Merge tag 'linux_kselftest-kunit-fixes-7.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit fix from Shuah Khan:
 "Fix a use-after-free in kunit debugfs when using kunit.filter when the
  executor frees dynamically allocated resources after running boot-time
  tests. This resulted in fatal hardware exception due to invalidation
  of capability flags on the reclaimed memory on some architectures such
  as CHERI RISC-V that support the feature, and silent memory corruption
  on others.

  The fix for this couples the lifetime of the filtered suite memory
  allocation to the lifetime of the kunit subsystem and its associated
  VFS nodes. Ownership of the boot-time suite_set is now transferred to
  a global tracker ('kunit_boot_suites'), and the memory is cleanly
  released in kunit_exit() during module teardown"

* tag 'linux_kselftest-kunit-fixes-7.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  kunit: fix use-after-free in debugfs when using kunit.filter

1 files changed, 1 insertions, 0 deletions

diff --git a/include/kunit/test.h b/include/kunit/test.h
index 9cd1594ab697..ce0573e196ce 100644
--- a/include/kunit/test.h
+++ b/include/kunit/test.h
@@ -613,6 +613,7 @@ unsigned long kunit_vm_mmap(struct kunit *test, struct file *file,
 			    unsigned long offset);
 
 void kunit_cleanup(struct kunit *test);
+void kunit_free_boot_suites(void);
 
 void __printf(2, 3) kunit_log_append(struct string_stream *log, const char *fmt, ...);