Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __ptrace_unlink / get_signal kernel | 1 | 1578d | 1578d | 0/26 | auto-closed as invalid on 2020/03/08 23:54 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __ptrace_unlink / get_signal kernel | 1 | 1578d | 1578d | 0/26 | auto-closed as invalid on 2020/03/08 23:54 |
================================================================== BUG: KCSAN: data-race in __ptrace_unlink / get_signal write to 0xffff8881242e2550 of 8 bytes by task 7599 on cpu 1: __ptrace_unlink+0x59/0x320 kernel/ptrace.c:126 __ptrace_detach+0x1b/0x1d0 kernel/ptrace.c:539 exit_ptrace+0x93/0x160 kernel/ptrace.c:599 forget_original_parent kernel/exit.c:628 [inline] exit_notify kernel/exit.c:668 [inline] do_exit+0x11ce/0x14a0 kernel/exit.c:845 do_group_exit+0xce/0x1a0 kernel/exit.c:922 get_signal+0xf93/0x15d0 kernel/signal.c:2868 arch_do_signal_or_restart+0x8c/0x280 arch/x86/kernel/signal.c:865 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+0x109/0x190 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+0x50/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff8881242e2550 of 8 bytes by task 7592 on cpu 0: ptrace_signal kernel/signal.c:2597 [inline] get_signal+0xc6d/0x15d0 kernel/signal.c:2756 arch_do_signal_or_restart+0x8c/0x280 arch/x86/kernel/signal.c:865 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+0x109/0x190 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+0x50/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0xffff88812aada000 -> 0xffff888102834040 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7592 Comm: syz-executor.3 Not tainted 5.15.0-rc3-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/09/30 13:23 | upstream | 02d5e016800d | 0f01403d | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __ptrace_unlink / get_signal |