Currently we already taint the kernel in some cases.
E.g. if we hit some bug in slub memory we call object_err()
which will taint the kernel with TAINT_BAD_PAGE flag.
But for other kind of bugs kernel left untainted.
Always taint with TAINT_BAD_PAGE if kasan found some bug.
This is useful for automated testing.
Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
---
mm/kasan/report.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index f5e068a..12f222d 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -238,6 +238,7 @@ static void kasan_report_error(struct kasan_access_info *info)
}
pr_err("================================="
"=================================\n");
+ add_taint(TAINT_BAD_PAGE, LOCKDEP_NOW_UNRELIABLE);
spin_unlock_irqrestore(&report_lock, flags);
kasan_enable_current();
}
--
2.4.10
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