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IB/hfi1: Fix to fully initialize send context area 

While handling buffer control MAD, partially initialized
dd->kernel_send_context area may cause potential dereference
of uninitialized pointers. Fix by using kzalloc_node()
instead of kmalloc_node().

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com>
Signed-off-by: Tymoteusz Kielan <tymoteusz.kielan@intel.com>
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Tymoteusz Kielan 2016-07-25 13:38:01 -07:00 committed by Doug Ledford
parent 3210314ad3
commit 1b23f02cf4
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/hfi1/pio.c
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@ -1956,7 +1956,7 @@ int init_pervl_scs(struct hfi1_devdata *dd)
hfi1_init_ctxt(dd->vld[15].sc);
dd->vld[15].mtu = enum_to_mtu(OPA_MTU_2048);
dd->kernel_send_context = kmalloc_node(dd->num_send_contexts *
dd->kernel_send_context = kzalloc_node(dd->num_send_contexts *
sizeof(struct send_context *),
GFP_KERNEL, dd->node);
dd->kernel_send_context[0] = dd->vld[15].sc;