[qt/qt/qtserialport]: Summary of bulk changes made

Git repository change summary for qt/qt/qtserialport
Pushed by mirror-service into branch '6.12'.
Changed from fed72686442aeaeb553904cc2bc7faec47555832 to 05285ae49f6efd4b6b4bd3d1a0bb70b9b9212987
Acknowledgement was received that this change introduces only existing code that has been pushed to another public open source repository.

This change contains the following new commits:

Git commit ead68606c3eb5d0005d0d4a7ddd684f5a9def4ea by Qt Cherry-pick Bot (on behalf of Ivan Solovev) on 06/08/2026 at 10:32..
QSerialPortInfo FreeBSD: improve error handling in OID parsing

The sysctl() call can theoretically return a zero length or a length
that does not represent a whole amount of ints. In such case, the next
sysctl() would have accessed the first element of an empty array or
passed an incorrect length due to truncating. In both cases that could
lead to accessing the memory past the end of the allocated QList.

Note that it is unlikely to happen in practice, unless there's a bug
in the kernel, because on success at least one component should be
available.

Still, adding these guards won't hurt. But I'm not picking this patch
to ESM branches.

Task-number: QTBUG-144899
Pick-to: 6.11 6.8
Change-Id: I95d00da9eaa2e448283f810ae67bba48cf822af1
Reviewed-by: Tatiana Borisova <[email protected]>
(cherry picked from commit ef91504c20fc99a84f813c84c4380242279aae4b)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtserialport/-/commit/ead68606c3eb5d0005d0d4a7ddd684f5a9def4ea

Git commit 233a80b14d246f33613ba1e389ad2409a2e15281 by Qt Cherry-pick Bot (on behalf of Ivan Solovev) on 06/08/2026 at 10:32..
QSerialPort docs: clarify negative values in set{Read,Write}BufferSize

Generally speaking, passing negative value as a buffer size does not
make sense. However, in practice negative parameters are handled
differently for read and write buffers.
Document it to avoid confusion.

Task-number: QTBUG-144899
Pick-to: 6.11
Change-Id: Ic608ebb00b9fe44c1e53f61d9e7172907b9e3110
Reviewed-by: Tatiana Borisova <[email protected]>
(cherry picked from commit 37ab9f41f0d164791757aa050e114b537c34fda1)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtserialport/-/commit/233a80b14d246f33613ba1e389ad2409a2e15281

Git commit 05285ae49f6efd4b6b4bd3d1a0bb70b9b9212987 by Qt Cherry-pick Bot (on behalf of Ivan Solovev) on 06/08/2026 at 10:32..
QSerialPortInfo FreeBSD: avoid variable shadowing

The availablePorts() implementation has two loops over nodes, where
the second one shadows the outer variable:

  for (const NodeInfo &node : nodes) {
    // ...
    for (const NodeInfo &node : nodes) {
      // ...
    }
  }

Rename the inner variable to descriptionNode, because it's used to
populate the device description and manufacturer information.

Change-Id: I5c1f89ac49b118bcb2c78f4c2bc31e4410f89a46
Reviewed-by: Tatiana Borisova <[email protected]>
(cherry picked from commit e72e30c43bff184d404c438e12d86fc731eee4ca)
Reviewed-by: Qt Cherry-pick Bot <[email protected]>
https://invent.kde.org/qt/qt/qtserialport/-/commit/05285ae49f6efd4b6b4bd3d1a0bb70b9b9212987