From: Luis Chamberlain <mcgrof@kernel.org>
To: linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org,
pmladek@suse.com, david@redhat.com, petr.pavlu@suse.com,
prarit@redhat.com
Cc: christophe.leroy@csgroup.eu, song@kernel.org, mcgrof@kernel.org
Subject: [PATCH 07/12] module: split taint work out of check_modinfo_livepatch()
Date: Sun, 19 Mar 2023 14:27:41 -0700 [thread overview]
Message-ID: <20230319212746.1783033-8-mcgrof@kernel.org> (raw)
In-Reply-To: <20230319212746.1783033-1-mcgrof@kernel.org>
The work to taint the kernel due to a module should be split
up eventually. To aid with this, split up the tainting on
check_modinfo_livepatch().
This let's us bring more early checks together which do return
a value, and makes changes easier to read later where we stuff
all the work to do the taints in one single routine.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
kernel/module/main.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/kernel/module/main.c b/kernel/module/main.c
index 5e64485ac05a..cfb2ff5185fe 100644
--- a/kernel/module/main.c
+++ b/kernel/module/main.c
@@ -1808,12 +1808,8 @@ static int check_modinfo_livepatch(struct module *mod, struct load_info *info)
/* Nothing more to do */
return 0;
- if (set_livepatch_module(mod)) {
- add_taint_module(mod, TAINT_LIVEPATCH, LOCKDEP_STILL_OK);
- pr_notice_once("%s: tainting kernel with TAINT_LIVEPATCH\n",
- mod->name);
+ if (set_livepatch_module(mod))
return 0;
- }
pr_err("%s: module is marked as livepatch module, but livepatch support is disabled",
mod->name);
@@ -1993,6 +1989,11 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
if (err)
return err;
+ if (is_livepatch_module(mod)) {
+ add_taint_module(mod, TAINT_LIVEPATCH, LOCKDEP_STILL_OK);
+ pr_notice_once("%s: tainting kernel with TAINT_LIVEPATCH\n",
+ mod->name);
+ }
module_license_taint_check(mod, get_modinfo(info, "license"));
if (get_modinfo(info, "test")) {
--
2.39.1
next prev parent reply other threads:[~2023-03-19 21:27 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 21:27 [PATCH 00/12] module: cleanup and call taints after is inserted Luis Chamberlain
2023-03-19 21:27 ` [PATCH 01/12] module: move get_modinfo() helpers all above Luis Chamberlain
2023-03-19 21:27 ` [PATCH 02/12] module: rename next_string() to module_next_tag_pair() Luis Chamberlain
2023-03-19 21:27 ` [PATCH 03/12] module: add a for_each_modinfo_entry() Luis Chamberlain
2023-03-19 21:27 ` [PATCH 04/12] module: move early sanity checks into a helper Luis Chamberlain
2023-03-24 13:02 ` Petr Pavlu
2023-03-24 18:33 ` Luis Chamberlain
2023-03-19 21:27 ` [PATCH 05/12] module: move check_modinfo() early to early_mod_check() Luis Chamberlain
2023-03-19 21:27 ` [PATCH 06/12] module: rename set_license() to module_license_taint_check() Luis Chamberlain
2023-03-19 21:27 ` Luis Chamberlain [this message]
2023-03-19 21:27 ` [PATCH 08/12] module: split taint adding with info checking Luis Chamberlain
2023-03-19 21:27 ` [PATCH 09/12] module: move tainting until after a module hits our linked list Luis Chamberlain
2023-03-19 21:27 ` [PATCH 10/12] module: move signature taint to module_augment_kernel_taints() Luis Chamberlain
2023-03-19 21:27 ` [PATCH 11/12] module: converge taint work together Luis Chamberlain
2023-03-19 21:27 ` [PATCH 12/12] module: rename check_module_license_and_versions() to check_export_symbol_versions() Luis Chamberlain
2023-03-22 23:42 ` [PATCH 00/12] module: cleanup and call taints after is inserted Luis Chamberlain
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