forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions

wifi: mac80211: make rate u32 in sta_set_rate_info_rx()

Browse source 
[ Upstream commit 59336e07b2 ]

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: 41cbb0f5a2 ("mac80211: add support for HE")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shayne Chen 2023-02-09 19:06:59 +08:00 • committed by Greg Kroah-Hartman
commit 3856f75597
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/mac80211/sta_info.c
View file

@ -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;