[sr-dev] git:4.3:b09ccd2d: mem: f_malloc - properly set empty slot in free hash

[Daniel-Constantin Mierla]

Module: kamailio
Branch: 4.3
Commit: b09ccd2d16982c16babe5ba71c3e7d94bec71706
URL: https://github.com/kamailio/kamailio/commit/b09ccd2d16982c16babe5ba71c3e7d94bec71706

Author: Daniel-Constantin Mierla <miconda at gmail.com>
Committer: Daniel-Constantin Mierla <miconda at gmail.com>
Date: 2015-09-20T22:36:46+02:00

mem: f_malloc - properly set empty slot in free hash

- reported by Juha Heninanen

(cherry picked from commit f6400aa19736e3f6acf00f3c79f5ddaaf2acbcee)

---

Modified: mem/f_malloc.c

---

Diff:  https://github.com/kamailio/kamailio/commit/b09ccd2d16982c16babe5ba71c3e7d94bec71706.diff
Patch: https://github.com/kamailio/kamailio/commit/b09ccd2d16982c16babe5ba71c3e7d94bec71706.patch

---

diff --git a/mem/f_malloc.c b/mem/f_malloc.c
index a62665e..90fa9ca 100644
--- a/mem/f_malloc.c
+++ b/mem/f_malloc.c
@@ -180,7 +180,10 @@ static inline void fm_extract_free(struct fm_block* qm, struct fm_frag* frag)
 	if(frag->prv_free) {
 		frag->prv_free->u.nxt_free = frag->u.nxt_free;
 	} else {
-		qm->free_hash[hash].first = frag->u.nxt_free;
+		if(frag->u.nxt_free!=qm->last_frag)
+			qm->free_hash[hash].first = frag->u.nxt_free;
+		else
+			qm->free_hash[hash].first = NULL;
 	}
 	if(frag->u.nxt_free && frag->u.nxt_free!=qm->last_frag) {
 		frag->u.nxt_free->prv_free = frag->prv_free;