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🐞 Open [1033] 🐞 Fixed [3928] 🐞 Invalid [8535] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in complete_signal / exit_signals | 1 | 798d | 798d | 0/23 | closed as invalid on 2020/06/18 14:13 | |||
upstream | KCSAN: data-race in complete_signal / exit_signals (2) | 1 | 762d | 762d | 0/23 | auto-closed as invalid on 2020/08/22 00:27 | |||
upstream | KCSAN: data-race in complete_signal / exit_signals (4) | 1 | 448d | 448d | 0/23 | auto-closed as invalid on 2021/07/01 12:39 |
================================================================== BUG: KCSAN: data-race in complete_signal / exit_signals write to 0xffff88800a3f702c of 4 bytes by task 13006 on cpu 1: exit_signals+0x10d/0x540 kernel/signal.c:2865 do_exit+0x1b4/0x1690 kernel/exit.c:781 do_group_exit+0x17d/0x180 kernel/exit.c:922 __do_sys_exit_group+0xb/0x10 kernel/exit.c:933 __se_sys_exit_group+0x5/0x10 kernel/exit.c:931 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:931 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88800a3f702c of 4 bytes by interrupt on cpu 0: wants_signal kernel/signal.c:978 [inline] complete_signal+0x7c/0x600 kernel/signal.c:1001 send_sigqueue+0x268/0x430 kernel/signal.c:1881 posix_timer_event kernel/time/posix-timers.c:354 [inline] posix_timer_fn+0xe8/0x210 kernel/time/posix-timers.c:380 __run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1519 __hrtimer_run_queues kernel/time/hrtimer.c:1583 [inline] hrtimer_interrupt+0x36e/0xa30 kernel/time/hrtimer.c:1645 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline] __sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1102 asm_call_irq_on_stack+0xf/0x20 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline] run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline] sysvec_apic_timer_interrupt+0x52/0x90 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:629 native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x32/0x50 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] do_notify_parent_cldstop+0x25e/0x290 kernel/signal.c:2073 get_signal+0x10ee/0x14e0 kernel/signal.c:2607 arch_do_signal_or_restart+0x2a/0x270 arch/x86/kernel/signal.c:811 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x11a/0x1b0 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:302 do_syscall_64+0x45/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 13052 Comm: syz-executor.0 Not tainted 5.11.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci2-upstream-kcsan-gce | 2021/01/29 20:46 | upstream | bec4c2968fce | fc9fd31e | .config | log | report | info | KCSAN: data-race in complete_signal / exit_signals | ||
ci2-upstream-kcsan-gce | 2021/01/17 12:59 | upstream | 0da0a8a0a0e1 | 813be542 | .config | log | report | info |