kernel/linux.git/tools/testing/selftests/net, branch v6.18.43

selftests: ovpn: increase timeout

2026-08-03T09:21:43+00:00

[ Upstream commit 61ac7049aaa86ae044e8a5b94d852218163d5bf8 ] The default timeout is 45 seconds, that's too low for a few ovpn tests. Indeed, these tests can take up to 50 seconds with some debug kernel config on NIPA. Set a timeout to 90 seconds, just to be on the safe side. Note that the Fixes tag here points to the introduction of the ovpn tests because I don't know when they started to take more than 45 seconds. That's OK because a timeout of 1.5 minutes is not exaggerated. Fixes: 959bc330a439 ("testing/selftests: add test tool and scripts for ovpn module") Signed-off-by: Matthieu Baerts (NGI0) Acked-by: Antonio Quartulli Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-4-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: ovpn: add IPV6 and VETH configs

2026-08-03T09:21:43+00:00

[ Upstream commit 90c792681a3732caaf7bf5bc435877736baf591a ] They are required to run the selftests: - Tests are executed in v4 and v6. - Virtual Ethernet are used between the different netns. This has not been seen on NIPA before, because the 'ovpn' tests are executed with the 'tcp_ao' ones, merging their config files. These two kernel config are present in tools/testing/selftests/net/tcp_ao/config. This issue is visible when only the ovpn config is used on top of the default one. This is the recommended way to execute selftest targets. Fixes: 959bc330a439 ("testing/selftests: add test tool and scripts for ovpn module") Signed-off-by: Matthieu Baerts (NGI0) Acked-by: Antonio Quartulli Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-3-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: openvswitch: add config file

2026-08-03T09:21:43+00:00

[ Upstream commit 441a820ccef9af80a9ac5a4c85b9c396e595967c ] The kselftests doc mentions that a config file should be present "if a test needs specific kernel config options enabled". This selftest requires some kernel config, but no config file was provided. We could say that a sub-target could use the parent's config file, but the kselftests doc doesn't mention anything about that. Plus the net/openvswitch target is the only net target without a config file. Here is a new config file, which is a trimmed version of the net one, with hopefully the minimal required kconfig on top of 'make defconfig'. The Fixes tag points to the introduction of the net/openvswitch target, just to help validating this target on stable kernels. Fixes: 25f16c873fb1 ("selftests: add openvswitch selftest suite") Signed-off-by: Matthieu Baerts (NGI0) Reviewed-by: Eelco Chaudron Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-2-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: af_unix: add USER_NS config

2026-08-03T09:21:43+00:00

[ Upstream commit f8b1abed736111f914b2c567d9a3db1f71e788e8 ] This is required to use unshare(CLONE_NEWUSER). This has not been seen on NIPA before, because the 'af_unix' tests are executed with the 'net' ones, merging their config files. USER_NS is present in tools/testing/selftests/net/config. This issue is visible when only the af_unix config is used on top of the default one. This is the recommended way to execute selftest targets. Fixes: ac011361bd4f ("af_unix: Add test for sock_diag and UDIAG_SHOW_UID.") Signed-off-by: Matthieu Baerts (NGI0) Reviewed-by: Kuniyuki Iwashima Link: https://patch.msgid.link/20260710-net-sft-fix-containers-v1-1-a2915c294ef5@kernel.org Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests/net: ovpn: fix getaddrinfo memory leak in ovpn_parse_remote()

2026-08-03T09:21:40+00:00

[ Upstream commit 0bd9cfebc1c91e1066e56d6261b99691b9df6008 ] The ovpn_parse_remote() function has two memory management issues: 1. When both 'host' and 'vpnip' are non-NULL, the first getaddrinfo() allocation is leaked because 'result' is overwritten by the second getaddrinfo() call without freeing the first allocation. 2. When both 'host' and 'vpnip' are NULL, 'result' is an uninitialized stack variable passed to freeaddrinfo(), which is undefined behavior. Fix by initializing 'result' to NULL and calling freeaddrinfo() after the first getaddrinfo() result is consumed. Fixes: 959bc330a439 ("testing/selftests: add test tool and scripts for ovpn module") Signed-off-by: longlong yan Signed-off-by: Antonio Quartulli Signed-off-by: Sasha Levin

