Tianhua Sun 8dd471b37d hv: fix possible null pointer dereference ...

This patch fix potential null pointer dereference

1, will access null pointer if 'context' is null.
2, if entry already been added to the VM when add
   intx entry for this vm, but parameter virt_pin
   is not equal to entry->virt_sid.intx_id.pin. So
   will saves this entry address to
   vpin_to_pt_entry[entry->virt_sid.intx_id.pin] and
   vpin_to_pt_entry[virt_pin]. In this case, this entry
   will be freed twice.

Tracked-On: #3217
Signed-off-by: Tianhua Sun <tianhuax.s.sun@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

2019-06-11 16:03:04 +08:00

42 KiB

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