"possible deadlock in console_lock_spinning_enable" and "possible deadlock in console_unlock" should be duplicate crash behaviors

From: 慕冬亮
Date: Thu Jan 21 2021 - 00:40:19 EST


Dear kernel developers,

I found that on the syzbot dashboard, “possible deadlock in
console_lock_spinning_enable”[1] and "possible deadlock in
console_unlock"[2] should share the same root cause.

The reasons for the above statement:
1) the stack trace is the same, and this title difference is due to
the inline property of "console_lock_spinning_enable";
2) their PoCs are the same as each other;

If you can have any issues with this statement or our information is
useful to you, please let us know. Thanks very much.

[1] “possible deadlock in console_lock_spinning_enable” -
https://syzkaller.appspot.com/bug?id=2820deb61d92a8d7ab17a56ced58e963e65d76d0
[2] “possible deadlock in console_unlock” -
https://syzkaller.appspot.com/bug?id=39ea6caa479af471183997376dc7e90bc7d64a6a



--
My best regards to you.

No System Is Safe!
Dongliang Mu