diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2012-03-24 00:59:33 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-25 19:29:58 +0200 |
| commit | 50269e19ad990e79eeda101fc6df80cffd5d4831 (patch) | |
| tree | 903d80ba1b1fc0eb15e122a8c12a72f72e7ed2de /drivers/net/wireless/iwlegacy | |
| parent | gianfar: Fix possible overrun and simplify interrupt name field creation (diff) | |
| download | linux-50269e19ad990e79eeda101fc6df80cffd5d4831.tar.xz linux-50269e19ad990e79eeda101fc6df80cffd5d4831.zip | |
net: add a truesize parameter to skb_add_rx_frag()
skb_add_rx_frag() API is misleading.
Network skbs built with this helper can use uncharged kernel memory and
eventually stress/crash machine in OOM.
Add a 'truesize' parameter and then fix drivers in followup patches.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wireless/iwlegacy')
| -rw-r--r-- | drivers/net/wireless/iwlegacy/3945.c | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlegacy/4965-mac.c | 3 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c index c5b1d199e0bc..b25c01be0d90 100644 --- a/drivers/net/wireless/iwlegacy/3945.c +++ b/drivers/net/wireless/iwlegacy/3945.c @@ -499,7 +499,8 @@ il3945_pass_packet_to_mac80211(struct il_priv *il, struct il_rx_buf *rxb, le32_to_cpu(rx_end->status), stats); skb_add_rx_frag(skb, 0, rxb->page, - (void *)rx_hdr->payload - (void *)pkt, len); + (void *)rx_hdr->payload - (void *)pkt, len, + len); il_update_stats(il, false, fc, len); memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c index 7b54dbb338be..17f1c6853182 100644 --- a/drivers/net/wireless/iwlegacy/4965-mac.c +++ b/drivers/net/wireless/iwlegacy/4965-mac.c @@ -596,7 +596,8 @@ il4965_pass_packet_to_mac80211(struct il_priv *il, struct ieee80211_hdr *hdr, return; } - skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len); + skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len, + len); il_update_stats(il, false, fc, len); memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); |