KCSAN: data-race in fsverity_file_open / integrity_inode

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in fsverity_file_open / integrity_inode_get (2) integrity lsm				1	1229d	1229d	0/26	auto-closed as invalid on 2021/01/18 09:17

================================================================== BUG: KCSAN: data-race in fsverity_file_open / integrity_inode_get write to 0xffff8880b5f8f634 of 4 bytes by task 13060 on cpu 0: integrity_inode_get+0x121/0x1a0 security/integrity/iint.c:124 process_measurement+0x24d/0x1130 security/integrity/ima/ima_main.c:233 ima_file_check+0x7e/0xb0 security/integrity/ima/ima_main.c:438 do_last fs/namei.c:3412 [inline] path_openat+0xfaf/0x36e0 fs/namei.c:3525 do_filp_open+0x11e/0x1b0 fs/namei.c:3555 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 __do_sys_open fs/open.c:1115 [inline] __se_sys_open fs/open.c:1110 [inline] __x64_sys_open+0x55/0x70 fs/open.c:1110 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880b5f8f634 of 4 bytes by task 13065 on cpu 1: fsverity_file_open+0x3c/0x230 fs/verity/open.c:296 ext4_file_open+0x142/0x440 fs/ext4/file.c:458 do_dentry_open+0x301/0x970 fs/open.c:797 vfs_open+0x62/0x80 fs/open.c:914 do_last fs/namei.c:3408 [inline] path_openat+0xf73/0x36e0 fs/namei.c:3525 do_filp_open+0x11e/0x1b0 fs/namei.c:3555 do_sys_open+0x3b3/0x4f0 fs/open.c:1097 ksys_open include/linux/syscalls.h:1385 [inline] __do_sys_creat fs/open.c:1155 [inline] __se_sys_creat fs/open.c:1153 [inline] __x64_sys_creat+0x45/0x60 fs/open.c:1153 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 13065 Comm: syz-executor.2 Not tainted 5.4.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================