Module: kamailio
Branch: master
Commit: 7dd643a88fd7944ee86b795298c76e6d5fd58b8f
URL: 
https://github.com/kamailio/kamailio/commit/7dd643a88fd7944ee86b795298c76e6d5fd58b8f

Author: Daniel-Constantin Mierla <[email protected]>
Committer: Daniel-Constantin Mierla <[email protected]>
Date: 2021-04-08T09:36:49+02:00

dlgs: safety check for accessing next field

---

Modified: src/modules/dlgs/dlgs_records.c

---

Diff:  
https://github.com/kamailio/kamailio/commit/7dd643a88fd7944ee86b795298c76e6d5fd58b8f.diff
Patch: 
https://github.com/kamailio/kamailio/commit/7dd643a88fd7944ee86b795298c76e6d5fd58b8f.patch

---

diff --git a/src/modules/dlgs/dlgs_records.c b/src/modules/dlgs/dlgs_records.c
index 1f6af22ba3..d3084084d5 100644
--- a/src/modules/dlgs/dlgs_records.c
+++ b/src/modules/dlgs/dlgs_records.c
@@ -970,7 +970,9 @@ void dlgs_ht_timer(unsigned int ticks, void *param)
                                                it->prev = NULL;
                                        }
                                } else {
-                                       ite->prev->next = it;
+                                       if(ite->prev) {
+                                               ite->prev->next = it;
+                                       }
                                        if(it!=NULL) {
                                                it->prev = ite->prev;
                                        }


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