================================================================== BUG: KCSAN: data-race in lookup_fast / retain_dentry write to 0xffff888120711180 of 4 bytes by task 28812 on cpu 0: retain_dentry+0x1db/0x260 fs/dcache.c:659 dput+0x10e/0x420 fs/dcache.c:873 path_put fs/namei.c:496 [inline] terminate_walk+0x109/0x270 fs/namei.c:593 path_openat+0x1df2/0x20c0 fs/namei.c:3361 do_filp_open+0xbd/0x1d0 fs/namei.c:3387 do_sys_openat2+0x33b/0x500 fs/open.c:1179 do_sys_open fs/open.c:1195 [inline] ksys_open include/linux/syscalls.h:1390 [inline] __do_sys_open fs/open.c:1201 [inline] __se_sys_open fs/open.c:1199 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1199 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888120711180 of 4 bytes by task 28813 on cpu 1: d_revalidate fs/namei.c:767 [inline] lookup_fast+0x15f/0x370 fs/namei.c:1493 open_last_lookups fs/namei.c:3135 [inline] path_openat+0x467/0x20c0 fs/namei.c:3357 do_filp_open+0xbd/0x1d0 fs/namei.c:3387 do_sys_openat2+0x33b/0x500 fs/open.c:1179 do_sys_open fs/open.c:1195 [inline] ksys_open include/linux/syscalls.h:1390 [inline] __do_sys_open fs/open.c:1201 [inline] __se_sys_open fs/open.c:1199 [inline] __x64_sys_open+0xe2/0x110 fs/open.c:1199 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 28813 Comm: syz-executor.3 Not tainted 5.8.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================