diff options
| author | Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com> | 2019-11-13 21:51:19 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-14 01:28:30 +0300 |
| commit | 3128aad163d36d99247fc76b4efbbba2d5465cc4 (patch) | |
| tree | b3810c43b5f2450619555e48fd9cd64d9d296479 /drivers/net/ethernet/broadcom | |
| parent | 75a1ccfe6c726ba33a2f9859d39deb2eba620583 (diff) | |
| download | linux-3128aad163d36d99247fc76b4efbbba2d5465cc4.tar.xz | |
bnxt_en: Fix array overrun in bnxt_fill_l2_rewrite_fields().
Fix the array overrun while keeping the eth_addr and eth_addr_mask
pointers as u16 to avoid unaligned u16 access. These were overlooked
when modifying the code to use u16 pointer for proper alignment.
Fixes: 90f906243bf6 ("bnxt_en: Add support for L2 rewrite")
Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c index 174412a55e53..0cc6ec51f45f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c @@ -166,8 +166,8 @@ bnxt_fill_l2_rewrite_fields(struct bnxt_tc_actions *actions, actions->l2_rewrite_dmac[j] = cpu_to_be16(*(p + j)); } - if (!is_wildcard(ð_addr_mask[ETH_ALEN], ETH_ALEN)) { - if (!is_exactmatch(ð_addr_mask[ETH_ALEN], ETH_ALEN)) + if (!is_wildcard(ð_addr_mask[ETH_ALEN / 2], ETH_ALEN)) { + if (!is_exactmatch(ð_addr_mask[ETH_ALEN / 2], ETH_ALEN)) return -EINVAL; /* FW expects smac to be in u16 array format */ p = ð_addr[ETH_ALEN / 2]; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h index 286754903543..10c62b094914 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.h @@ -64,9 +64,9 @@ struct bnxt_tc_tunnel_key { #define bnxt_eth_addr_key_mask_invalid(eth_addr, eth_addr_mask) \ ((is_wildcard(&(eth_addr)[0], ETH_ALEN) && \ - is_wildcard(&(eth_addr)[ETH_ALEN], ETH_ALEN)) || \ + is_wildcard(&(eth_addr)[ETH_ALEN / 2], ETH_ALEN)) || \ (is_wildcard(&(eth_addr_mask)[0], ETH_ALEN) && \ - is_wildcard(&(eth_addr_mask)[ETH_ALEN], ETH_ALEN))) + is_wildcard(&(eth_addr_mask)[ETH_ALEN / 2], ETH_ALEN))) struct bnxt_tc_actions { u32 flags; |