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Merge tag 'nfc-fixes-3.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-3.0

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This is an NFC LLCP fix for 3.7 and contains only one patch.

It fixes a potential crash when receiving an LLCP HDLC frame acking a frame
that is not the last sent one. In that case we may dereference an already
freed pointer.
This commit is contained in:
John W. Linville
2012-12-06 14:55:57 -05:00
parent 795e936421 289814918c
commit 55cb0797fa
3 changed files with 10 additions and 9 deletions
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12
drivers/net/wireless/iwlwifi/dvm/rxon.c
View File

@@ -1012,12 +1012,12 @@ static void iwl_calc_basic_rates(struct iwl_priv *priv,
* As a consequence, it's not as complicated as it sounds, just add
* any lower rates to the ACK rate bitmap.
*/
if (IWL_RATE_11M_INDEX < lowest_present_ofdm)
ofdm |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE;
if (IWL_RATE_5M_INDEX < lowest_present_ofdm)
ofdm |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE;
if (IWL_RATE_2M_INDEX < lowest_present_ofdm)
ofdm |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE;
if (IWL_RATE_11M_INDEX < lowest_present_cck)
cck |= IWL_RATE_11M_MASK >> IWL_FIRST_CCK_RATE;
if (IWL_RATE_5M_INDEX < lowest_present_cck)
cck |= IWL_RATE_5M_MASK >> IWL_FIRST_CCK_RATE;
if (IWL_RATE_2M_INDEX < lowest_present_cck)
cck |= IWL_RATE_2M_MASK >> IWL_FIRST_CCK_RATE;
/* 1M already there or needed so always add */
cck |= IWL_RATE_1M_MASK >> IWL_FIRST_CCK_RATE;