diff options
| author |   Lachlan Hodges <lachlan.hodges@morsemicro.com> | 2025-06-21 22:32:09 +1000 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2025-06-24 09:04:55 +0200 |
| commit | 7a3750ff0f2e8fee338a9c168f429f6c37f0e820 (patch) | |
| tree | ab2d067767a63c8b2ff6d4302bc515c252bf8272 | |
| parent | wifi: iwlegacy: work around excessive stack usage on clang/kasan (diff) | |
| download | wireguard-linux-7a3750ff0f2e8fee338a9c168f429f6c37f0e820.tar.xz wireguard-linux-7a3750ff0f2e8fee338a9c168f429f6c37f0e820.zip | |
wifi: mac80211: fix beacon interval calculation overflow
As we are converting from TU to usecs, a beacon interval of
100*1024 usecs will lead to integer wrapping. To fix change
to use a u32.
Fixes: 057d5f4ba1e4 ("mac80211: sync dtim_count to TSF")
Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20250621123209.511796-1-lachlan.hodges@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/mac80211/util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 27d414efa3fd..a125995ed252 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -3884,7 +3884,7 @@ void ieee80211_recalc_dtim(struct ieee80211_local *local, { u64 tsf = drv_get_tsf(local, sdata); u64 dtim_count = 0; - u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; + u32 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; u8 dtim_period = sdata->vif.bss_conf.dtim_period; struct ps_data *ps; u8 bcns_from_dtim; |