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================================================================== BUG: KCSAN: data-race in do_notify_parent_cldstop / do_signal_stop write to 0xffff88809d5e92a0 of 4 bytes by task 24335 on cpu 1: do_signal_stop+0xfb/0x6d0 kernel/signal.c:2339 get_signal+0x6e4/0x15f0 kernel/signal.c:2717 arch_do_signal+0x25/0x270 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0x124/0x210 kernel/entry/common.c:192 irqentry_exit_to_user_mode+0x5/0x20 kernel/entry/common.c:280 irqentry_exit+0xe/0x40 kernel/entry/common.c:368 sysvec_apic_timer_interrupt+0xc6/0xd0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631 read to 0xffff88809d5e92a0 of 4 bytes by task 24360 on cpu 0: do_notify_parent_cldstop+0x1b2/0x280 kernel/signal.c:2057 get_signal+0x11f6/0x15f0 kernel/signal.c:2591 arch_do_signal+0x25/0x270 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0x124/0x210 kernel/entry/common.c:192 syscall_exit_to_user_mode+0x16/0x30 kernel/entry/common.c:267 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: 24360 Comm: syz-executor.1 Not tainted 5.9.0-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/10/16 09:36 | upstream | 9ff9b0d392ea | 6e262c73 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/10/15 00:13 | upstream | 3e4fb4346c78 | fc7735a2 | .config | console log | report | info | ci2-upstream-kcsan-gce | ||||
2020/10/04 07:01 | upstream | 22fbc037cd32 | 1a3f9408 | .config | console log | report | info | ci2-upstream-kcsan-gce |