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| author | Felix Fietkau <nbd@nbd.name> | 2019-01-29 13:10:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-15 10:09:12 +0300 |
| commit | 2243296f1144ddefb9f435c1f4f5e6042481dac7 (patch) | |
| tree | 0bba7a07f97cd14380e8d0c63ba6e16ea96c7fd5 /ipc/util.h | |
| parent | 39551af0e4e6562a859b96aed99a011f756038b7 (diff) | |
| download | linux-2243296f1144ddefb9f435c1f4f5e6042481dac7.tar.xz | |
mac80211: ensure that mgmt tx skbs have tailroom for encryption
commit 9d0f50b80222dc273e67e4e14410fcfa4130a90c upstream.
Some drivers use IEEE80211_KEY_FLAG_SW_MGMT_TX to indicate that management
frames need to be software encrypted. Since normal data packets are still
encrypted by the hardware, crypto_tx_tailroom_needed_cnt gets decremented
after key upload to hw. This can lead to passing skbs to ccmp_encrypt_skb,
which don't have the necessary tailroom for software encryption.
Change the code to add tailroom for encrypted management packets, even if
crypto_tx_tailroom_needed_cnt is 0.
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'ipc/util.h')
0 files changed, 0 insertions, 0 deletions