1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index c78600212b6c..75368738d32d 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -801,6 +801,8 @@ EXPORT_SYMBOL(panic);
  * Documentation/admin-guide/tainted-kernels.rst, including its
  * small shell script that prints the TAINT_FLAGS_COUNT bits of
  * /proc/sys/kernel/tainted.
+ *
+ * Also, update TAINT_BUF_MAX below.
  */
 const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
 	TAINT_FLAG(PROPRIETARY_MODULE,		'P', 'G'),
@@ -854,10 +856,12 @@ static void print_tainted_seq(struct seq_buf *s, bool verbose)
 	}
 }
 
+/* 350 can accommodate all taint flags in verbose mode, with some headroom */
+#define TAINT_BUF_MAX 350
+
 static const char *_print_tainted(bool verbose)
 {
-	/* FIXME: what should the size be? */
-	static char buf[sizeof(taint_flags)];
+	static char buf[TAINT_BUF_MAX];
 	struct seq_buf s;
 
 	BUILD_BUG_ON(ARRAY_SIZE(taint_flags) != TAINT_FLAGS_COUNT);