syzbot |
sign-in | mailing list | source | docs |
| 🐞 Open [979] ≡ Subsystems 🐞 Fixed [5235] 🐞 Invalid [12494] ⬇ Missing Backports [83] 📈 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 __fput / ep_remove fs | 1 | 1091d | 1091d | 0/26 | auto-closed as invalid on 2021/06/02 19:47 | |||
| upstream | KCSAN: data-race in __fput / ep_remove (3) fs | 1 | 439d | 439d | 0/26 | auto-obsoleted due to no activity on 2023/04/06 07:53 |
================================================================== BUG: KCSAN: data-race in __fput / ep_remove write to 0xffff888149d7fcd0 of 8 bytes by task 1950 on cpu 1: ep_remove+0x310/0x360 fs/eventpoll.c:704 ep_free+0x18b/0x210 fs/eventpoll.c:778 ep_eventpoll_release+0x2e/0x40 fs/eventpoll.c:795 __fput+0x292/0x510 fs/file_table.c:317 ____fput+0x11/0x20 fs/file_table.c:350 task_work_run+0x8e/0x110 kernel/task_work.c:164 get_signal+0xeca/0x1020 kernel/signal.c:2641 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:867 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888149d7fcd0 of 8 bytes by task 1894 on cpu 0: eventpoll_release include/linux/eventpoll.h:45 [inline] __fput+0x20b/0x510 fs/file_table.c:308 ____fput+0x11/0x20 fs/file_table.c:350 task_work_run+0x8e/0x110 kernel/task_work.c:164 get_signal+0xeca/0x1020 kernel/signal.c:2641 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:867 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0xffff8881049243f0 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1894 Comm: syz-executor.1 Not tainted 5.18.0-rc7-syzkaller-00121-g3d7285a335ed-dirty #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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022/05/21 02:32 | upstream | 3d7285a335ed | bd37ad7e | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __fput / ep_remove | |||
| 2022/04/23 02:43 | upstream | d569e86915b7 | 131df97d | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in __fput / ep_remove |