[Bugs] [Bug 1749369] Segmentation fault occurs while truncate file

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1749369



--- Comment #1 from evangelos <vpolakis at gmail.com> ---
Would something like below enough ?

diff --git a/libglusterfs/src/mem-pool.c b/libglusterfs/src/mem-pool.c
index cff9632..fad6a2c 100644
--- a/libglusterfs/src/mem-pool.c
+++ b/libglusterfs/src/mem-pool.c
@@ -863,6 +863,13 @@ mem_put(void *ptr)
         /* Not one of ours; don't touch it. */
         return;
     }
+
+    if(!hdr->pool_list){
+        gf_msg_callingfn("mem-pool", GF_LOG_ERROR, EINVAL, LG_MSG_INVALID_ARG,
+                        "invalid argument hdr->pool_list NULL");
+        return;
+    }
+
     pool_list = hdr->pool_list;
     pt_pool = &pool_list->pools[hdr->power_of_two - POOL_SMALLEST];

this (as far as i understood but please correct me) this allocation is for the
inode that shouldn't be released unless kernel send the forget (rm/unlint etc).

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