From: Jeremy Kerr <jk@ozlabs.org>
Date: Thu, 19 Sep 2013 13:07:19 +0000 (+0800)
Subject: discover/boot: Fix use-after-free in boot()
X-Git-Tag: v1.0.0~492
X-Git-Url: https://git.ozlabs.org/?p=petitboot;a=commitdiff_plain;h=4926cde5c97d09794ec33cca1321bb05a8d43304

discover/boot: Fix use-after-free in boot()

We need boot_task for kexec_reboot.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
---

diff --git a/discover/boot.c b/discover/boot.c
index 8ad83be..e7a72d4 100644
--- a/discover/boot.c
+++ b/discover/boot.c
@@ -371,8 +371,6 @@ no_load:
 	if (clean_dtb)
 		unlink(boot_task->local_dtb);
 
-	talloc_free(boot_task);
-
 	if (!result) {
 		update_status(status_fn, status_arg, BOOT_STATUS_INFO,
 				"performing kexec reboot");
@@ -385,5 +383,7 @@ no_load:
 		}
 	}
 
+	talloc_free(boot_task);
+
 	return result;
 }