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wifi: mac80211: fix key tailroom accounting leak

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[ Upstream commit ed6a47346e ]

For keys added by ieee80211_gtk_rekey_add(), we assume that
they're already present in the hardware and set the flag
KEY_FLAG_UPLOADED_TO_HARDWARE. However, setting this flag
needs to be paired with decrementing the tailroom needed,
which was missed.

Fixes: f52a0b408e ("wifi: mac80211: mark keys as uploaded when added by the driver")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20251019115358.c88eafb4083e.I69e9d4d78a756a133668c55b5570cf15a4b0e6a4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg
2025-10-19 11:54:27 +03:00
committed by Greg Kroah-Hartman
parent 23b8682f05
commit 5596a90c89
1 changed files with 8 additions and 3 deletions
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11
net/mac80211/key.c
View File

@@ -508,11 +508,16 @@ static int ieee80211_key_replace(struct ieee80211_sub_if_data *sdata,
ret = ieee80211_key_enable_hw_accel(new);
}
} else {
if (!new->local->wowlan)
if (!new->local->wowlan) {
ret = ieee80211_key_enable_hw_accel(new);
else if (link_id < 0 || !sdata->vif.active_links ||
BIT(link_id) & sdata->vif.active_links)
} else if (link_id < 0 || !sdata->vif.active_links ||
BIT(link_id) & sdata->vif.active_links) {
new->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
if (!(new->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC |
IEEE80211_KEY_FLAG_PUT_MIC_SPACE |
IEEE80211_KEY_FLAG_RESERVE_TAILROOM)))
decrease_tailroom_need_count(sdata, 1);
}
}
if (ret)