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(parent: 03895c8) | patch
wifi: mac80211: check skb_shared in ieee80211_8023_xmit()
authorRyder Lee <ryder.lee@mediatek.com>
Thu, 26 May 2022 13:35:32 +0000 (21:35 +0800)
committerJohannes Berg <johannes.berg@intel.com>
Wed, 29 Jun 2022 09:43:15 +0000 (11:43 +0200)
commita4926abb787e2ef3ee2997e6ca8844d859478647
treeb0face7f71c88ec5c8938779be643156a6c9de3btree | snapshot
parent03895c8414d748747900ede2cb603d0ed3eeae1ccommit | diff
wifi: mac80211: check skb_shared in ieee80211_8023_xmit()

Add a missing skb_shared check into 802.3 path to prevent potential
use-after-free from happening. This also uses skb_share_check()
instead of open-coding in tx path.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Link: https://lore.kernel.org/r/e7a73aaf7742b17e43421c56625646dfc5c4d2cb.1653571902.git.ryder.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/tx.c diff | blob | history
Domain: System / Kernel;