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res_stasis_snoop: Fix snoop crash 

Added NULL pointer check and channel lock to prevent resource release
while the chanspy is processing.

ASTERISK-29604

Change-Id: Ibdc675f98052da32333b19685b1708a3751b6d24
This commit is contained in:
sungtae kim 2023-01-04 21:35:20 +09:00 committed by Friendly Automation
parent 56051d1ac5
commit f99849f8d5
1 changed files with 7 additions and 3 deletions
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10
res/res_stasis_snoop.c
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@ -135,9 +135,13 @@ static void publish_chanspy_message(struct stasis_app_snoop *snoop, int start)
}
ast_multi_channel_blob_add_channel(payload, "spyer_channel", snoop_snapshot);
spyee_snapshot = ast_channel_snapshot_get_latest(ast_channel_uniqueid(snoop->spyee_chan));
if (spyee_snapshot) {
ast_multi_channel_blob_add_channel(payload, "spyee_channel", spyee_snapshot);
if (snoop->spyee_chan) {
ast_channel_lock(snoop->spyee_chan);
spyee_snapshot = ast_channel_snapshot_get_latest(ast_channel_uniqueid(snoop->spyee_chan));
ast_channel_unlock(snoop->spyee_chan);
if (spyee_snapshot) {
ast_multi_channel_blob_add_channel(payload, "spyee_channel", spyee_snapshot);
}
}
message = stasis_message_create(type, payload);