[OpenSIPS-Devel] [OpenSIPS/opensips] 6fac45: b2b_sdp_demux: fix possible invalid memory access

[Răzvan Crainea]

  Branch: refs/heads/3.3
  Home:   https://github.com/OpenSIPS/opensips
  Commit: 6fac45d4b900666f79c60e8b0556f992ac862410
      https://github.com/OpenSIPS/opensips/commit/6fac45d4b900666f79c60e8b0556f992ac862410
  Author: Razvan Crainea <razvan at opensips.org>
  Date:   2022-08-23 (Tue, 23 Aug 2022)

  Changed paths:
    M modules/b2b_sdp_demux/b2b_sdp_demux.c

  Log Message:
  -----------
  b2b_sdp_demux: fix possible invalid memory access

Prevent free-then-use error when b2b_key cannot be copied in shm.

Thanks go to Suchi Sahoo from Five9 for reporting it

(cherry picked from commit d9085641758e4a0b9dcf143941c945a150a63665)