[PATCH] tcp: use kvmalloc_array() for BPF iterator batches
From: Weimin Xiong <hidden>
Date: 2026-07-16 02:51:26
Also in:
lkml
Subsystem:
networking [general], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Neal Cardwell, Linus Torvalds
Use kvmalloc_array() instead of open-coding the element-size multiplication when allocating the TCP BPF iterator batch. Signed-off-by: Weimin Xiong <redacted> ---
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 209ef7522..d184893e5 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c@@ -2926,8 +2926,8 @@ static int bpf_iter_tcp_realloc_batch(struct bpf_tcp_iter_state *iter, { union bpf_tcp_iter_batch_item *new_batch; - new_batch = kvmalloc(sizeof(*new_batch) * new_batch_sz, - flags | __GFP_NOWARN); + new_batch = kvmalloc_array(new_batch_sz, sizeof(*new_batch), + flags | __GFP_NOWARN); if (!new_batch) return -ENOMEM;