[Bug libc/20975] Deferred cancellation triggers in __check_pf and looses lock leading to deadlock.

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=20975

Florian Weimer <fweimer at redhat dot com> changed:

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                 CC|                            |fweimer at redhat dot com

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
Do you have a test case for this?

Netlink is de-facto non-blocking, so we should use system calls which are not
cancellation points, without a cancellation handler.

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