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nfp: bpf: Add check for nfp_app_ctrl_msg_alloc()

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commit 878e7b11736e062514e58f3b445ff343e6705537 upstream.

Add check for the return value of nfp_app_ctrl_msg_alloc() in
nfp_bpf_cmsg_alloc() to prevent null pointer dereference.

Fixes: ff3d43f756 ("nfp: bpf: implement helpers for FW map ops")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Link: https://patch.msgid.link/20250218030409.2425798-1-haoxiang_li2024@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Haoxiang Li 2025-02-18 11:04:09 +08:00 • committed by Greg Kroah-Hartman
commit d64c6ca420
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/netronome/nfp/bpf/cmsg.c
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@ -20,6 +20,8 @@ nfp_bpf_cmsg_alloc(struct nfp_app_bpf *bpf, unsigned int size)
struct sk_buff *skb;
skb = nfp_app_ctrl_msg_alloc(bpf->app, size, GFP_KERNEL);
if (!skb)
return NULL;
skb_put(skb, size);
return skb;