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🐞 Open [1158] ≡ Subsystems 🐞 Fixed [4412] 🐞 Invalid [9929] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes | 💬 Send us feedback |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in free_pid / zap_pid_ns_processes (2) | 2 | 787d | 801d | 0/24 | auto-closed as invalid on 2021/03/08 05:19 | |||
upstream | KCSAN: data-race in free_pid / zap_pid_ns_processes (4) | 2 | 654d | 667d | 0/24 | auto-closed as invalid on 2021/07/19 14:02 | |||
upstream | KCSAN: data-race in free_pid / zap_pid_ns_processes | 12 | 1146d | 1251d | 0/24 | auto-closed as invalid on 2020/04/18 12:14 |
================================================================== BUG: KCSAN: data-race in free_pid / zap_pid_ns_processes write to 0xffff88811c551798 of 4 bytes by task 9289 on cpu 0: free_pid+0x79/0x190 kernel/pid.c:136 __change_pid kernel/pid.c:353 [inline] detach_pid+0x147/0x160 kernel/pid.c:358 __unhash_process kernel/exit.c:77 [inline] __exit_signal kernel/exit.c:148 [inline] release_task+0x6f0/0xbe0 kernel/exit.c:199 exit_notify kernel/exit.c:699 [inline] do_exit+0xee9/0x1560 kernel/exit.c:845 do_group_exit+0xce/0x1a0 kernel/exit.c:922 get_signal+0xf83/0x15d0 kernel/signal.c:2781 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+0x104/0x170 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:301 do_syscall_64+0x40/0x50 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88811c551798 of 4 bytes by task 1764 on cpu 1: zap_pid_ns_processes+0x256/0x370 kernel/pid_namespace.c:244 find_child_reaper kernel/exit.c:542 [inline] forget_original_parent kernel/exit.c:631 [inline] exit_notify kernel/exit.c:668 [inline] do_exit+0x13f0/0x1560 kernel/exit.c:845 do_group_exit+0xa4/0x1a0 kernel/exit.c:922 __do_sys_exit_group+0xb/0x10 kernel/exit.c:933 __se_sys_exit_group+0x5/0x10 kernel/exit.c:931 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:931 do_syscall_64+0x34/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 1764 Comm: syz-executor.2 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-upstream-kcsan-gce | 2021/04/15 16:51 | upstream | 7f75285ca572 | c59079a6 | .config | console log | report | info | KCSAN: data-race in free_pid / zap_pid_ns_processes | |||
ci2-upstream-kcsan-gce | 2021/03/30 04:12 | upstream | 1e43c377a79f | 6a81331a | .config | console log | report | info | KCSAN: data-race in free_pid / zap_pid_ns_processes |