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We have a single bugfix for an invalid memory read.

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Merge tag 'mac80211-for-davem-2015-08-14' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
We have a single bugfix for an invalid memory read.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2015-08-17 14:03:10 -07:00
parent 2902bc66fa f5eeb5fa19
commit a27cc68b9b
1 changed files with 6 additions and 5 deletions
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11
net/mac80211/rc80211_minstrel.c
View file

@ -92,14 +92,15 @@ int minstrel_get_tp_avg(struct minstrel_rate *mr, int prob_ewma)
static inline void
minstrel_sort_best_tp_rates(struct minstrel_sta_info *mi, int i, u8 *tp_list)
{
int j = MAX_THR_RATES;
struct minstrel_rate_stats *tmp_mrs = &mi->r[j - 1].stats;
int j;
struct minstrel_rate_stats *tmp_mrs;
struct minstrel_rate_stats *cur_mrs = &mi->r[i].stats;
while (j > 0 && (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) >
minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))) {
j--;
for (j = MAX_THR_RATES; j > 0; --j) {
tmp_mrs = &mi->r[tp_list[j - 1]].stats;
if (minstrel_get_tp_avg(&mi->r[i], cur_mrs->prob_ewma) <=
minstrel_get_tp_avg(&mi->r[tp_list[j - 1]], tmp_mrs->prob_ewma))
break;
}
if (j < MAX_THR_RATES - 1)