Re: [PATCH] net: tipc: Fix a possible null-pointer dereference in tipc_publ_purge()

From: Jia-Ju Bai Date: Thu, 25 Jul 2019 17:20:21 +0800 > @@ -223,7 +223,8 @@ static void tipc_publ_purge(struct net *net, struct > publication *publ, u32 addr) > publ->key); > } > > - kfree_rcu(p, rcu); > + if (p) > + kfree_rcu(p, rcu); Please fi

Re: [PATCH] net: tipc: Fix a possible null-pointer dereference in tipc_publ_purge()

On 7/25/19 5:20 PM, Jia-Ju Bai wrote: > In tipc_publ_purge(), there is an if statement on 215 to > check whether p is NULL: > if (p) > > When p is NULL, it is used on line 226: > kfree_rcu(p, rcu); > > Thus, a possible null-pointer dereference may occur. > > To fix this bug, p is check

[PATCH] net: tipc: Fix a possible null-pointer dereference in tipc_publ_purge()

In tipc_publ_purge(), there is an if statement on 215 to check whether p is NULL: if (p) When p is NULL, it is used on line 226: kfree_rcu(p, rcu); Thus, a possible null-pointer dereference may occur. To fix this bug, p is checked before being used. This bug is found by a static analy