================================================================== BUG: KCSAN: data-race in do_signal_stop / task_set_jobctl_pending write to 0xffff888121a09064 of 4 bytes by task 17466 on cpu 1: freezer_count include/linux/freezer.h:121 [inline] freezable_schedule include/linux/freezer.h:173 [inline] do_signal_stop+0x1f0/0x4e0 kernel/signal.c:2390 get_signal+0xa8f/0x1290 kernel/signal.c:2592 do_signal+0x2b/0x670 arch/x86/kernel/signal.c:813 exit_to_usermode_loop+0x24a/0x2c0 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x36e/0x390 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888121a09064 of 4 bytes by task 17310 on cpu 0: task_set_jobctl_pending+0x98/0x180 kernel/signal.c:291 do_signal_stop+0x3f7/0x4e0 kernel/signal.c:2349 get_signal+0x601/0x1290 kernel/signal.c:2694 do_signal+0x2b/0x670 arch/x86/kernel/signal.c:813 exit_to_usermode_loop+0x24a/0x2c0 arch/x86/entry/common.c:160 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x36e/0x390 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 17310 Comm: syz-executor.2 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================