diff options
| author | Aaron Tomlin <atomlin@redhat.com> | 2022-10-07 14:38:12 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-10-21 12:39:02 +0200 |
| commit | 4ceb529a001ecb6e4e12f5dd0dbfd0635c8b7766 (patch) | |
| tree | a91293e88965786d4cc6b7af3eac58d827ea240f /kernel | |
| parent | f9efa7cad7f2175abee1617f34152396c7a1ab91 (diff) | |
module: tracking: Keep a record of tainted unloaded modules only
[ Upstream commit 47cc75aa92837a9d3f15157d6272ff285585d75d ]
This ensures that no module record/or entry is added to the
unloaded_tainted_modules list if it does not carry a taint.
Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Fixes: 99bd9956551b ("module: Introduce module unload taint tracking")
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/module/tracking.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/module/tracking.c b/kernel/module/tracking.c index 7f8133044d09..af52cabfe632 100644 --- a/kernel/module/tracking.c +++ b/kernel/module/tracking.c @@ -21,6 +21,9 @@ int try_add_tainted_module(struct module *mod) module_assert_mutex_or_preempt(); + if (!mod->taints) + goto out; + list_for_each_entry_rcu(mod_taint, &unloaded_tainted_modules, list, lockdep_is_held(&module_mutex)) { if (!strcmp(mod_taint->name, mod->name) && |