Re: https://bugzilla.kernel.org/show_bug.cgi?id=207773

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Am 28.01.21 um 00:13 schrieb Jozsef Kadlecsik:
Hi,

On Wed, 27 Jan 2021, Jozsef Kadlecsik wrote:

On Wed, 27 Jan 2021, Reindl Harald wrote:

for the sake of god may someone look at this?
https://bugzilla.kernel.org/show_bug.cgi?id=207773

Could you send your iptables rules and at least the set definitions
without the set contents? I need to reproduce the issue.

Checking your rules, you have got a recent match in which you use both the
--reap and --update flags.

which makes sense

However, as far as I see the code leaves the
possibility open that the recent entry to be updated is reaped, which
then leads to the crash.

thanks for checking

The following patch should fix the issue - however, I could not test it

hopefully this makes it into a near future kernel update, i rely on distribution packages and Fedora is pretty quick






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