Thanks Sanjeeva,

This is a helpful deep analysis already!

But this part makes me wonder and stop:

> If possible, please forward to upstream QEMU maintainers or reference
net_tx_pkt.c and e1000e_core.c in the bug.

Usually the affected report the cases upstream - because they would not
fall apart on the first question saying "well it isn't my case I can't
answer". Especially with a setup like yours, not everyone even has the
ESXi environment needed to reproduce it is important that you can be
part of the conversation.

Same with patches, especially due to copyright, ownership and such. They
would usually be sent/suggested there by the author. Your patch comes
without any of that - someone forwarding this for you would be unable to
declare authorship. We see a name here, but your account has "No public
address provided." in launchpad, so even someone that would forward it
for you couldn't do so properly attributing it to you.

Patch submission for qemu is still using email [1]. But if you are
uncomfortable with that the project is somewhat open to more: you can
report bugs at [2] and add the suggestion there. The latter even has a
test pipeline which might help to get some confidence [3]

Getting an alignment with upstream on this not only gives it more review
and confidence, it also helps to keep the package from diverging too far
to stay maintainable. If you end up filing a bug or starting an email
submission please report here so we can link and track it.

[1]: 
https://www.qemu.org/docs/master/devel/submitting-a-patch.html#submitting-your-patches
[2]: https://gitlab.com/qemu-project/qemu/-/work_items
[3]: 
https://www.qemu.org/docs/master/devel/submitting-a-patch.html#test-your-patches

** Changed in: qemu (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/2158017

Title:
  qemu e1000e transmit path overwrites IPv4 total length on short padded
  TCP ACKs, causing TLS reset

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