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================================================================== BUG: KCSAN: data-race in __tty_hangup / do_select write to 0xffff8880a9cebe28 of 8 bytes by task 14852 on cpu 1: __tty_hangup+0x16a/0x460 drivers/tty/tty_io.c:615 tty_vhangup+0x21/0x30 drivers/tty/tty_io.c:697 pty_close+0x25b/0x2d0 drivers/tty/pty.c:79 tty_release+0x285/0x910 drivers/tty/tty_io.c:1679 __fput+0x1e1/0x520 fs/file_table.c:280 ____fput+0x1f/0x30 fs/file_table.c:313 task_work_run+0xf6/0x130 kernel/task_work.c:113 get_signal+0x12c3/0x1320 kernel/signal.c:2528 do_signal+0x2f/0x6c0 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x250/0x2c0 arch/x86/entry/common.c:159 prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline] syscall_return_slowpath arch/x86/entry/common.c:274 [inline] do_syscall_64+0x353/0x370 arch/x86/entry/common.c:300 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff8880a9cebe28 of 8 bytes by task 14856 on cpu 0: vfs_poll include/linux/poll.h:88 [inline] do_select+0x796/0x1020 fs/select.c:534 core_sys_select+0x381/0x550 fs/select.c:677 do_pselect.constprop.0+0x11d/0x160 fs/select.c:759 __do_sys_pselect6 fs/select.c:784 [inline] __se_sys_pselect6 fs/select.c:769 [inline] __x64_sys_pselect6+0x12e/0x170 fs/select.c:769 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 14856 Comm: syz-executor.0 Not tainted 5.4.0-rc7+ #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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2019/11/19 22:13 | https://github.com/google/ktsan.git kcsan | 5863cc791e4c | 432c7650 | .config | console log | report | ci2-upstream-kcsan-gce |