Re: F37 kernel 6.0.16/6.0.18 breaking Python tests: Allows to bind a socket twice

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Justin Forbes wrote:

> On Wed, Jan 11, 2023 at 6:53 AM Miro Hrončok <mhroncok(a)redhat.com> wrote:
> 
> This does seem a bug. The big question, is does 6.1 make it go away?
> kernel-6.1.4-200.fc37 is available in koji. The 6.0 series is end of
> support for Fedora, and I expect 6.1.5 to be available as an update
> this week.

I believe that this bug might actually be a security vulnerability and therefore might need to be treated as such, with the usual CVE dance. Look:

https://utcc.utoronto.ca/~cks/space/blog/linux/KernelBindBugIn6016

As mentioned at that link, this could lead to a process unexpectedly listening on 0.0.0.0 (and thus being reachable from outside) instead of listening only on 127.0.0.1 or not listening at all.

-- 
Alexander E. Patrakov
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