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| Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
|---|---|---|---|---|---|---|---|---|---|
| upstream | KCSAN: data-race in __ep_remove / __fput (3) fs | 1 | 149d | 149d | 0/27 | auto-obsoleted due to no activity on 2024/03/14 21:07 | |||
| upstream | KCSAN: data-race in __ep_remove / __fput fs | 1 | 377d | 377d | 0/27 | auto-obsoleted due to no activity on 2023/07/30 19:06 | |||
| upstream | KCSAN: data-race in __ep_remove / __fput (4) fs | 1 | 5d16h | 2d17h | 0/27 | upstream: reported on 2024/07/04 14:38 |
================================================================== BUG: KCSAN: data-race in __ep_remove / __fput write to 0xffff8881036624d0 of 8 bytes by task 21030 on cpu 1: __ep_remove+0x3b4/0x440 fs/eventpoll.c:744 ep_remove_safe fs/eventpoll.c:782 [inline] ep_clear_and_put+0x158/0x250 fs/eventpoll.c:818 ep_eventpoll_release+0x32/0x40 fs/eventpoll.c:834 __fput+0x303/0x600 fs/file_table.c:384 ____fput+0x15/0x20 fs/file_table.c:412 task_work_run+0x135/0x1a0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd1/0xe0 kernel/entry/common.c:171 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff8881036624d0 of 8 bytes by task 21027 on cpu 0: eventpoll_release include/linux/eventpoll.h:45 [inline] __fput+0x280/0x600 fs/file_table.c:375 ____fput+0x15/0x20 fs/file_table.c:412 task_work_run+0x135/0x1a0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xd1/0xe0 kernel/entry/common.c:171 exit_to_user_mode_prepare+0x6c/0xb0 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x26/0x140 kernel/entry/common.c:297 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0xffff888123f6cd60 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 21027 Comm: syz-executor.0 Not tainted 6.5.0-rc4-syzkaller-00227-g024ff300db33 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 ==================================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023/08/05 12:43 | upstream | 024ff300db33 | 4ffcc9ef | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __ep_remove / __fput |