Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in n_tty_receive_char_inline / n_tty_write serial | 1 | 1092d | 1092d | 0/26 | auto-closed as invalid on 2021/05/17 09:21 |
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Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KCSAN: data-race in n_tty_receive_char_inline / n_tty_write serial | 1 | 1092d | 1092d | 0/26 | auto-closed as invalid on 2021/05/17 09:21 |
================================================================== BUG: KCSAN: data-race in n_tty_receive_char_inline / n_tty_write write to 0xffffc90000339028 of 8 bytes by task 17107 on cpu 0: commit_echoes drivers/tty/n_tty.c:777 [inline] n_tty_receive_char_inline+0x4d8/0x680 drivers/tty/n_tty.c:1418 n_tty_receive_buf_standard drivers/tty/n_tty.c:1580 [inline] __receive_buf drivers/tty/n_tty.c:1643 [inline] n_tty_receive_buf_common+0x1893/0x1e20 drivers/tty/n_tty.c:1740 n_tty_receive_buf2+0x2e/0x40 drivers/tty/n_tty.c:1775 tty_ldisc_receive_buf+0x5b/0xf0 drivers/tty/tty_buffer.c:461 tty_port_default_receive_buf+0x54/0x80 drivers/tty/tty_port.c:39 receive_buf drivers/tty/tty_buffer.c:481 [inline] flush_to_ldisc+0x1c5/0x2c0 drivers/tty/tty_buffer.c:533 process_one_work+0x3e9/0x8f0 kernel/workqueue.c:2275 worker_thread+0x636/0xae0 kernel/workqueue.c:2421 kthread+0x1d0/0x1f0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 read to 0xffffc90000339028 of 8 bytes by task 28365 on cpu 1: process_echoes drivers/tty/n_tty.c:803 [inline] n_tty_write+0x137/0xaf0 drivers/tty/n_tty.c:2340 do_tty_write drivers/tty/tty_io.c:1043 [inline] file_tty_write+0x409/0x660 drivers/tty/tty_io.c:1133 tty_write+0x24/0x30 drivers/tty/tty_io.c:1140 call_write_iter include/linux/fs.h:2114 [inline] do_iter_readv_writev+0x2cb/0x360 fs/read_write.c:740 do_iter_write+0x112/0x4c0 fs/read_write.c:866 vfs_writev fs/read_write.c:939 [inline] do_writev+0x1e0/0x400 fs/read_write.c:982 __do_sys_writev fs/read_write.c:1055 [inline] __se_sys_writev fs/read_write.c:1052 [inline] __x64_sys_writev+0x41/0x50 fs/read_write.c:1052 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 28365 Comm: syz-executor.5 Not tainted 5.13.0-rc2-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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/05/23 20:42 | upstream | 4d7620341eda | 3c7fef33 | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in n_tty_receive_char_inline / n_tty_write |