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================================================================== BUG: KCSAN: data-race in do_notify_parent_cldstop / do_signal_stop write to 0xffff888102568060 of 4 bytes by task 11662 on cpu 1: do_signal_stop+0xfb/0x800 kernel/signal.c:2414 get_signal+0xbd0/0x15b0 kernel/signal.c:2815 arch_do_signal_or_restart+0x8c/0x2e0 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x113/0x190 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300 do_syscall_64+0x50/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888102568060 of 4 bytes by task 11639 on cpu 0: do_notify_parent_cldstop+0x1c1/0x290 get_signal+0x241/0x15b0 kernel/signal.c:2684 arch_do_signal_or_restart+0x8c/0x2e0 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x113/0x190 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300 do_syscall_64+0x50/0xd0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00000000 -> 0x00000014 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 11639 Comm: syz-executor.1 Not tainted 5.17.0-rc5-syzkaller-00235-gc47658311d60-dirty #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2022/02/26 02:53 | upstream | c47658311d60 | 45a13a73 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in do_notify_parent_cldstop / do_signal_stop | |||
2022/01/30 14:18 | upstream | 8dd71685dcb7 | 495e00c5 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in do_notify_parent_cldstop / do_signal_stop |