Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in prepare_signal / ptrace_stop kernel | 1 | 1180d | 1180d | 0/26 | auto-closed as invalid on 2021/03/07 21:18 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in prepare_signal / ptrace_stop kernel | 1 | 1180d | 1180d | 0/26 | auto-closed as invalid on 2021/03/07 21:18 |
================================================================== BUG: KCSAN: data-race in prepare_signal / ptrace_stop write to 0xffff888142a0d0ac of 4 bytes by task 10638 on cpu 1: freezer_count include/linux/freezer.h:121 [inline] freezable_schedule include/linux/freezer.h:173 [inline] ptrace_stop+0x3a5/0x670 kernel/signal.c:2268 ptrace_do_notify kernel/signal.c:2321 [inline] ptrace_notify+0x107/0x180 kernel/signal.c:2331 ptrace_report_syscall include/linux/tracehook.h:66 [inline] tracehook_report_syscall_entry include/linux/tracehook.h:105 [inline] arch_syscall_enter_tracehook include/linux/entry-common.h:98 [inline] syscall_trace_enter+0x87/0x290 kernel/entry/common.c:60 __syscall_enter_from_user_work kernel/entry/common.c:89 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:107 do_syscall_64+0x27/0x90 arch/x86/entry/common.c:42 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888142a0d0ac of 4 bytes by task 10637 on cpu 0: sig_task_ignored kernel/signal.c:93 [inline] sig_ignored kernel/signal.c:118 [inline] prepare_signal+0x952/0xeb0 kernel/signal.c:1001 __send_signal+0x64/0x760 kernel/signal.c:1121 do_notify_parent+0x42c/0x4b0 kernel/signal.c:2050 exit_notify kernel/exit.c:680 [inline] do_exit+0xd5b/0x1560 kernel/exit.c:846 do_group_exit+0xce/0x1a0 kernel/exit.c:923 get_signal+0xfc3/0x1610 kernel/signal.c:2835 arch_do_signal_or_restart+0x2a/0x220 arch/x86/kernel/signal.c:789 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+0x109/0x190 kernel/entry/common.c:208 irqentry_exit_to_user_mode+0x5/0x20 kernel/entry/common.c:314 irqentry_exit+0xe/0x30 kernel/entry/common.c:405 asm_exc_page_fault+0x1e/0x30 arch/x86/include/asm/idtentry.h:577 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 10637 Comm: syz-executor.1 Not tainted 5.13.0-rc3-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/28 08:23 | upstream | 97e5bf604b7a | 858ea628 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in prepare_signal / ptrace_stop | |||
2021/05/26 18:27 | upstream | ad9f25d33860 | 750ce164 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in prepare_signal / ptrace_stop |