Patch "netfilter: nf_tables: use kzalloc for hook allocation" has been added to the 6.1-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    netfilter: nf_tables: use kzalloc for hook allocation

to the 6.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     netfilter-nf_tables-use-kzalloc-for-hook-allocation.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 33db609121871f789aa7af3574b7b5f132508b9d
Author: Florian Westphal <fw@xxxxxxxxx>
Date:   Wed Feb 21 18:38:45 2024 +0100

    netfilter: nf_tables: use kzalloc for hook allocation
    
    [ Upstream commit 195e5f88c2e48330ba5483e0bad2de3b3fad484f ]
    
    KMSAN reports unitialized variable when registering the hook,
       reg->hook_ops_type == NF_HOOK_OP_BPF)
            ~~~~~~~~~~~ undefined
    
    This is a small structure, just use kzalloc to make sure this
    won't happen again when new fields get added to nf_hook_ops.
    
    Fixes: 7b4b2fa37587 ("netfilter: annotate nf_tables base hook ops")
    Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
    Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index a29313e0aaa4d..e21ec3ad80939 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -2059,7 +2059,7 @@ static struct nft_hook *nft_netdev_hook_alloc(struct net *net,
 	struct nft_hook *hook;
 	int err;
 
-	hook = kmalloc(sizeof(struct nft_hook), GFP_KERNEL_ACCOUNT);
+	hook = kzalloc(sizeof(struct nft_hook), GFP_KERNEL_ACCOUNT);
 	if (!hook) {
 		err = -ENOMEM;
 		goto err_hook_alloc;