diff options
| author | Haowen Bai <baihaowen@meizu.com> | 2022-04-01 10:10:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 19:11:25 +0300 |
| commit | 8fb1b9beb085bb767ae43e441db5ac6fcd66a04d (patch) | |
| tree | bd1afab172979585134615dc2a8942f210ee1a8f /drivers/net/wireless/intel/ipw2x00 | |
| parent | 303380919df76bd7533b5fb045f007433f19c695 (diff) | |
| download | linux-8fb1b9beb085bb767ae43e441db5ac6fcd66a04d.tar.xz | |
ipw2x00: Fix potential NULL dereference in libipw_xmit()
[ Upstream commit e8366bbabe1d207cf7c5b11ae50e223ae6fc278b ]
crypt and crypt->ops could be null, so we need to checking null
before dereference
Signed-off-by: Haowen Bai <baihaowen@meizu.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/1648797055-25730-1-git-send-email-baihaowen@meizu.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/wireless/intel/ipw2x00')
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw_tx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/ipw2x00/libipw_tx.c b/drivers/net/wireless/intel/ipw2x00/libipw_tx.c index d9baa2fa603b..e4c60caa6543 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw_tx.c +++ b/drivers/net/wireless/intel/ipw2x00/libipw_tx.c @@ -383,7 +383,7 @@ netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev) /* Each fragment may need to have room for encryption * pre/postfix */ - if (host_encrypt) + if (host_encrypt && crypt && crypt->ops) bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len + crypt->ops->extra_mpdu_postfix_len; |