diff options
| author | Felix Fietkau <nbd@nbd.name> | 2024-10-02 11:56:30 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-08 16:19:23 +0100 |
| commit | b0b862aa3dbcd16b3c4715259a825f48ca540088 (patch) | |
| tree | b5352b9b909adbd82955af8ac408b2cb6d80db4a | |
| parent | fe10c8367687c27172a10ba5cc849bd82077bd7d (diff) | |
wifi: mac80211: do not pass a stopped vif to the driver in .get_txpower
commit 393b6bc174b0dd21bb2a36c13b36e62fc3474a23 upstream.
Avoid potentially crashing in the driver because of uninitialized private data
Fixes: 5b3dc42b1b0d ("mac80211: add support for driver tx power reporting")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://patch.msgid.link/20241002095630.22431-1-nbd@nbd.name
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/mac80211/cfg.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index cfbaafcea0a4..1c59b8f90f5c 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2443,7 +2443,8 @@ static int ieee80211_get_tx_power(struct wiphy *wiphy, struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); - if (local->ops->get_txpower) + if (local->ops->get_txpower && + (sdata->flags & IEEE80211_SDATA_IN_DRIVER)) return drv_get_txpower(local, sdata, dbm); if (!local->use_chanctx) |