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| author | Haowen Bai <baihaowen@meizu.com> | 2022-04-01 10:10:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 17:53:44 +0300 |
| commit | b4628e0d3754ab2fc98ee6e3d21851ba45798077 (patch) | |
| tree | c2b91ab233d182888019cbf58cf94abf4be37a1d | |
| parent | a38a51093824663bc88b0ab85959fac3102e6168 (diff) | |
| download | linux-b4628e0d3754ab2fc98ee6e3d21851ba45798077.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>
| -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 84205aa508df..daa4f9eb08ff 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw_tx.c +++ b/drivers/net/wireless/intel/ipw2x00/libipw_tx.c @@ -397,7 +397,7 @@ 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; |