i40e: use the safe hash table iterator when deleting mac filters

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[ Upstream commit 784548c40d ]

This patch replaces hash_for_each function with hash_for_each_safe
when calling  __i40e_del_filter. The hash_for_each_safe function is
the right one to use when iterating over a hash table to safely remove
a hash entry. Otherwise, incorrect values may be read from freed memory.

Detected by CoverityScan, CID 1402048 Read from pointer after free

Signed-off-by: Lihong Yang <lihong.yang@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@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>

...

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Lihong Yang 2017-09-07 08:05:46 -04:00 • committed by Greg Kroah-Hartman

parent 66efe26b0b

commit c817cb56b8

1 changed files with 2 additions and 1 deletions

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drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c

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