Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-11 13:41:55 +00:00
Code Issues Packages Projects Releases Wiki Activity

wifi: mac80211: make rate u32 in sta_set_rate_info_rx()

Browse Source 
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>
This commit is contained in:
Shayne Chen 2023-02-09 19:06:59 +08:00 committed by Johannes Berg
parent 796703baea
commit 59336e07b2
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/mac80211/sta_info.c
View File

@ -2418,7 +2418,7 @@ 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) 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) if (rate == STA_STATS_RATE_INVALID)
return -EINVAL; return -EINVAL;