ee0 mm/memory.c:3452 handle_pte_fault mm/memory.c:4997 [inline] __handle_mm_fault mm/memory.c:5122 [inline] handle_mm_fault+0xe2a/0x2cc0 mm/memory.c:5287 do_user_addr_fault arch/x86/mm/fault.c:1413 [inline] handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x2f7/0x6c0 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 read to 0xffff888103dfba48 of 8 bytes by task 18272 on cpu 1: lock_vma_under_rcu+0x16a/0x2a0 mm/memory.c:5452 do_user_addr_fault arch/x86/mm/fault.c:1356 [inline] handle_page_fault arch/x86/mm/fault.c:1505 [inline] exc_page_fault+0x164/0x6c0 arch/x86/mm/fault.c:1561 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 value changed: 0x0000000000000000 -> 0xffff888102ca35b0 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 18272 Comm: syz-executor.5 Not tainted 6.6.0-syzkaller-10265-gbabe393974de #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 ==================================================================