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authorShayne Chen <shayne.chen@mediatek.com>2023-02-09 14:06:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-03-11 18:39:28 +0300
commit3856f7559722b76a66a3f59eb3217dfd7fcaca15 (patch)
tree14022ef283bc50040cc6a2dbc253febf88451053 /net/mac80211
parentf333346001f9ea152d04b3848e77f986ab69e5aa (diff)
downloadlinux-3856f7559722b76a66a3f59eb3217dfd7fcaca15.tar.xz
wifi: mac80211: make rate u32 in sta_set_rate_info_rx()
[ Upstream commit 59336e07b287d91dc4ec265e07724e8f7e3d0209 ] The value of last_rate in ieee80211_sta_rx_stats is degraded from u32 to u16 after being assigned to rate variable, which causes information loss in STA_STATS_FIELD_TYPE and later bitfields. Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> Link: https://lore.kernel.org/r/20230209110659.25447-1-shayne.chen@mediatek.com Fixes: 41cbb0f5a295 ("mac80211: add support for HE") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/sta_info.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index cee39ae52245..d572478c4d68 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2159,7 +2159,7 @@ static void sta_stats_decode_rate(struct ieee80211_local *local, u32 rate,
static int sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
{
- u16 rate = READ_ONCE(sta_get_last_rx_stats(sta)->last_rate);
+ u32 rate = READ_ONCE(sta_get_last_rx_stats(sta)->last_rate);
if (rate == STA_STATS_RATE_INVALID)
return -EINVAL;