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================================================================== BUG: KCSAN: data-race in __send_signal / kernel_clone write to 0xffff8881046b702c of 4 bytes by task 1760 on cpu 1: freezer_count include/linux/freezer.h:121 [inline] wait_for_vfork_done kernel/fork.c:1278 [inline] kernel_clone+0x2e3/0x680 kernel/fork.c:2534 __do_sys_clone kernel/fork.c:2620 [inline] __se_sys_clone kernel/fork.c:2604 [inline] __x64_sys_clone+0xb4/0xe0 kernel/fork.c:2604 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881046b702c of 4 bytes by task 9761 on cpu 0: __send_signal+0x282/0x760 kernel/signal.c:1138 do_notify_parent+0x42c/0x4b0 kernel/signal.c:2034 exit_notify kernel/exit.c:683 [inline] do_exit+0xc9a/0x1560 kernel/exit.c:846 __do_sys_exit+0xb/0x10 kernel/exit.c:892 __se_sys_exit+0x5/0x10 kernel/exit.c:890 __x64_sys_exit+0x16/0x20 kernel/exit.c:890 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9761 Comm: syz-fuzzer Not tainted 5.13.0-rc1-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/13 21:00 | upstream | c06a2ba62fc4 | ecb594cb | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __send_signal / kernel_clone |