================================================================== BUG: KCSAN: data-race in __d_lookup_done / __dentry_kill write to 0xffff888128eaacc0 of 4 bytes by task 11892 on cpu 0: __d_lookup_done+0xa4/0x2f0 fs/dcache.c:2629 d_lookup_done include/linux/dcache.h:367 [inline] d_lookup_done include/linux/dcache.h:363 [inline] __lookup_slow+0x22b/0x270 fs/namei.c:1758 lookup_slow fs/namei.c:1774 [inline] walk_component+0x4bf/0x9a0 fs/namei.c:1915 link_path_walk.part.0+0x5e5/0xa80 fs/namei.c:2241 link_path_walk fs/namei.c:2172 [inline] path_openat+0x14c/0x2f70 fs/namei.c:3606 do_filp_open+0x11e/0x1b0 fs/namei.c:3637 do_sys_openat2+0x4f5/0x620 fs/open.c:1149 do_sys_open+0xa2/0x110 fs/open.c:1165 ksys_open include/linux/syscalls.h:1386 [inline] __do_sys_open fs/open.c:1171 [inline] __se_sys_open fs/open.c:1169 [inline] __x64_sys_open+0x50/0x60 fs/open.c:1169 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888128eaacc0 of 4 bytes by task 11463 on cpu 1: dentry_unlist fs/dcache.c:544 [inline] __dentry_kill+0x1b4/0x3b0 fs/dcache.c:575 dentry_kill fs/dcache.c:698 [inline] dput+0x399/0x700 fs/dcache.c:859 path_put_conditional fs/namei.c:863 [inline] follow_managed+0x205/0x720 fs/namei.c:1359 walk_component+0x525/0x9a0 fs/namei.c:1921 link_path_walk.part.0+0x5e5/0xa80 fs/namei.c:2241 link_path_walk fs/namei.c:2172 [inline] path_openat+0x14c/0x2f70 fs/namei.c:3606 do_filp_open+0x11e/0x1b0 fs/namei.c:3637 do_sys_openat2+0x4f5/0x620 fs/open.c:1149 do_sys_open+0xa2/0x110 fs/open.c:1165 ksys_open include/linux/syscalls.h:1386 [inline] __do_sys_open fs/open.c:1171 [inline] __se_sys_open fs/open.c:1169 [inline] __x64_sys_open+0x50/0x60 fs/open.c:1169 do_syscall_64+0xc7/0x390 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 11463 Comm: udevd Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================