4.4-stable review patch. If anyone has any objections, please let me know.
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From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 18eb86362a52f0af933cc0fd5e37027317eb2d1c ]
Check memory allocation failures and return -ENOMEM in such cases, as already done for other memory allocations in this function.
This avoids NULL pointers dereference.
Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr Tested-by: Aaron Brown <aaron.f.brown@intel.com Acked-by: PJ Waskiewicz peter.waskiewicz.jr@intel.com Signed-off-by: Jeff Kirsher jeffrey.t.kirsher@intel.com Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/intel/igb/igb_main.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3005,6 +3005,8 @@ static int igb_sw_init(struct igb_adapte /* Setup and initialize a copy of the hw vlan table array */ adapter->shadow_vfta = kcalloc(E1000_VLAN_FILTER_TBL_SIZE, sizeof(u32), GFP_ATOMIC); + if (!adapter->shadow_vfta) + return -ENOMEM;
/* This call may decrease the number of queues */ if (igb_init_interrupt_scheme(adapter, true)) {