network(), syslog(): Fixed a potential crash for TLS destinations during reload
#418
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...t/functional_tests/destination_drivers/network_destination/test_tls_verifier_reload_crash.py
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Signed-off-by: László Várady <laszlo.varady@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com> Signed-off-by: László Várady <laszlo.varady@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
It is possible to keep TLS connections alive during reload. In that case the LogWriter instance is persisted in cfg persist. This LogWriter's signal slot connector wasn't updated based on the new configuration, which could cause a crash. The signal slot connector is updated, so the newly configured verifier is used, instead of the old one. Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
Signed-off-by: Tamás Kosztyu <tamas.kosztyu@axoflow.com>
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| @@ -237,6 +237,14 @@ log_transport_tls_write_method(LogTransport *s, const gpointer buf, gsize buflen | |||
| return -1; | |||
| } | |||
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| TLSSession * | |||
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We should add the very least add an assertion to check if this is indeed a logtransporttls instance
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Fixes syslog-ng/syslog-ng#5018
It is possible to keep TLS connections alive during reload.
In that case the LogWriter instance is persisted in cfg persist.
This LogWriter's signal slot connector wasn't updated based on the new configuration, which could cause a crash.
The signal slot connector is updated, so the newly configured verifier is used, instead of the old one.
Note that the fix in syslog-ng/syslog-ng#5087 has a security issue, as in that PR, the connector's lifetime is extended, but the verifier plugins are deregistered during reload, which silently disables all TLS verifiers without the user knowing.