[5.6,014/177] net: qrtr: Fix passing invalid reference to qrtr_local_enqueue()
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Message ID 20200601174049.840281466@linuxfoundation.org
State New
Headers show
Series
  • Untitled series #446659
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Commit Message

Greg Kroah-Hartman June 1, 2020, 5:52 p.m. UTC
From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

[ Upstream commit d28ea1fbbf437054ef339afec241019f2c4e2bb6 ]

Once the traversal of the list is completed with list_for_each_entry(),
the iterator (node) will point to an invalid object. So passing this to
qrtr_local_enqueue() which is outside of the iterator block is erroneous
eventhough the object is not used.

So fix this by passing NULL to qrtr_local_enqueue().

Fixes: bdabad3e363d ("net: Add Qualcomm IPC router")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/qrtr/qrtr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -855,7 +855,7 @@  static int qrtr_bcast_enqueue(struct qrt
 	}
 	mutex_unlock(&qrtr_node_lock);
 
-	qrtr_local_enqueue(node, skb, type, from, to);
+	qrtr_local_enqueue(NULL, skb, type, from, to);
 
 	return 0;
 }