This is a note to let you know that I've just added the patch titled
kunit: debugfs: Fix unchecked dereference in debugfs_print_results()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kunit-debugfs-fix-unchecked-dereference-in-debugfs_p.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d865f92a1ee6e3b96207998f5435b2cae9f7f361
Author: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon Oct 30 10:47:58 2023 +0000
kunit: debugfs: Fix unchecked dereference in debugfs_print_results()
[ Upstream commit 34dfd5bb2e5507e69d9b6d6c90f546600c7a4977 ]
Move the call to kunit_suite_has_succeeded() after the check that
the kunit_suite pointer is valid.
This was found by smatch:
lib/kunit/debugfs.c:66 debugfs_print_results() warn: variable
dereferenced before check 'suite' (see line 63)
Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Fixes: 38289a26e1b8 ("kunit: fix debugfs code to use enum kunit_status, not bool")
Reviewed-by: Rae Moar <rmoar@xxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/lib/kunit/debugfs.c b/lib/kunit/debugfs.c
index 1048ef1b8d6e..4c4b84db8f4a 100644
--- a/lib/kunit/debugfs.c
+++ b/lib/kunit/debugfs.c
@@ -52,12 +52,14 @@ static void debugfs_print_result(struct seq_file *seq,
static int debugfs_print_results(struct seq_file *seq, void *v)
{
struct kunit_suite *suite = (struct kunit_suite *)seq->private;
- enum kunit_status success = kunit_suite_has_succeeded(suite);
+ enum kunit_status success;
struct kunit_case *test_case;
if (!suite || !suite->log)
return 0;
+ success = kunit_suite_has_succeeded(suite);
+
seq_printf(seq, "%s", suite->log);
kunit_suite_for_each_test_case(suite, test_case)
