From f2d6752901f2f2d8612fb43e10061570c9198af1 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 10 Feb 2022 21:02:16 +0100
Subject: [PATCH] blob: clear buf->head when freeing a buffer

Prevents accidental silent use-after-free bugs

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 blob.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/blob.c b/blob.c
index bd66d78..65adb13 100644
--- a/blob.c
+++ b/blob.c
@@ -105,6 +105,7 @@ blob_buf_free(struct blob_buf *buf)
 {
 	free(buf->buf);
 	buf->buf = NULL;
+	buf->head = NULL;
 	buf->buflen = 0;
 }