================================================================== BUG: KCSAN: data-race in dont_mount / step_into read-write to 0xffff88812353b9c0 of 4 bytes by task 5745 on cpu 0: dont_mount+0x27/0x40 include/linux/dcache.h:348 vfs_unlink+0x267/0x3d0 fs/namei.c:4152 do_unlinkat+0x258/0x510 fs/namei.c:4218 __do_sys_unlink fs/namei.c:4266 [inline] __se_sys_unlink fs/namei.c:4264 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:4264 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+0x44/0xae read to 0xffff88812353b9c0 of 4 bytes by task 1442 on cpu 1: __follow_mount_rcu fs/namei.c:1479 [inline] handle_mounts fs/namei.c:1536 [inline] step_into+0xf4/0x760 fs/namei.c:1850 walk_component+0x19a/0x280 fs/namei.c:2026 lookup_last fs/namei.c:2475 [inline] path_lookupat+0x11d/0x2b0 fs/namei.c:2499 filename_lookup+0x130/0x310 fs/namei.c:2528 user_path_at_empty+0x3e/0x110 fs/namei.c:2851 do_readlinkat+0x98/0x210 fs/stat.c:457 __do_sys_readlink fs/stat.c:490 [inline] __se_sys_readlink fs/stat.c:487 [inline] __x64_sys_readlink+0x43/0x50 fs/stat.c:487 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+0x44/0xae value changed: 0x00600008 -> 0x00008008 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1442 Comm: udevd Not tainted 5.18.0-rc1-syzkaller-00016-g3e732ebf7316-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================