posix: Fix null pointer dererfence

CID: 1124799 1214618

Change-Id: Iff05180983fe9600be0a2ce015a137e4efb8f533
updates: bz#789278
Signed-off-by: Susant Palai <spalai@redhat.com>

2 files changed, 13 insertions, 0 deletions

diff --git a/xlators/storage/posix/src/posix-aio.c b/xlators/storage/posix/src/posix-aio.c
index cf570d5be41..df32ffdd5c2 100644
--- a/xlators/storage/posix/src/posix-aio.c
+++ b/xlators/storage/posix/src/posix-aio.c
@@ -266,6 +266,12 @@ posix_aio_writev_complete(struct posix_aio_cb *paiocb, int res, int res2)
     struct posix_private *priv = NULL;
     fd_t *fd = NULL;
 
+    if (!paiocb) {
+        op_ret = -1;
+        op_errno = EINVAL;
+        goto out;
+    }
+
     frame = paiocb->frame;
     this = frame->this;
     priv = this->private;
diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
index 2f541ba13b3..8906584684d 100644
--- a/xlators/storage/posix/src/posix-inode-fd-ops.c
+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
@@ -2709,6 +2709,13 @@ posix_links_in_same_directory(char *dirpath, int count, inode_t *leaf_inode,
                            entry->d_name);
 
             gf_entry = gf_dirent_for_name(entry->d_name);
+            if (!gf_entry) {
+                gf_msg(this->name, GF_LOG_ERROR, ENOMEM, 0, "gf_entry is NULL");
+                op_ret = -1;
+                *op_errno = ENOMEM;
+                inode_unref(loc.inode);
+                goto out;
+            }
             gf_entry->inode = inode_ref(leaf_inode);
             gf_entry->dict = posix_xattr_fill(this, temppath, &loc, NULL, -1,
                                               xdata, NULL);