diff options
| author | Kees Cook <keescook@chromium.org> | 2021-06-23 13:39:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-24 15:32:08 +0200 |
| commit | 5b777131bd8005acaf7e9d6e7690214155f42890 (patch) | |
| tree | 4b3e3a8e9964132b55e5d9fc56ca91e8cea9d7dd /drivers/misc/lkdtm/bugs.c | |
| parent | f123c42bbeff26bfe8bdb08a01307e92d51eec39 (diff) | |
lkdtm: Add CONFIG hints in errors where possible
For various failure conditions, try to include some details about where
to look for reasons about the failure.
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210623203936.3151093-8-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/lkdtm/bugs.c')
| -rw-r--r-- | drivers/misc/lkdtm/bugs.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 9ff02bdf3153..7c7335506c45 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -303,8 +303,10 @@ void lkdtm_CORRUPT_LIST_ADD(void) if (target[0] == NULL && target[1] == NULL) pr_err("Overwrite did not happen, but no BUG?!\n"); - else + else { pr_err("list_add() corruption not detected!\n"); + pr_expected_config(CONFIG_DEBUG_LIST); + } } void lkdtm_CORRUPT_LIST_DEL(void) @@ -328,8 +330,10 @@ void lkdtm_CORRUPT_LIST_DEL(void) if (target[0] == NULL && target[1] == NULL) pr_err("Overwrite did not happen, but no BUG?!\n"); - else + else { pr_err("list_del() corruption not detected!\n"); + pr_expected_config(CONFIG_DEBUG_LIST); + } } /* Test that VMAP_STACK is actually allocating with a leading guard page */ |