KCSAN: data-race in copyin / copyin (2)

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in copyin / copyin (3) mm	6				54	876d	1260d	0/29	auto-obsoleted due to no activity on 2023/11/15 09:03
upstream	KCSAN: data-race in copyin / copyin mm	6				6	2100d	2206d	0/29	closed as invalid on 2020/06/18 14:24

================================================================== BUG: KCSAN: data-race in copyin / copyin write to 0xffff888141ac7000 of 4096 bytes by task 7115 on cpu 1: instrument_copy_from_user include/linux/instrumented.h:136 [inline] copyin+0x67/0x90 lib/iov_iter.c:180 _copy_from_iter+0x256/0x8b0 lib/iov_iter.c:628 copy_page_from_iter+0x303/0x3a0 lib/iov_iter.c:749 process_vm_rw_pages mm/process_vm_access.c:43 [inline] process_vm_rw_single_vec+0x273/0x440 mm/process_vm_access.c:117 process_vm_rw_core mm/process_vm_access.c:215 [inline] process_vm_rw+0x3e1/0x570 mm/process_vm_access.c:283 __do_sys_process_vm_writev mm/process_vm_access.c:303 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:298 [inline] __x64_sys_process_vm_writev+0x76/0x90 mm/process_vm_access.c:298 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+0x63/0xcd write to 0xffff888141ac7000 of 4096 bytes by task 7116 on cpu 0: instrument_copy_from_user include/linux/instrumented.h:136 [inline] copyin+0x67/0x90 lib/iov_iter.c:180 _copy_from_iter+0x256/0x8b0 lib/iov_iter.c:628 copy_page_from_iter+0x303/0x3a0 lib/iov_iter.c:749 process_vm_rw_pages mm/process_vm_access.c:43 [inline] process_vm_rw_single_vec+0x273/0x440 mm/process_vm_access.c:117 process_vm_rw_core mm/process_vm_access.c:215 [inline] process_vm_rw+0x3e1/0x570 mm/process_vm_access.c:283 __do_sys_process_vm_writev mm/process_vm_access.c:303 [inline] __se_sys_process_vm_writev mm/process_vm_access.c:298 [inline] __x64_sys_process_vm_writev+0x76/0x90 mm/process_vm_access.c:298 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+0x63/0xcd Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7116 Comm: syz-executor.1 Not tainted 5.19.0-syzkaller-13322-gd4252071b97d-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 ==================================================================