[Bug 289120] A time-of-check to time-of-use race exists in gpioc_kqread() of GPIO subsystem

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 289120] A time-of-check to time-of-use race exists in gpioc_kqread() of GPIO subsystem"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 30 Sep 2025 11:05:02 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289120

--- Comment #8 from Ahmad Khalifa <vexeduxr@FreeBSD.org> ---
(In reply to Qiu-ji Chen from comment #7)

Hmm, that does seem odd at first glance, especially since the man page implies
that only f_detach is called without the lock held.

Mark: Is that intentional?

Thanks for your in depth review of this.

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