From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7AB3BCC6B19 for ; Wed, 14 Oct 2026 06:12:36 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id 840003E2E48 for ; Wed, 14 Oct 2026 08:12:34 +0200 (CEST) Received: from in-7.smtp.seeweb.it (in-7.smtp.seeweb.it [217.194.8.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id A17F23E2B2A for ; Wed, 14 Oct 2026 08:12:19 +0200 (CEST) Received: from mta0.migadu.com (out-29.mta0.migadu.com [IPv6:2001:41d0:1004:224b::1d]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-7.smtp.seeweb.it (Postfix) with ESMTPS id 5D9032009F3 for ; Wed, 14 Oct 2026 08:12:17 +0200 (CEST) X-Envelope-To: ltp@lists.linux.it DKIM-Signature: a=rsa-sha256; bh=WvHqaj1ePLWzSR63nOhrtPBvQS7VwyLNLrl87esWCwE=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1791958336; v=1; x=1792563136; b=IOIuTGFBLajS33Wl/faSGIE209pW7JVqeyAvAXt9WTQLjKRImZTTRyOVQ4d5H7yqedn+2kVL ck3net+NeLR+PuP+SsYr5V/AB48wHcClFd91+NCW3st1sP+67HwI+g+y+gqm6iPaZBsIGMrA2G5 o2SmcI9wWYwY9oM0bIIprSUg= X-Envelope-To: ltp@lists.linux.it Received: by mta10.migadu.com with ESMTPS id 4815786d20d3ad2d; Wed, 14 Oct 2026 06:12:16 +0000 X-Mizu-Trace-ID: 4815786d20d3ad2d X-Migadu-Flow: FLOW_OUT From: Li Wang To: ltp@lists.linux.it Date: Wed, 14 Oct 2026 14:11:58 +0800 Message-ID: <20261014061202.56362-1-li.wang@linux.dev> X-Mailer: git-send-email 2.56.0 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 1.0.9 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v4 0/4] tst_kconfig: automatic module load/unload for CONFIG_*=m X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" From: "Li Wang (Hieco)" Tests that depend on a config set to =m currently load the module themselves, and may fail with misleading errors when it is missing, e.g. bind() returning EADDRNOTAVAIL for AF_VSOCK without vsock_loopback. This series makes tst_kconfig record the module for every config_module_maps[] entry seen as =m, load them once the kernel config check passes, and unload them at cleanup time. Changes in v4: - tst_kconfig: fold module_name_for_config() into kconfig_module_record() - tst_kconfig: move the choice == 'm' gate into kconfig_module_record() and pass struct tst_kconfig_var * instead of the raw config name. Changes in v3: - Queue only configs that stay 'm' after kconfig_module_check(), so a module downgraded to 'n' does not abort an otherwise runnable test. - Unload with "modprobe -r" instead of "rmmod" to also remove dependencies pulled in by modprobe. - Drop the redundant geteuid() check in the unload path. - Raise MAX_LOADED_MODULES from 16 to 32. - cve-2025-21756: drop privileges to nobody after module loading and regain root in cleanup(), so the reproducer runs from a non-root context while the framework can still unload modules. Changes in v2: - Add tst_module_is_loaded() helper. - Only load/unload modules that are not already loaded. - Skip automatic loading when KCONFIG_SKIP_CHECK=1, keeping the semantics consistent with skipping the config check. - Document the KCONFIG_SKIP_CHECK=1 behaviour for keyctl29/keyctl30 and the vsock/vsock_loopback mapping. Li Wang (Hieco) (4): lib: add module is loaded check tst_kconfig: load and unload kernel modules for CONFIG_*=m tst_kconfig: add module mappings for vsock/vsock_loopback testcases: drop manual tst_modprobe() now handled by tst_kconfig include/tst_kconfig.h | 28 ++++++++ include/tst_module.h | 1 + lib/tst_kconfig.c | 77 +++++++++++++++++++++ lib/tst_module.c | 39 +++++++++++ lib/tst_test.c | 11 ++- testcases/cve/cve-2025-21756.c | 40 +++++++++++ testcases/cve/cve-2026-46331.c | 7 -- testcases/cve/sctphantom.c | 3 - testcases/kernel/syscalls/keyctl/keyctl29.c | 3 - testcases/kernel/syscalls/keyctl/keyctl30.c | 3 - 10 files changed, 194 insertions(+), 18 deletions(-) -- 2.56.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp