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================================================================== BUG: KCSAN: data-race in ktime_get_real_seconds / timekeeping_inject_offset write to 0xffffffff892c3df8 of 8 bytes by task 26528 on cpu 1: tk_xtime_add kernel/time/timekeeping.c:124 [inline] timekeeping_inject_offset+0x453/0x6d0 kernel/time/timekeeping.c:1295 do_adjtimex+0x57e/0x670 kernel/time/timekeeping.c:2332 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_64+0x51/0xb0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffffffff892c3df8 of 8 bytes by task 26529 on cpu 0: ktime_get_real_seconds+0x11/0x20 kernel/time/timekeeping.c:939 recently_deleted fs/ext4/ialloc.c:699 [inline] find_inode_bit+0x231/0x3a0 fs/ext4/ialloc.c:724 __ext4_new_inode+0xc84/0x2fc0 fs/ext4/ialloc.c:927 ext4_symlink+0x354/0x7e0 fs/ext4/namei.c:3303 vfs_symlink+0x218/0x2f0 fs/namei.c:3953 do_symlinkat+0xee/0x280 fs/namei.c:3980 __do_sys_symlink fs/namei.c:3999 [inline] __se_sys_symlink fs/namei.c:3997 [inline] __x64_sys_symlink+0x32/0x40 fs/namei.c:3997 do_syscall_64+0x51/0xb0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 26529 Comm: syz-executor.2 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/07/19 09:25 | upstream | f932d58abc38 | 9c812472 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/07/16 09:50 | upstream | 994e99a96c9b | ada108d0 | .config | console log | report | ci2-upstream-kcsan-gce | |||||
2020/06/24 15:38 | upstream | 3e08a95294a4 | 41694dbf | .config | console log | report | ci2-upstream-kcsan-gce |