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[tor-commits] [tor/main] Fix NULL pointer deref in logs



commit 338d00ba924a3884900bac425b35b6a2320da306
Author: Mike Perry <mikeperry-git@xxxxxxxxxxxxxx>
Date:   Wed Oct 13 21:06:33 2021 +0000

    Fix NULL pointer deref in logs
---
 src/core/or/congestion_control_common.c   | 5 ++---
 src/core/or/congestion_control_nola.c     | 3 ++-
 src/core/or/congestion_control_vegas.c    | 3 ++-
 src/core/or/congestion_control_westwood.c | 3 ++-
 4 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/core/or/congestion_control_common.c b/src/core/or/congestion_control_common.c
index e316b631d1..6fa3bb9a11 100644
--- a/src/core/or/congestion_control_common.c
+++ b/src/core/or/congestion_control_common.c
@@ -1040,9 +1040,8 @@ congestion_control_update_circuit_bdp(congestion_control_t *cc,
                  "%"PRIu64", "
                  "%"PRIu64", "
                  "%"PRIu64". ",
-                 // XXX: actually, is this p_chan here? This is
-                 // an or_circuit (exit or onion)
-                 circ->n_chan->global_identifier, circ->n_circ_id,
+                 CONST_TO_OR_CIRCUIT(circ)->p_chan->global_identifier,
+                 CONST_TO_OR_CIRCUIT(circ)->p_circ_id,
                  cc->min_rtt_usec/1000,
                  curr_rtt_usec/1000,
                  cc->ewma_rtt_usec/1000,
diff --git a/src/core/or/congestion_control_nola.c b/src/core/or/congestion_control_nola.c
index 09f88d4699..52d41157a2 100644
--- a/src/core/or/congestion_control_nola.c
+++ b/src/core/or/congestion_control_nola.c
@@ -111,7 +111,8 @@ congestion_control_nola_process_sendme(congestion_control_t *cc,
                "INFL: %"PRIu64", "
                "NCCE: %"PRIu64", "
                "SS: %d",
-               circ->n_chan->global_identifier, circ->n_circ_id,
+             CONST_TO_OR_CIRCUIT(circ)->p_chan->global_identifier,
+             CONST_TO_OR_CIRCUIT(circ)->p_circ_id,
              cc->cwnd,
              cc->inflight,
              cc->next_cc_event,
diff --git a/src/core/or/congestion_control_vegas.c b/src/core/or/congestion_control_vegas.c
index e7ed838478..d823a5068e 100644
--- a/src/core/or/congestion_control_vegas.c
+++ b/src/core/or/congestion_control_vegas.c
@@ -255,7 +255,8 @@ congestion_control_vegas_process_sendme(congestion_control_t *cc,
                  "QUSE: %"PRIu64", "
                  "NCCE: %"PRIu64", "
                  "SS: %d",
-                 circ->n_chan->global_identifier, circ->n_circ_id,
+               CONST_TO_OR_CIRCUIT(circ)->p_chan->global_identifier,
+               CONST_TO_OR_CIRCUIT(circ)->p_circ_id,
                cc->cwnd,
                cc->inflight,
                vegas_bdp_mix(cc),
diff --git a/src/core/or/congestion_control_westwood.c b/src/core/or/congestion_control_westwood.c
index 4b24234212..357cdeb3b9 100644
--- a/src/core/or/congestion_control_westwood.c
+++ b/src/core/or/congestion_control_westwood.c
@@ -213,7 +213,8 @@ congestion_control_westwood_process_sendme(congestion_control_t *cc,
                  "WRTT: %"PRIu64", "
                  "WSIG: %"PRIu64", "
                  "SS: %d",
-               circ->n_chan->global_identifier, circ->n_circ_id,
+               CONST_TO_OR_CIRCUIT(circ)->p_chan->global_identifier,
+               CONST_TO_OR_CIRCUIT(circ)->p_circ_id,
                cc->cwnd,
                cc->inflight,
                cc->next_cc_event,



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