[PATCH v2 1/1] selftests: net: fix file owner for broadcast_ether_dst test
From: Ross Porter <hidden>
Date: 2026-06-17 06:10:57
Also in:
linux-kselftest, lkml, stable
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Ensure the output file is always owned by root (even if tcpdump was compiled with `--with-user`), by passing the `-Z root` argument when invoking it. Cc: stable@vger.kernel.org Reported-by: Edoardo Canepa <redacted> Closes: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2129815 Fixes: bf59028ea8d4 ("selftests: net: add test for destination in broadcast packets") Suggested-by: Edoardo Canepa <redacted> Tested-by: Ross Porter <redacted> Signed-off-by: Ross Porter <redacted> --- tools/testing/selftests/net/broadcast_ether_dst.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/broadcast_ether_dst.sh b/tools/testing/selftests/net/broadcast_ether_dst.sh
index 334a7eca8a80..5e7a8fe23c7a 100755
--- a/tools/testing/selftests/net/broadcast_ether_dst.sh
+++ b/tools/testing/selftests/net/broadcast_ether_dst.sh@@ -44,7 +44,7 @@ test_broadcast_ether_dst() { # tcpdump will exit after receiving a single packet # timeout will kill tcpdump if it is still running after 2s timeout 2s ip netns exec "${CLIENT_NS}" \ - tcpdump -i link0 -c 1 -w "${CAPFILE}" icmp &> "${OUTPUT}" & + tcpdump -i link0 -c 1 -w "${CAPFILE}" -Z root icmp &> "${OUTPUT}" & pid=$! slowwait 1 grep -qs "listening" "${OUTPUT}"
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2.53.0