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[syzbot] [fs?] KCSAN: data-race in __ep_remove / __fput (5) | 0 (1) | 2024/09/20 22:46 |
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[syzbot] [fs?] KCSAN: data-race in __ep_remove / __fput (5) | 0 (1) | 2024/09/20 22:46 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in __ep_remove / __fput (3) fs | 1 | 225d | 225d | 0/28 | auto-obsoleted due to no activity on 2024/03/14 21:07 | |||
upstream | KCSAN: data-race in __ep_remove / __fput fs | 1 | 453d | 453d | 0/28 | auto-obsoleted due to no activity on 2023/07/30 19:06 | |||
upstream | KCSAN: data-race in __ep_remove / __fput (2) fs | 1 | 412d | 412d | 0/28 | auto-obsoleted due to no activity on 2023/09/09 12:48 | |||
upstream | KCSAN: data-race in __ep_remove / __fput (4) fs | 1 | 81d | 78d | 0/28 | auto-obsoleted due to no activity on 2024/08/05 15:52 |
================================================================== BUG: KCSAN: data-race in __ep_remove / __fput write to 0xffff888117ce4690 of 8 bytes by task 3797 on cpu 1: __ep_remove+0x3c8/0x450 fs/eventpoll.c:826 ep_remove_safe fs/eventpoll.c:864 [inline] ep_clear_and_put+0x158/0x260 fs/eventpoll.c:900 ep_eventpoll_release+0x2c/0x40 fs/eventpoll.c:937 __fput+0x17a/0x6d0 fs/file_table.c:431 ____fput+0x1c/0x30 fs/file_table.c:459 task_work_run+0x13a/0x1a0 kernel/task_work.c:228 get_signal+0xf87/0x1100 kernel/signal.c:2690 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x59/0x130 kernel/entry/common.c:218 do_syscall_64+0xd6/0x1c0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888117ce4690 of 8 bytes by task 3795 on cpu 0: eventpoll_release include/linux/eventpoll.h:45 [inline] __fput+0xee/0x6d0 fs/file_table.c:422 ____fput+0x1c/0x30 fs/file_table.c:459 task_work_run+0x13a/0x1a0 kernel/task_work.c:228 get_signal+0xf87/0x1100 kernel/signal.c:2690 arch_do_signal_or_restart+0x95/0x4b0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x59/0x130 kernel/entry/common.c:218 do_syscall_64+0xd6/0x1c0 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0xffff888103209140 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 3795 Comm: syz.3.142 Not tainted 6.11.0-syzkaller-07341-gbaeb9a7d8b60 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/09/20 15:42 | upstream | baeb9a7d8b60 | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __ep_remove / __fput |