================================================================== BUG: KCSAN: data-race in __dentry_kill / d_set_d_op write to 0xffff8880ae3760c0 of 4 bytes by task 31922 on cpu 0: d_set_d_op+0x16f/0x210 fs/dcache.c:1856 simple_lookup fs/libfs.c:71 [inline] simple_lookup+0x9f/0xb0 fs/libfs.c:66 lookup_open fs/namei.c:3060 [inline] open_last_lookups fs/namei.c:3155 [inline] path_openat+0xb33/0x23d0 fs/namei.c:3343 do_filp_open+0x11e/0x1b0 fs/namei.c:3373 do_sys_openat2+0x52e/0x680 fs/open.c:1148 do_sys_open+0xa2/0x110 fs/open.c:1164 ksys_open include/linux/syscalls.h:1386 [inline] __do_sys_open fs/open.c:1170 [inline] __se_sys_open fs/open.c:1168 [inline] __x64_sys_open+0x50/0x60 fs/open.c:1168 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880ae3760c0 of 4 bytes by task 19956 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 handle_mounts fs/namei.c:1375 [inline] step_into+0x8a3/0x1090 fs/namei.c:1676 open_last_lookups fs/namei.c:3178 [inline] path_openat+0x34e/0x23d0 fs/namei.c:3343 do_filp_open+0x11e/0x1b0 fs/namei.c:3373 do_sys_openat2+0x52e/0x680 fs/open.c:1148 do_sys_open+0xa2/0x110 fs/open.c:1164 ksys_open include/linux/syscalls.h:1386 [inline] __do_sys_open fs/open.c:1170 [inline] __se_sys_open fs/open.c:1168 [inline] __x64_sys_open+0x50/0x60 fs/open.c:1168 do_syscall_64+0xc7/0x3b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 19956 Comm: syz-executor.0 Not tainted 5.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================