Ensure that 'tcp' is checked for NULL before dereferencing. This resolves a potential null pointer dereference warning reported by static analysis.
Signed-off-by: Prabhav Kumar Vaish pvkumar5749404@gmail.com --- tools/testing/selftests/bpf/progs/skb_pkt_end.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/bpf/progs/skb_pkt_end.c b/tools/testing/selftests/bpf/progs/skb_pkt_end.c index 3bb4451524a1..db33ff2839f7 100644 --- a/tools/testing/selftests/bpf/progs/skb_pkt_end.c +++ b/tools/testing/selftests/bpf/progs/skb_pkt_end.c @@ -45,10 +45,10 @@ int main_prog(struct __sk_buff *skb) goto out;
tcp = (void*)(ip + 1); - if (tcp->dest != 0) - goto out; if (!tcp) goto out; + if (tcp->dest != 0) + goto out;
urg_ptr = tcp->urg_ptr;