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| author |   Xiaomeng Tong <xiam0nd.tong@gmail.com> | 2022-05-10 13:48:46 -0700 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-05-11 15:19:28 -0700 |
| commit | 3f95a7472d14abef284d8968734fe2ae7ff4845f (patch) | |
| tree | 7591c2ad116993ed37a3ce83a99f6fbbc5bde140 /net | |
| parent | net/sched: act_pedit: really ensure the skb is writable (diff) | |
| download | linux-dev-3f95a7472d14abef284d8968734fe2ae7ff4845f.tar.xz linux-dev-3f95a7472d14abef284d8968734fe2ae7ff4845f.zip | |
i40e: i40e_main: fix a missing check on list iterator
The bug is here:
ret = i40e_add_macvlan_filter(hw, ch->seid, vdev->dev_addr, &aq_err);
The list iterator 'ch' will point to a bogus position containing
HEAD if the list is empty or no element is found. This case must
be checked before any use of the iterator, otherwise it will
lead to a invalid memory access.
To fix this bug, use a new variable 'iter' as the list iterator,
while use the origin variable 'ch' as a dedicated pointer to
point to the found element.
Cc: stable@vger.kernel.org
Fixes: 1d8d80b4e4ff6 ("i40e: Add macvlan support on i40e")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20220510204846.2166999-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions