diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2015-11-24 20:28:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-10 10:26:04 +0200 |
| commit | 85192dbafcadfa4631d2388a93173f57d6db82cf (patch) | |
| tree | 3bfaaaf23e043ef475d36f9c34d41e4c1bae5ccc /net/mac80211 | |
| parent | be9113b305e2b9a91fa6e9b47f1df29eef255fb0 (diff) | |
mac80211: fix mgmt-tx abort cookie and leak
commit e673a65952b4ab045a3e3eb200fdf408004fb4fd upstream.
If a mgmt-tx operation is aborted before it runs, the wrong
cookie is reported back to userspace, and the ack_skb gets
leaked since the frame is freed directly instead of freeing
it using ieee80211_free_txskb(). Fix that.
Fixes: 3b79af973cf4 ("mac80211: stop using pointers as userspace cookies")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/offchannel.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index b6be51940ead..af489405d5b3 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -308,11 +308,10 @@ void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free) /* was never transmitted */ if (roc->frame) { - cfg80211_mgmt_tx_status(&roc->sdata->wdev, - (unsigned long)roc->frame, + cfg80211_mgmt_tx_status(&roc->sdata->wdev, roc->mgmt_tx_cookie, roc->frame->data, roc->frame->len, false, GFP_KERNEL); - kfree_skb(roc->frame); + ieee80211_free_txskb(&roc->sdata->local->hw, roc->frame); } if (!roc->mgmt_tx_cookie) |