From: Pablo Neira Ayuso pablo@netfilter.org
[ Upstream commit a1a64a151dae8ac3581c1cbde44b672045cb658b ]
If caller reports ENOMEM, then stop iterating over the batch and send a single netlink message to userspace to report OOM.
Fixes: cbb8125eb40b ("netfilter: nfnetlink: deliver netlink errors on batch completion") Signed-off-by: Pablo Neira Ayuso pablo@netfilter.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/netfilter/nfnetlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index 2cee032af46d2..96ae1c4ad9a91 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -411,7 +411,8 @@ static void nfnetlink_rcv_batch(struct sk_buff *skb, struct nlmsghdr *nlh, * processed, this avoids that the same error is * reported several times when replaying the batch. */ - if (nfnl_err_add(&err_list, nlh, err, &extack) < 0) { + if (err == -ENOMEM || + nfnl_err_add(&err_list, nlh, err, &extack) < 0) { /* We failed to enqueue an error, reset the * list of errors and send OOM to userspace * pointing to the batch header.