================================================================== BUG: KCSAN: data-race in ktime_get_real_seconds / timekeeping_inject_offset write to 0xffffffff8417d978 of 8 bytes by task 27533 on cpu 0: tk_xtime_add kernel/time/timekeeping.c:144 [inline] timekeeping_inject_offset+0x44e/0x820 kernel/time/timekeeping.c:1365 do_adjtimex+0x581/0x670 kernel/time/timekeeping.c:2406 posix_clock_realtime_adj+0x11/0x20 kernel/time/posix-timers.c:191 do_clock_adjtime kernel/time/posix-timers.c:1109 [inline] __do_sys_clock_adjtime kernel/time/posix-timers.c:1121 [inline] __se_sys_clock_adjtime kernel/time/posix-timers.c:1112 [inline] __x64_sys_clock_adjtime+0x12c/0x1b0 kernel/time/posix-timers.c:1112 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff8417d978 of 8 bytes by task 27530 on cpu 1: ktime_get_real_seconds+0x11/0x20 kernel/time/timekeeping.c:1008 recently_deleted fs/ext4/ialloc.c:704 [inline] find_inode_bit+0x1f9/0x330 fs/ext4/ialloc.c:729 __ext4_new_inode+0xc7a/0x2f70 fs/ext4/ialloc.c:1064 ext4_symlink+0x2c3/0x700 fs/ext4/namei.c:3465 vfs_symlink+0x23a/0x300 fs/namei.c:4182 do_symlinkat+0xeb/0x280 fs/namei.c:4212 __do_sys_symlink fs/namei.c:4233 [inline] __se_sys_symlink fs/namei.c:4231 [inline] __x64_sys_symlink+0x32/0x40 fs/namei.c:4231 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x000000006110ae49 -> 0x000000006110b549 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 27530 Comm: syz-executor.2 Not tainted 5.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================