selftests: net: make busywait timeout clock portable

2026-07-24T14:17:15+00:00

commit dd6a23bac306b7aa322e0aaccb60c6e32a198fb3 upstream. loopy_wait() expects millisecond timestamps. However, Ubuntu Resolute can use uutils date, where `date -u +%s%3N` returns seconds plus full nanoseconds instead of a 3-digit millisecond field. This makes busywait expire too early and can make vlan_bridge_binding.sh read a stale operstate. Fixes: 25ae948b4478 ("selftests/net: add lib.sh") Cc: stable@vger.kernel.org # 6.8+ Link: https://github.com/uutils/coreutils/issues/11658 Signed-off-by: Nirmoy Das Link: https://patch.msgid.link/20260630165157.3814871-1-nirmoyd@nvidia.com Signed-off-by: Paolo Abeni Signed-off-by: Greg Kroah-Hartman

selftests: net: fix file owner for broadcast_ether_dst test

2026-07-24T14:17:12+00:00

commit b8613e9792002add3bf77122868cc06ce142e953 upstream. 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 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 Tested-by: Ross Porter Signed-off-by: Ross Porter Link: https://patch.msgid.link/20260617061039.79717-2-ross.porter@canonical.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman

selftests/net: fix EVP_MD_CTX leak in tcp_mmap

2026-07-24T14:16:50+00:00

[ Upstream commit f4ef35efbb49527293309f668ea73ec5de9b8e7a ] In tcp_mmap.c, both child_thread() and main() allocate an EVP_MD_CTX via EVP_MD_CTX_new() when integrity checking is enabled, but neither function releases the context. child_thread() misses the free in its common cleanup block, and main() returns without freeing the context. This results in a SHA256 context leak on every run that uses the ‑i (integrity) option. Add the missing EVP_MD_CTX_free() calls to the appropriate cleanup paths to fix the leak. Fixes: 5c5945dc695c ("selftests/net: Add SHA256 computation over data sent in tcp_mmap") Signed-off-by: Wang Yan Link: https://patch.msgid.link/20260702025949.442523-1-wangyan01@kylinos.cn Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin

selftests: tls: size splice_short pipe by page size

2026-07-24T14:16:40+00:00

[ Upstream commit 3e52f56875c6fafee619b5c2b4ded25f2efbd2ec ] splice_short grows its pipe with (MAX_FRAGS + 1) * 0x1000 so it can queue one short vmsplice() buffer for each fragment before draining the pipe. That assumes 4K pipe buffers. On 64K-page kernels the request is rounded to 262144 bytes, which provides only four pipe buffers. The fifth one-byte vmsplice() blocks in pipe_wait_writable and the test times out before it reaches the TLS path. Request enough bytes for the same number of pipe buffers using the runtime page size, and assert that the kernel granted at least that much. If an unprivileged run cannot raise the pipe above the system pipe-max-size limit, skip the test because it cannot exercise the intended path. Fixes: 3667e9b442b9 ("selftests: tls: add test for short splice due to full skmsg") Signed-off-by: Nirmoy Das Reviewed-by: Simon Horman Link: https://patch.msgid.link/20260624134416.3235403-1-nirmoyd@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: vlan_bridge_binding: Fix flaky operational state check

2026-07-24T14:16:31+00:00

[ Upstream commit 4045f1c3d68ef4b589ae2587e6ff66ce8017daf2 ] check_operstate() busy waits for up to one second for the operational state to change to the expected state. This is not enough since carrier loss events can be delayed by the kernel for up to one second (see __linkwatch_run_queue()), leading to sporadic failures. Fix by increasing the busy wait period to two seconds. Fixes: dca12e9ab760 ("selftests: net: Add a VLAN bridge binding selftest") Reported-by: Jakub Kicinski Closes: https://lore.kernel.org/netdev/20260616092733.3a31be4d@kernel.org/ Signed-off-by: Ido Schimmel Reviewed-by: Nikolay Aleksandrov Reviewed-by: Petr Machata Link: https://patch.msgid.link/20260617104323.1069457-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin