[bluez/bluez] 7d9c6f: emulator: bthost: don't crash on ecred_conn_req wi...

[bluez/bluez] 7d9c6f: emulator: bthost: don't crash on ecred_conn_req wi...

[Pauli Virtanen]

  Branch: refs/heads/1153725
  Home:   https://github.com/bluez/bluez
  Commit: 7d9c6f97282b702a2bf19cff70668183139f159b
      https://github.com/bluez/bluez/commit/7d9c6f97282b702a2bf19cff70668183139f159b
  Author: Pauli Virtanen <pav@iki.fi>
  Date:   2026-08-30 (Sun, 30 Aug 2026)

  Changed paths:
    M emulator/bthost.c

  Log Message:
  -----------
  emulator: bthost: don't crash on ecred_conn_req with too many scid

l2cap_ecred_conn_req() crashes if the request contains more SCID than
specification allows (5).

Respond 0x000C - All connections refused – invalid parameters to such
invalid requests.


  Commit: 80ad2f628f4b568b8167fe763f9721f2f3c26587
      https://github.com/bluez/bluez/commit/80ad2f628f4b568b8167fe763f9721f2f3c26587
  Author: Pauli Virtanen <pav@iki.fi>
  Date:   2026-08-30 (Sun, 30 Aug 2026)

  Changed paths:
    M tools/l2cap-tester.c

  Log Message:
  -----------
  tools/l2cap-tester: add test for too many ECRED deferred sockets

Add test tries to trigger connection with 5+1 ECRED channels, and
require the last connect() shall fail with -EPROTO.  On some kernels
this causes invalid ECRED REQ be sent with 6 SCID, and stack overwrite.

L2CAP Ext-Flowctl Client - Defer limit


Compare: https://github.com/bluez/bluez/compare/7d9c6f97282b%5E...80ad2f628f4b

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