Subj : Re: Tutorial for rookies
To   : tenser
From : N1uro
Date : Mon Oct 11 2021 10:45 pm

Hello tenser;

-=> tenser wrote to N1uro <=-

 te> What I see is modification to the stack based on incremental
 te> updates elsewhere in the kernel.  You had said that there were
 te> two or so outstanding issues that were particularly problematic,
 te> though in exactly what way or whether they prevented Linux
 te> kernel AX.25 from working at all was not specified.,

 te> So I see activity, and my setup works.  Hardly proof, but given
 te> that these issues you referred to don't seem to be tracked
 te> anywhere and we have empirical evidence that the Linux AX.25
 te> stack works, and given that your answer to questions about the
 te> state of things are pretty light on details, one wonders whether
 te> these things are still problems -- indeed, if they ever were at
 te> all.

There's stale socket bugs, critical kernel bugs that can render a box totally
useless and other bugs. For me to list these bugs in specific for hams would
be completely counter productive. Any cracker could then own your license.
Basic ones have been discussed in linux-hams and that's enough. If you run
something such as LinBPQ or JNOS2 you are not affected because you are NOT
using the native linux protocol stack. CVE refuses to post any critical but
known bugs with Winlink for the same reasons - it'd be counterproductive.

 te> Ah, now we're getting somewhere: enough information to locate
 te> a patch!  I see that Marius Petrescu lists patched copies of
 te> Linux AX.25 for download on his web site, and he describes a
 te> patch in ax25_subr.c, adding an 'else' at the end of
 te> `ax25_disconnect`.  Immediately obvious is that it does not
 te> follow Linux kernel style.  It's also no immediately clear
 te> that the patch is correct, but without knowing precisely what
 te> the problem is in a little more detail, it's hard to tell.
 te> Again, what's the actual bug here?

He described it perfectly clear, and it's been discussed on the URONode
support list. Just because you don't see it or refuse to review the
threads on the URONode list or elsewhere doesn't mean it does not exist.
However considering what you appear to keep yourself blinded to, might I
suggest Windows and BPQ32?

.... My uncle crashed his car into a lemon tree. He's still bitter and twisted.
--- MultiMail/Linux v0.52
 * Origin: Carnage - risen from the dead now on SBBS (21:4/107)

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